PutItemRequest (AWS SDK for Java 1.8.9 API)

java.lang.Object
- com.amazonaws.AmazonWebServiceRequest
- - com.amazonaws.services.dynamodbv2.model.PutItemRequest

All Implemented Interfaces:

Serializable
```
public class PutItemRequest
extends AmazonWebServiceRequest
implements Serializable
```
Container for the parameters to the PutItem operation.
Creates a new item, or replaces an old item with a new item. If an item already exists in the specified table with the same primary key, the new item completely replaces the existing item. You can perform a conditional put (insert a new item if one with the specified primary key doesn't exist), or replace an existing item if it has certain attribute values.

In addition to putting an item, you can also return the item's attribute values in the same operation, using the ReturnValues parameter.

When you add an item, the primary key attribute(s) are the only required attributes. Attribute values cannot be null. String and binary type attributes must have lengths greater than zero. Set type attributes cannot be empty. Requests with empty values will be rejected with a ValidationException .

You can request that PutItem return either a copy of the old item (before the update) or a copy of the new item (after the update). For more information, see the ReturnValues description.

NOTE: To prevent a new item from replacing an existing item, use a conditional put operation with ComparisonOperator set to NULL for the primary key attribute, or attributes.

For more information about using this API, see Working with Items in the Amazon DynamoDB Developer Guide.

See Also:
AmazonDynamoDB.putItem(PutItemRequest), Serialized Form

Field Summary
- Fields inherited from class com.amazonaws.AmazonWebServiceRequest
  NOOP

Constructor Summary

Constructors
Constructor and Description
`PutItemRequest()` Default constructor for a new PutItemRequest object.
`PutItemRequest(String tableName, Map<String,AttributeValue> item)` Constructs a new PutItemRequest object.
`PutItemRequest(String tableName, Map<String,AttributeValue> item, ReturnValue returnValues)` Constructs a new PutItemRequest object.
`PutItemRequest(String tableName, Map<String,AttributeValue> item, String returnValues)` Constructs a new PutItemRequest object.

Method Summary

Methods
Modifier and Type	Method and Description
`PutItemRequest`	`addExpectedEntry(String key, ExpectedAttributeValue value)` A map of attribute/condition pairs.
`PutItemRequest`	`addItemEntry(String key, AttributeValue value)` A map of attribute name/value pairs, one for each attribute.
`PutItemRequest`	`clearExpectedEntries()` Removes all the entries added into Expected.
`PutItemRequest`	`clearItemEntries()` Removes all the entries added into Item.
`boolean`	`equals(Object obj)`
`String`	`getConditionalOperator()` A logical operator to apply to the conditions in the Expected map:
`Map<String,ExpectedAttributeValue>`	`getExpected()` A map of attribute/condition pairs.
`Map<String,AttributeValue>`	`getItem()` A map of attribute name/value pairs, one for each attribute.
`String`	`getReturnConsumedCapacity()` If set to `TOTAL`, the response includes ConsumedCapacity data for tables and indexes.
`String`	`getReturnItemCollectionMetrics()` If set to `SIZE`, statistics about item collections, if any, that were modified during the operation are returned in the response.
`String`	`getReturnValues()` Use ReturnValues if you want to get the item attributes as they appeared before they were updated with the PutItem request.
`String`	`getTableName()` The name of the table to contain the item.
`int`	`hashCode()`
`void`	`setConditionalOperator(ConditionalOperator conditionalOperator)` A logical operator to apply to the conditions in the Expected map:
`void`	`setConditionalOperator(String conditionalOperator)` A logical operator to apply to the conditions in the Expected map:
`void`	`setExpected(Map<String,ExpectedAttributeValue> expected)` A map of attribute/condition pairs.
`void`	`setItem(Map<String,AttributeValue> item)` A map of attribute name/value pairs, one for each attribute.
`void`	`setReturnConsumedCapacity(ReturnConsumedCapacity returnConsumedCapacity)` If set to `TOTAL`, the response includes ConsumedCapacity data for tables and indexes.
`void`	`setReturnConsumedCapacity(String returnConsumedCapacity)` If set to `TOTAL`, the response includes ConsumedCapacity data for tables and indexes.
`void`	`setReturnItemCollectionMetrics(ReturnItemCollectionMetrics returnItemCollectionMetrics)` If set to `SIZE`, statistics about item collections, if any, that were modified during the operation are returned in the response.
`void`	`setReturnItemCollectionMetrics(String returnItemCollectionMetrics)` If set to `SIZE`, statistics about item collections, if any, that were modified during the operation are returned in the response.
`void`	`setReturnValues(ReturnValue returnValues)` Use ReturnValues if you want to get the item attributes as they appeared before they were updated with the PutItem request.
`void`	`setReturnValues(String returnValues)` Use ReturnValues if you want to get the item attributes as they appeared before they were updated with the PutItem request.
`void`	`setTableName(String tableName)` The name of the table to contain the item.
`String`	`toString()` Returns a string representation of this object; useful for testing and debugging.
`PutItemRequest`	`withConditionalOperator(ConditionalOperator conditionalOperator)` A logical operator to apply to the conditions in the Expected map:
`PutItemRequest`	`withConditionalOperator(String conditionalOperator)` A logical operator to apply to the conditions in the Expected map:
`PutItemRequest`	`withExpected(Map<String,ExpectedAttributeValue> expected)` A map of attribute/condition pairs.
`PutItemRequest`	`withItem(Map<String,AttributeValue> item)` A map of attribute name/value pairs, one for each attribute.
`PutItemRequest`	`withReturnConsumedCapacity(ReturnConsumedCapacity returnConsumedCapacity)` If set to `TOTAL`, the response includes ConsumedCapacity data for tables and indexes.
`PutItemRequest`	`withReturnConsumedCapacity(String returnConsumedCapacity)` If set to `TOTAL`, the response includes ConsumedCapacity data for tables and indexes.
`PutItemRequest`	`withReturnItemCollectionMetrics(ReturnItemCollectionMetrics returnItemCollectionMetrics)` If set to `SIZE`, statistics about item collections, if any, that were modified during the operation are returned in the response.
`PutItemRequest`	`withReturnItemCollectionMetrics(String returnItemCollectionMetrics)` If set to `SIZE`, statistics about item collections, if any, that were modified during the operation are returned in the response.
`PutItemRequest`	`withReturnValues(ReturnValue returnValues)` Use ReturnValues if you want to get the item attributes as they appeared before they were updated with the PutItem request.
`PutItemRequest`	`withReturnValues(String returnValues)` Use ReturnValues if you want to get the item attributes as they appeared before they were updated with the PutItem request.
`PutItemRequest`	`withTableName(String tableName)` The name of the table to contain the item.

Methods inherited from class com.amazonaws.AmazonWebServiceRequest
copyPrivateRequestParameters, getGeneralProgressListener, getRequestClientOptions, getRequestCredentials, getRequestMetricCollector, setGeneralProgressListener, setRequestCredentials, setRequestMetricCollector, withGeneralProgressListener, withRequestMetricCollector

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - PutItemRequest
```
public PutItemRequest()
```
    Default constructor for a new PutItemRequest object. Callers should use the setter or fluent setter (with...) methods to initialize this object after creating it.
  - PutItemRequest
```
public PutItemRequest(String tableName,
              Map<String,AttributeValue> item)
```
    Constructs a new PutItemRequest object. Callers should use the setter or fluent setter (with...) methods to initialize any additional object members.
    
    Parameters:
    tableName - The name of the table to contain the item.
    item - A map of attribute name/value pairs, one for each attribute. Only the primary key attributes are required; you can optionally provide other attribute name-value pairs for the item.
    If you specify any attributes that are part of an index key, then the data types for those attributes must match those of the schema in the table's attribute definition.
    For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide.
    Each element in the Item map is an AttributeValue object.
  - PutItemRequest
```
public PutItemRequest(String tableName,
              Map<String,AttributeValue> item,
              String returnValues)
```
    Constructs a new PutItemRequest object. Callers should use the setter or fluent setter (with...) methods to initialize any additional object members.
    Parameters:
    tableName - The name of the table to contain the item.
    item - A map of attribute name/value pairs, one for each attribute. Only the primary key attributes are required; you can optionally provide other attribute name-value pairs for the item.
    If you specify any attributes that are part of an index key, then the data types for those attributes must match those of the schema in the table's attribute definition.
    For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide.
    Each element in the Item map is an AttributeValue object.
    returnValues - Use ReturnValues if you want to get the item attributes as they appeared before they were updated with the PutItem request. For PutItem, the valid values are:
    
    NONE - If ReturnValues is not specified, or if its value is NONE, then nothing is returned. (This is the default for ReturnValues.)
    
    ALL_OLD - If PutItem overwrote an attribute name-value pair, then the content of the old item is returned.
  - PutItemRequest
```
public PutItemRequest(String tableName,
              Map<String,AttributeValue> item,
              ReturnValue returnValues)
```
    Constructs a new PutItemRequest object. Callers should use the setter or fluent setter (with...) methods to initialize any additional object members.
    Parameters:
    tableName - The name of the table to contain the item.
    item - A map of attribute name/value pairs, one for each attribute. Only the primary key attributes are required; you can optionally provide other attribute name-value pairs for the item.
    If you specify any attributes that are part of an index key, then the data types for those attributes must match those of the schema in the table's attribute definition.
    For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide.
    Each element in the Item map is an AttributeValue object.
    returnValues - Use ReturnValues if you want to get the item attributes as they appeared before they were updated with the PutItem request. For PutItem, the valid values are:
    
    NONE - If ReturnValues is not specified, or if its value is NONE, then nothing is returned. (This is the default for ReturnValues.)
    
    ALL_OLD - If PutItem overwrote an attribute name-value pair, then the content of the old item is returned.
- Method Detail
  - getTableName
```
public String getTableName()
```
    The name of the table to contain the item.
    Constraints:
    Length: 3 - 255
    Pattern: [a-zA-Z0-9_.-]+
    
    Returns:
    The name of the table to contain the item.
  - setTableName
```
public void setTableName(String tableName)
```
    The name of the table to contain the item.
    Constraints:
    Length: 3 - 255
    Pattern: [a-zA-Z0-9_.-]+
    
    Parameters:
    tableName - The name of the table to contain the item.
  - withTableName
```
public PutItemRequest withTableName(String tableName)
```
    The name of the table to contain the item.
    Returns a reference to this object so that method calls can be chained together.
    Constraints:
    Length: 3 - 255
    Pattern: [a-zA-Z0-9_.-]+
    
    Parameters:
    tableName - The name of the table to contain the item.
    
    Returns:
    A reference to this updated object so that method calls can be chained together.
  - getItem
```
public Map<String,AttributeValue> getItem()
```
    A map of attribute name/value pairs, one for each attribute. Only the primary key attributes are required; you can optionally provide other attribute name-value pairs for the item.
    If you specify any attributes that are part of an index key, then the data types for those attributes must match those of the schema in the table's attribute definition.
    For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide.
    Each element in the Item map is an AttributeValue object.
    
    Returns:
    A map of attribute name/value pairs, one for each attribute. Only the primary key attributes are required; you can optionally provide other attribute name-value pairs for the item.
    If you specify any attributes that are part of an index key, then the data types for those attributes must match those of the schema in the table's attribute definition.
    For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide.
    Each element in the Item map is an AttributeValue object.
  - setItem
```
public void setItem(Map<String,AttributeValue> item)
```
    A map of attribute name/value pairs, one for each attribute. Only the primary key attributes are required; you can optionally provide other attribute name-value pairs for the item.
    If you specify any attributes that are part of an index key, then the data types for those attributes must match those of the schema in the table's attribute definition.
    For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide.
    Each element in the Item map is an AttributeValue object.
    
    Parameters:
    item - A map of attribute name/value pairs, one for each attribute. Only the primary key attributes are required; you can optionally provide other attribute name-value pairs for the item.
    If you specify any attributes that are part of an index key, then the data types for those attributes must match those of the schema in the table's attribute definition.
    For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide.
    Each element in the Item map is an AttributeValue object.
  - withItem
```
public PutItemRequest withItem(Map<String,AttributeValue> item)
```
    A map of attribute name/value pairs, one for each attribute. Only the primary key attributes are required; you can optionally provide other attribute name-value pairs for the item.
    If you specify any attributes that are part of an index key, then the data types for those attributes must match those of the schema in the table's attribute definition.
    For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide.
    Each element in the Item map is an AttributeValue object.
    Returns a reference to this object so that method calls can be chained together.
    
    Parameters:
    item - A map of attribute name/value pairs, one for each attribute. Only the primary key attributes are required; you can optionally provide other attribute name-value pairs for the item.
    If you specify any attributes that are part of an index key, then the data types for those attributes must match those of the schema in the table's attribute definition.
    For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide.
    Each element in the Item map is an AttributeValue object.
    
    Returns:
    A reference to this updated object so that method calls can be chained together.
  - addItemEntry
```
public PutItemRequest addItemEntry(String key,
                          AttributeValue value)
```
    A map of attribute name/value pairs, one for each attribute. Only the primary key attributes are required; you can optionally provide other attribute name-value pairs for the item.
    If you specify any attributes that are part of an index key, then the data types for those attributes must match those of the schema in the table's attribute definition.
    For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide.
    Each element in the Item map is an AttributeValue object.
    The method adds a new key-value pair into Item parameter, and returns a reference to this object so that method calls can be chained together.
    
    Parameters:
    key - The key of the entry to be added into Item.
    value - The corresponding value of the entry to be added into Item.
  - clearItemEntries
```
public PutItemRequest clearItemEntries()
```
    Removes all the entries added into Item.
    Returns a reference to this object so that method calls can be chained together.
  - getExpected
```
public Map<String,ExpectedAttributeValue> getExpected()
```
    A map of attribute/condition pairs. This is the conditional block for the PutItem operation.
    Each element of Expected consists of an attribute name, a comparison operator, and one or more values. DynamoDB compares the attribute with the value(s) you supplied, using the comparison operator. For each Expected element, the result of the evaluation is either true or false.
    If you specify more than one element in the Expected map, then by default all of the conditions must evaluate to true. In other words, the conditions are ANDed together. (You can use the ConditionalOperator parameter to OR the conditions instead. If you do this, then at least one of the conditions must evaluate to true, rather than all of them.)
    If the Expected map evaluates to true, then the conditional operation succeeds; otherwise, it fails.
    Each item in Expected represents an attribute name for DynamoDB to check, along with an AttributeValueList and a ComparisonOperator:
    - AttributeValueList - One or more values to evaluate against the supplied attribute. The number of values in the list depends on the ComparisonOperator being used.
      For type Number, value comparisons are numeric.
      String value comparisons for greater than, equals, or less than are based on ASCII character code values. For example, a is greater than A, and aa is greater than B. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
      For Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values, for example when evaluating query expressions.
    - ComparisonOperator - A comparator for evaluating attributes in the AttributeValueList. When performing the comparison, DynamoDB uses strongly consistent reads.
      The following comparison operators are available:
      EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
      The following are descriptions of each comparison operator.
      
      EQ : Equal.
      AttributeValueList can contain only one AttributeValue of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not equal {"NS":["6", "2", "1"]}.
      
      NE : Not equal.
      AttributeValueList can contain only one AttributeValue of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not equal {"NS":["6", "2", "1"]}.
      
      LE : Less than or equal.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
      
      LT : Less than.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
      
      GE : Greater than or equal.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
      
      GT : Greater than.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
      
      NOT_NULL : The attribute exists.
      
      NULL : The attribute does not exist.
      
      CONTAINS : checks for a subsequence, or value in a set.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for a substring match. If the target attribute of the comparison is Binary, then the operation looks for a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for a member of the set (not as a substring).
      
      NOT_CONTAINS : checks for absence of a subsequence, or absence of a value in a set.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for the absence of a substring match. If the target attribute of the comparison is Binary, then the operation checks for the absence of a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for the absence of a member of the set (not as a substring).
      
      BEGINS_WITH : checks for a prefix.
      AttributeValueList can contain only one AttributeValue of type String or Binary (not a Number or a set). The target attribute of the comparison must be a String or Binary (not a Number or a set).
      
      IN : checks for exact matches.
      AttributeValueList can contain more than one AttributeValue of type String, Number, or Binary (not a set). The target attribute of the comparison must be of the same type and exact value to match. A String never matches a String set.
      
      BETWEEN : Greater than or equal to the first value, and less than or equal to the second value.
      AttributeValueList must contain two AttributeValue elements of the same type, either String, Number, or Binary (not a set). A target attribute matches if the target value is greater than, or equal to, the first element and less than, or equal to, the second element. If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not compare to {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}
    For usage examples of AttributeValueList and ComparisonOperator, see Conditional Expressions in the Amazon DynamoDB Developer Guide.
    For backward compatibility with previous DynamoDB releases, the following parameters can be used instead of AttributeValueList and ComparisonOperator:
    - Value - A value for DynamoDB to compare with an attribute.
    - Exists - Causes DynamoDB to evaluate the value vefore attempting the conditional operation:
      
      If Exists is true, DynamoDB will check to see if that attribute??? value already exists in the table. If it is found, then the condition evaluates to true; otherwise the condition evaluate to false.
      
      If Exists is false, DynamoDB assumes that the attribute value does??? not exist in the table. If in fact the value does not exist, then the??? assumption is valid and the condition evaluates to true. If the value is found, despite the assumption that it does not exist, the condition evaluates to false.???
    Even though DynamoDB continues to accept the Value and Exists parameters, they are now deprecated. We recommend that you use AttributeValueList and ComparisonOperator instead, since they allow you to constuct a much wider range of conditions.
    The Value and Exists parameters are incompatible with AttributeValueList and ComparisonOperator. If you attempt to use both sets of parameters at once, DynamoDB will throw a ValidationException.
    Returns:
    A map of attribute/condition pairs. This is the conditional block for the PutItem operation.
    Each element of Expected consists of an attribute name, a comparison operator, and one or more values. DynamoDB compares the attribute with the value(s) you supplied, using the comparison operator. For each Expected element, the result of the evaluation is either true or false.
    If you specify more than one element in the Expected map, then by default all of the conditions must evaluate to true. In other words, the conditions are ANDed together. (You can use the ConditionalOperator parameter to OR the conditions instead. If you do this, then at least one of the conditions must evaluate to true, rather than all of them.)
    If the Expected map evaluates to true, then the conditional operation succeeds; otherwise, it fails.
    Each item in Expected represents an attribute name for DynamoDB to check, along with an AttributeValueList and a ComparisonOperator:
    
    AttributeValueList - One or more values to evaluate against the supplied attribute. The number of values in the list depends on the ComparisonOperator being used.
    For type Number, value comparisons are numeric.
    String value comparisons for greater than, equals, or less than are based on ASCII character code values. For example, a is greater than A, and aa is greater than B. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
    For Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values, for example when evaluating query expressions.
    
    ComparisonOperator - A comparator for evaluating attributes in the AttributeValueList. When performing the comparison, DynamoDB uses strongly consistent reads.
    The following comparison operators are available:
    EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
    The following are descriptions of each comparison operator.
    
    EQ : Equal.
    AttributeValueList can contain only one AttributeValue of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not equal {"NS":["6", "2", "1"]}.
    
    NE : Not equal.
    AttributeValueList can contain only one AttributeValue of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not equal {"NS":["6", "2", "1"]}.
    
    LE : Less than or equal.
    AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
    
    LT : Less than.
    AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
    
    GE : Greater than or equal.
    AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
    
    GT : Greater than.
    AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
    
    NOT_NULL : The attribute exists.
    
    NULL : The attribute does not exist.
    
    CONTAINS : checks for a subsequence, or value in a set.
    AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for a substring match. If the target attribute of the comparison is Binary, then the operation looks for a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for a member of the set (not as a substring).
    
    NOT_CONTAINS : checks for absence of a subsequence, or absence of a value in a set.
    AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for the absence of a substring match. If the target attribute of the comparison is Binary, then the operation checks for the absence of a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for the absence of a member of the set (not as a substring).
    
    BEGINS_WITH : checks for a prefix.
    AttributeValueList can contain only one AttributeValue of type String or Binary (not a Number or a set). The target attribute of the comparison must be a String or Binary (not a Number or a set).
    
    IN : checks for exact matches.
    AttributeValueList can contain more than one AttributeValue of type String, Number, or Binary (not a set). The target attribute of the comparison must be of the same type and exact value to match. A String never matches a String set.
    
    BETWEEN : Greater than or equal to the first value, and less than or equal to the second value.
    AttributeValueList must contain two AttributeValue elements of the same type, either String, Number, or Binary (not a set). A target attribute matches if the target value is greater than, or equal to, the first element and less than, or equal to, the second element. If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not compare to {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}
    
    For usage examples of AttributeValueList and ComparisonOperator, see Conditional Expressions in the Amazon DynamoDB Developer Guide.
    For backward compatibility with previous DynamoDB releases, the following parameters can be used instead of AttributeValueList and ComparisonOperator:
    
    Value - A value for DynamoDB to compare with an attribute.
    
    Exists - Causes DynamoDB to evaluate the value vefore attempting the conditional operation:
    
    If Exists is true, DynamoDB will check to see if that attribute??? value already exists in the table. If it is found, then the condition evaluates to true; otherwise the condition evaluate to false.
    
    If Exists is false, DynamoDB assumes that the attribute value does??? not exist in the table. If in fact the value does not exist, then the??? assumption is valid and the condition evaluates to true. If the value is found, despite the assumption that it does not exist, the condition evaluates to false.???
    
    Even though DynamoDB continues to accept the Value and Exists parameters, they are now deprecated. We recommend that you use AttributeValueList and ComparisonOperator instead, since they allow you to constuct a much wider range of conditions.
    The Value and Exists parameters are incompatible with AttributeValueList and ComparisonOperator. If you attempt to use both sets of parameters at once, DynamoDB will throw a ValidationException.
  - setExpected
```
public void setExpected(Map<String,ExpectedAttributeValue> expected)
```
    A map of attribute/condition pairs. This is the conditional block for the PutItem operation.
    Each element of Expected consists of an attribute name, a comparison operator, and one or more values. DynamoDB compares the attribute with the value(s) you supplied, using the comparison operator. For each Expected element, the result of the evaluation is either true or false.
    If you specify more than one element in the Expected map, then by default all of the conditions must evaluate to true. In other words, the conditions are ANDed together. (You can use the ConditionalOperator parameter to OR the conditions instead. If you do this, then at least one of the conditions must evaluate to true, rather than all of them.)
    If the Expected map evaluates to true, then the conditional operation succeeds; otherwise, it fails.
    Each item in Expected represents an attribute name for DynamoDB to check, along with an AttributeValueList and a ComparisonOperator:
    - AttributeValueList - One or more values to evaluate against the supplied attribute. The number of values in the list depends on the ComparisonOperator being used.
      For type Number, value comparisons are numeric.
      String value comparisons for greater than, equals, or less than are based on ASCII character code values. For example, a is greater than A, and aa is greater than B. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
      For Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values, for example when evaluating query expressions.
    - ComparisonOperator - A comparator for evaluating attributes in the AttributeValueList. When performing the comparison, DynamoDB uses strongly consistent reads.
      The following comparison operators are available:
      EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
      The following are descriptions of each comparison operator.
      
      EQ : Equal.
      AttributeValueList can contain only one AttributeValue of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not equal {"NS":["6", "2", "1"]}.
      
      NE : Not equal.
      AttributeValueList can contain only one AttributeValue of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not equal {"NS":["6", "2", "1"]}.
      
      LE : Less than or equal.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
      
      LT : Less than.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
      
      GE : Greater than or equal.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
      
      GT : Greater than.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
      
      NOT_NULL : The attribute exists.
      
      NULL : The attribute does not exist.
      
      CONTAINS : checks for a subsequence, or value in a set.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for a substring match. If the target attribute of the comparison is Binary, then the operation looks for a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for a member of the set (not as a substring).
      
      NOT_CONTAINS : checks for absence of a subsequence, or absence of a value in a set.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for the absence of a substring match. If the target attribute of the comparison is Binary, then the operation checks for the absence of a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for the absence of a member of the set (not as a substring).
      
      BEGINS_WITH : checks for a prefix.
      AttributeValueList can contain only one AttributeValue of type String or Binary (not a Number or a set). The target attribute of the comparison must be a String or Binary (not a Number or a set).
      
      IN : checks for exact matches.
      AttributeValueList can contain more than one AttributeValue of type String, Number, or Binary (not a set). The target attribute of the comparison must be of the same type and exact value to match. A String never matches a String set.
      
      BETWEEN : Greater than or equal to the first value, and less than or equal to the second value.
      AttributeValueList must contain two AttributeValue elements of the same type, either String, Number, or Binary (not a set). A target attribute matches if the target value is greater than, or equal to, the first element and less than, or equal to, the second element. If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not compare to {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}
    For usage examples of AttributeValueList and ComparisonOperator, see Conditional Expressions in the Amazon DynamoDB Developer Guide.
    For backward compatibility with previous DynamoDB releases, the following parameters can be used instead of AttributeValueList and ComparisonOperator:
    - Value - A value for DynamoDB to compare with an attribute.
    - Exists - Causes DynamoDB to evaluate the value vefore attempting the conditional operation:
      
      If Exists is true, DynamoDB will check to see if that attribute??? value already exists in the table. If it is found, then the condition evaluates to true; otherwise the condition evaluate to false.
      
      If Exists is false, DynamoDB assumes that the attribute value does??? not exist in the table. If in fact the value does not exist, then the??? assumption is valid and the condition evaluates to true. If the value is found, despite the assumption that it does not exist, the condition evaluates to false.???
    Even though DynamoDB continues to accept the Value and Exists parameters, they are now deprecated. We recommend that you use AttributeValueList and ComparisonOperator instead, since they allow you to constuct a much wider range of conditions.
    The Value and Exists parameters are incompatible with AttributeValueList and ComparisonOperator. If you attempt to use both sets of parameters at once, DynamoDB will throw a ValidationException.
    Parameters:
    expected - A map of attribute/condition pairs. This is the conditional block for the PutItem operation.
    Each element of Expected consists of an attribute name, a comparison operator, and one or more values. DynamoDB compares the attribute with the value(s) you supplied, using the comparison operator. For each Expected element, the result of the evaluation is either true or false.
    If you specify more than one element in the Expected map, then by default all of the conditions must evaluate to true. In other words, the conditions are ANDed together. (You can use the ConditionalOperator parameter to OR the conditions instead. If you do this, then at least one of the conditions must evaluate to true, rather than all of them.)
    If the Expected map evaluates to true, then the conditional operation succeeds; otherwise, it fails.
    Each item in Expected represents an attribute name for DynamoDB to check, along with an AttributeValueList and a ComparisonOperator:
    
    AttributeValueList - One or more values to evaluate against the supplied attribute. The number of values in the list depends on the ComparisonOperator being used.
    For type Number, value comparisons are numeric.
    String value comparisons for greater than, equals, or less than are based on ASCII character code values. For example, a is greater than A, and aa is greater than B. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
    For Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values, for example when evaluating query expressions.
    
    ComparisonOperator - A comparator for evaluating attributes in the AttributeValueList. When performing the comparison, DynamoDB uses strongly consistent reads.
    The following comparison operators are available:
    EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
    The following are descriptions of each comparison operator.
    
    EQ : Equal.
    AttributeValueList can contain only one AttributeValue of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not equal {"NS":["6", "2", "1"]}.
    
    NE : Not equal.
    AttributeValueList can contain only one AttributeValue of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not equal {"NS":["6", "2", "1"]}.
    
    LE : Less than or equal.
    AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
    
    LT : Less than.
    AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
    
    GE : Greater than or equal.
    AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
    
    GT : Greater than.
    AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
    
    NOT_NULL : The attribute exists.
    
    NULL : The attribute does not exist.
    
    CONTAINS : checks for a subsequence, or value in a set.
    AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for a substring match. If the target attribute of the comparison is Binary, then the operation looks for a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for a member of the set (not as a substring).
    
    NOT_CONTAINS : checks for absence of a subsequence, or absence of a value in a set.
    AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for the absence of a substring match. If the target attribute of the comparison is Binary, then the operation checks for the absence of a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for the absence of a member of the set (not as a substring).
    
    BEGINS_WITH : checks for a prefix.
    AttributeValueList can contain only one AttributeValue of type String or Binary (not a Number or a set). The target attribute of the comparison must be a String or Binary (not a Number or a set).
    
    IN : checks for exact matches.
    AttributeValueList can contain more than one AttributeValue of type String, Number, or Binary (not a set). The target attribute of the comparison must be of the same type and exact value to match. A String never matches a String set.
    
    BETWEEN : Greater than or equal to the first value, and less than or equal to the second value.
    AttributeValueList must contain two AttributeValue elements of the same type, either String, Number, or Binary (not a set). A target attribute matches if the target value is greater than, or equal to, the first element and less than, or equal to, the second element. If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not compare to {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}
    
    For usage examples of AttributeValueList and ComparisonOperator, see Conditional Expressions in the Amazon DynamoDB Developer Guide.
    For backward compatibility with previous DynamoDB releases, the following parameters can be used instead of AttributeValueList and ComparisonOperator:
    
    Value - A value for DynamoDB to compare with an attribute.
    
    Exists - Causes DynamoDB to evaluate the value vefore attempting the conditional operation:
    
    If Exists is true, DynamoDB will check to see if that attribute??? value already exists in the table. If it is found, then the condition evaluates to true; otherwise the condition evaluate to false.
    
    If Exists is false, DynamoDB assumes that the attribute value does??? not exist in the table. If in fact the value does not exist, then the??? assumption is valid and the condition evaluates to true. If the value is found, despite the assumption that it does not exist, the condition evaluates to false.???
    
    Even though DynamoDB continues to accept the Value and Exists parameters, they are now deprecated. We recommend that you use AttributeValueList and ComparisonOperator instead, since they allow you to constuct a much wider range of conditions.
    The Value and Exists parameters are incompatible with AttributeValueList and ComparisonOperator. If you attempt to use both sets of parameters at once, DynamoDB will throw a ValidationException.
  - withExpected
```
public PutItemRequest withExpected(Map<String,ExpectedAttributeValue> expected)
```
    A map of attribute/condition pairs. This is the conditional block for the PutItem operation.
    Each element of Expected consists of an attribute name, a comparison operator, and one or more values. DynamoDB compares the attribute with the value(s) you supplied, using the comparison operator. For each Expected element, the result of the evaluation is either true or false.
    If you specify more than one element in the Expected map, then by default all of the conditions must evaluate to true. In other words, the conditions are ANDed together. (You can use the ConditionalOperator parameter to OR the conditions instead. If you do this, then at least one of the conditions must evaluate to true, rather than all of them.)
    If the Expected map evaluates to true, then the conditional operation succeeds; otherwise, it fails.
    Each item in Expected represents an attribute name for DynamoDB to check, along with an AttributeValueList and a ComparisonOperator:
    - AttributeValueList - One or more values to evaluate against the supplied attribute. The number of values in the list depends on the ComparisonOperator being used.
      For type Number, value comparisons are numeric.
      String value comparisons for greater than, equals, or less than are based on ASCII character code values. For example, a is greater than A, and aa is greater than B. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
      For Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values, for example when evaluating query expressions.
    - ComparisonOperator - A comparator for evaluating attributes in the AttributeValueList. When performing the comparison, DynamoDB uses strongly consistent reads.
      The following comparison operators are available:
      EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
      The following are descriptions of each comparison operator.
      
      EQ : Equal.
      AttributeValueList can contain only one AttributeValue of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not equal {"NS":["6", "2", "1"]}.
      
      NE : Not equal.
      AttributeValueList can contain only one AttributeValue of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not equal {"NS":["6", "2", "1"]}.
      
      LE : Less than or equal.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
      
      LT : Less than.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
      
      GE : Greater than or equal.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
      
      GT : Greater than.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
      
      NOT_NULL : The attribute exists.
      
      NULL : The attribute does not exist.
      
      CONTAINS : checks for a subsequence, or value in a set.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for a substring match. If the target attribute of the comparison is Binary, then the operation looks for a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for a member of the set (not as a substring).
      
      NOT_CONTAINS : checks for absence of a subsequence, or absence of a value in a set.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for the absence of a substring match. If the target attribute of the comparison is Binary, then the operation checks for the absence of a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for the absence of a member of the set (not as a substring).
      
      BEGINS_WITH : checks for a prefix.
      AttributeValueList can contain only one AttributeValue of type String or Binary (not a Number or a set). The target attribute of the comparison must be a String or Binary (not a Number or a set).
      
      IN : checks for exact matches.
      AttributeValueList can contain more than one AttributeValue of type String, Number, or Binary (not a set). The target attribute of the comparison must be of the same type and exact value to match. A String never matches a String set.
      
      BETWEEN : Greater than or equal to the first value, and less than or equal to the second value.
      AttributeValueList must contain two AttributeValue elements of the same type, either String, Number, or Binary (not a set). A target attribute matches if the target value is greater than, or equal to, the first element and less than, or equal to, the second element. If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not compare to {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}
    For usage examples of AttributeValueList and ComparisonOperator, see Conditional Expressions in the Amazon DynamoDB Developer Guide.
    For backward compatibility with previous DynamoDB releases, the following parameters can be used instead of AttributeValueList and ComparisonOperator:
    - Value - A value for DynamoDB to compare with an attribute.
    - Exists - Causes DynamoDB to evaluate the value vefore attempting the conditional operation:
      
      If Exists is true, DynamoDB will check to see if that attribute??? value already exists in the table. If it is found, then the condition evaluates to true; otherwise the condition evaluate to false.
      
      If Exists is false, DynamoDB assumes that the attribute value does??? not exist in the table. If in fact the value does not exist, then the??? assumption is valid and the condition evaluates to true. If the value is found, despite the assumption that it does not exist, the condition evaluates to false.???
    Even though DynamoDB continues to accept the Value and Exists parameters, they are now deprecated. We recommend that you use AttributeValueList and ComparisonOperator instead, since they allow you to constuct a much wider range of conditions.
    The Value and Exists parameters are incompatible with AttributeValueList and ComparisonOperator. If you attempt to use both sets of parameters at once, DynamoDB will throw a ValidationException.
    Returns a reference to this object so that method calls can be chained together.
    Parameters:
    expected - A map of attribute/condition pairs. This is the conditional block for the PutItem operation.
    Each element of Expected consists of an attribute name, a comparison operator, and one or more values. DynamoDB compares the attribute with the value(s) you supplied, using the comparison operator. For each Expected element, the result of the evaluation is either true or false.
    If you specify more than one element in the Expected map, then by default all of the conditions must evaluate to true. In other words, the conditions are ANDed together. (You can use the ConditionalOperator parameter to OR the conditions instead. If you do this, then at least one of the conditions must evaluate to true, rather than all of them.)
    If the Expected map evaluates to true, then the conditional operation succeeds; otherwise, it fails.
    Each item in Expected represents an attribute name for DynamoDB to check, along with an AttributeValueList and a ComparisonOperator:
    
    AttributeValueList - One or more values to evaluate against the supplied attribute. The number of values in the list depends on the ComparisonOperator being used.
    For type Number, value comparisons are numeric.
    String value comparisons for greater than, equals, or less than are based on ASCII character code values. For example, a is greater than A, and aa is greater than B. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
    For Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values, for example when evaluating query expressions.
    
    ComparisonOperator - A comparator for evaluating attributes in the AttributeValueList. When performing the comparison, DynamoDB uses strongly consistent reads.
    The following comparison operators are available:
    EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
    The following are descriptions of each comparison operator.
    
    EQ : Equal.
    AttributeValueList can contain only one AttributeValue of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not equal {"NS":["6", "2", "1"]}.
    
    NE : Not equal.
    AttributeValueList can contain only one AttributeValue of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not equal {"NS":["6", "2", "1"]}.
    
    LE : Less than or equal.
    AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
    
    LT : Less than.
    AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
    
    GE : Greater than or equal.
    AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
    
    GT : Greater than.
    AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
    
    NOT_NULL : The attribute exists.
    
    NULL : The attribute does not exist.
    
    CONTAINS : checks for a subsequence, or value in a set.
    AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for a substring match. If the target attribute of the comparison is Binary, then the operation looks for a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for a member of the set (not as a substring).
    
    NOT_CONTAINS : checks for absence of a subsequence, or absence of a value in a set.
    AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for the absence of a substring match. If the target attribute of the comparison is Binary, then the operation checks for the absence of a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for the absence of a member of the set (not as a substring).
    
    BEGINS_WITH : checks for a prefix.
    AttributeValueList can contain only one AttributeValue of type String or Binary (not a Number or a set). The target attribute of the comparison must be a String or Binary (not a Number or a set).
    
    IN : checks for exact matches.
    AttributeValueList can contain more than one AttributeValue of type String, Number, or Binary (not a set). The target attribute of the comparison must be of the same type and exact value to match. A String never matches a String set.
    
    BETWEEN : Greater than or equal to the first value, and less than or equal to the second value.
    AttributeValueList must contain two AttributeValue elements of the same type, either String, Number, or Binary (not a set). A target attribute matches if the target value is greater than, or equal to, the first element and less than, or equal to, the second element. If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not compare to {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}
    
    For usage examples of AttributeValueList and ComparisonOperator, see Conditional Expressions in the Amazon DynamoDB Developer Guide.
    For backward compatibility with previous DynamoDB releases, the following parameters can be used instead of AttributeValueList and ComparisonOperator:
    
    Value - A value for DynamoDB to compare with an attribute.
    
    Exists - Causes DynamoDB to evaluate the value vefore attempting the conditional operation:
    
    If Exists is true, DynamoDB will check to see if that attribute??? value already exists in the table. If it is found, then the condition evaluates to true; otherwise the condition evaluate to false.
    
    If Exists is false, DynamoDB assumes that the attribute value does??? not exist in the table. If in fact the value does not exist, then the??? assumption is valid and the condition evaluates to true. If the value is found, despite the assumption that it does not exist, the condition evaluates to false.???
    
    Even though DynamoDB continues to accept the Value and Exists parameters, they are now deprecated. We recommend that you use AttributeValueList and ComparisonOperator instead, since they allow you to constuct a much wider range of conditions.
    The Value and Exists parameters are incompatible with AttributeValueList and ComparisonOperator. If you attempt to use both sets of parameters at once, DynamoDB will throw a ValidationException.
    Returns:
    A reference to this updated object so that method calls can be chained together.
  - addExpectedEntry
```
public PutItemRequest addExpectedEntry(String key,
                              ExpectedAttributeValue value)
```
    A map of attribute/condition pairs. This is the conditional block for the PutItem operation.
    Each element of Expected consists of an attribute name, a comparison operator, and one or more values. DynamoDB compares the attribute with the value(s) you supplied, using the comparison operator. For each Expected element, the result of the evaluation is either true or false.
    If you specify more than one element in the Expected map, then by default all of the conditions must evaluate to true. In other words, the conditions are ANDed together. (You can use the ConditionalOperator parameter to OR the conditions instead. If you do this, then at least one of the conditions must evaluate to true, rather than all of them.)
    If the Expected map evaluates to true, then the conditional operation succeeds; otherwise, it fails.
    Each item in Expected represents an attribute name for DynamoDB to check, along with an AttributeValueList and a ComparisonOperator:
    - AttributeValueList - One or more values to evaluate against the supplied attribute. The number of values in the list depends on the ComparisonOperator being used.
      For type Number, value comparisons are numeric.
      String value comparisons for greater than, equals, or less than are based on ASCII character code values. For example, a is greater than A, and aa is greater than B. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
      For Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values, for example when evaluating query expressions.
    - ComparisonOperator - A comparator for evaluating attributes in the AttributeValueList. When performing the comparison, DynamoDB uses strongly consistent reads.
      The following comparison operators are available:
      EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
      The following are descriptions of each comparison operator.
      
      EQ : Equal.
      AttributeValueList can contain only one AttributeValue of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not equal {"NS":["6", "2", "1"]}.
      
      NE : Not equal.
      AttributeValueList can contain only one AttributeValue of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not equal {"NS":["6", "2", "1"]}.
      
      LE : Less than or equal.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
      
      LT : Less than.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
      
      GE : Greater than or equal.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
      
      GT : Greater than.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not equal {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}.
      
      NOT_NULL : The attribute exists.
      
      NULL : The attribute does not exist.
      
      CONTAINS : checks for a subsequence, or value in a set.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for a substring match. If the target attribute of the comparison is Binary, then the operation looks for a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for a member of the set (not as a substring).
      
      NOT_CONTAINS : checks for absence of a subsequence, or absence of a value in a set.
      AttributeValueList can contain only one AttributeValue of type String, Number, or Binary (not a set). If the target attribute of the comparison is a String, then the operation checks for the absence of a substring match. If the target attribute of the comparison is Binary, then the operation checks for the absence of a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS", "NS", or "BS"), then the operation checks for the absence of a member of the set (not as a substring).
      
      BEGINS_WITH : checks for a prefix.
      AttributeValueList can contain only one AttributeValue of type String or Binary (not a Number or a set). The target attribute of the comparison must be a String or Binary (not a Number or a set).
      
      IN : checks for exact matches.
      AttributeValueList can contain more than one AttributeValue of type String, Number, or Binary (not a set). The target attribute of the comparison must be of the same type and exact value to match. A String never matches a String set.
      
      BETWEEN : Greater than or equal to the first value, and less than or equal to the second value.
      AttributeValueList must contain two AttributeValue elements of the same type, either String, Number, or Binary (not a set). A target attribute matches if the target value is greater than, or equal to, the first element and less than, or equal to, the second element. If an item contains an AttributeValue of a different type than the one specified in the request, the value does not match. For example, {"S":"6"} does not compare to {"N":"6"}. Also, {"N":"6"} does not compare to {"NS":["6", "2", "1"]}
    For usage examples of AttributeValueList and ComparisonOperator, see Conditional Expressions in the Amazon DynamoDB Developer Guide.
    For backward compatibility with previous DynamoDB releases, the following parameters can be used instead of AttributeValueList and ComparisonOperator:
    - Value - A value for DynamoDB to compare with an attribute.
    - Exists - Causes DynamoDB to evaluate the value vefore attempting the conditional operation:
      
      If Exists is true, DynamoDB will check to see if that attribute??? value already exists in the table. If it is found, then the condition evaluates to true; otherwise the condition evaluate to false.
      
      If Exists is false, DynamoDB assumes that the attribute value does??? not exist in the table. If in fact the value does not exist, then the??? assumption is valid and the condition evaluates to true. If the value is found, despite the assumption that it does not exist, the condition evaluates to false.???
    Even though DynamoDB continues to accept the Value and Exists parameters, they are now deprecated. We recommend that you use AttributeValueList and ComparisonOperator instead, since they allow you to constuct a much wider range of conditions.
    The Value and Exists parameters are incompatible with AttributeValueList and ComparisonOperator. If you attempt to use both sets of parameters at once, DynamoDB will throw a ValidationException.
    The method adds a new key-value pair into Expected parameter, and returns a reference to this object so that method calls can be chained together.
    Parameters:
    key - The key of the entry to be added into Expected.
    value - The corresponding value of the entry to be added into Expected.
  - clearExpectedEntries
```
public PutItemRequest clearExpectedEntries()
```
    Removes all the entries added into Expected.
    Returns a reference to this object so that method calls can be chained together.
  - getReturnValues
```
public String getReturnValues()
```
    Use ReturnValues if you want to get the item attributes as they appeared before they were updated with the PutItem request. For PutItem, the valid values are:
    - NONE - If ReturnValues is not specified, or if its value is NONE, then nothing is returned. (This is the default for ReturnValues.)
    - ALL_OLD - If PutItem overwrote an attribute name-value pair, then the content of the old item is returned.
    Constraints:
    Allowed Values: NONE, ALL_OLD, UPDATED_OLD, ALL_NEW, UPDATED_NEW
    Returns:
    Use ReturnValues if you want to get the item attributes as they appeared before they were updated with the PutItem request. For PutItem, the valid values are:
    
    NONE - If ReturnValues is not specified, or if its value is NONE, then nothing is returned. (This is the default for ReturnValues.)
    
    ALL_OLD - If PutItem overwrote an attribute name-value pair, then the content of the old item is returned.
    See Also:
    ReturnValue
  - setReturnValues
```
public void setReturnValues(String returnValues)
```
    Use ReturnValues if you want to get the item attributes as they appeared before they were updated with the PutItem request. For PutItem, the valid values are:
    - NONE - If ReturnValues is not specified, or if its value is NONE, then nothing is returned. (This is the default for ReturnValues.)
    - ALL_OLD - If PutItem overwrote an attribute name-value pair, then the content of the old item is returned.
    Constraints:
    Allowed Values: NONE, ALL_OLD, UPDATED_OLD, ALL_NEW, UPDATED_NEW
    Parameters:
    returnValues - Use ReturnValues if you want to get the item attributes as they appeared before they were updated with the PutItem request. For PutItem, the valid values are:
    
    NONE - If ReturnValues is not specified, or if its value is NONE, then nothing is returned. (This is the default for ReturnValues.)
    
    ALL_OLD - If PutItem overwrote an attribute name-value pair, then the content of the old item is returned.
    See Also:
    ReturnValue
  - withReturnValues
```
public PutItemRequest withReturnValues(String returnValues)
```
    Use ReturnValues if you want to get the item attributes as they appeared before they were updated with the PutItem request. For PutItem, the valid values are:
    - NONE - If ReturnValues is not specified, or if its value is NONE, then nothing is returned. (This is the default for ReturnValues.)
    - ALL_OLD - If PutItem overwrote an attribute name-value pair, then the content of the old item is returned.
    Returns a reference to this object so that method calls can be chained together.
    Constraints:
    Allowed Values: NONE, ALL_OLD, UPDATED_OLD, ALL_NEW, UPDATED_NEW
    Parameters:
    returnValues - Use ReturnValues if you want to get the item attributes as they appeared before they were updated with the PutItem request. For PutItem, the valid values are:
    
    NONE - If ReturnValues is not specified, or if its value is NONE, then nothing is returned. (This is the default for ReturnValues.)
    
    ALL_OLD - If PutItem overwrote an attribute name-value pair, then the content of the old item is returned.
    Returns:
    A reference to this updated object so that method calls can be chained together.
    See Also:
    ReturnValue
  - setReturnValues
```
public void setReturnValues(ReturnValue returnValues)
```
    Use ReturnValues if you want to get the item attributes as they appeared before they were updated with the PutItem request. For PutItem, the valid values are:
    - NONE - If ReturnValues is not specified, or if its value is NONE, then nothing is returned. (This is the default for ReturnValues.)
    - ALL_OLD - If PutItem overwrote an attribute name-value pair, then the content of the old item is returned.
    Constraints:
    Allowed Values: NONE, ALL_OLD, UPDATED_OLD, ALL_NEW, UPDATED_NEW
    Parameters:
    returnValues - Use ReturnValues if you want to get the item attributes as they appeared before they were updated with the PutItem request. For PutItem, the valid values are:
    
    NONE - If ReturnValues is not specified, or if its value is NONE, then nothing is returned. (This is the default for ReturnValues.)
    
    ALL_OLD - If PutItem overwrote an attribute name-value pair, then the content of the old item is returned.
    See Also:
    ReturnValue
  - withReturnValues
```
public PutItemRequest withReturnValues(ReturnValue returnValues)
```
    Use ReturnValues if you want to get the item attributes as they appeared before they were updated with the PutItem request. For PutItem, the valid values are:
    - NONE - If ReturnValues is not specified, or if its value is NONE, then nothing is returned. (This is the default for ReturnValues.)
    - ALL_OLD - If PutItem overwrote an attribute name-value pair, then the content of the old item is returned.
    Returns a reference to this object so that method calls can be chained together.
    Constraints:
    Allowed Values: NONE, ALL_OLD, UPDATED_OLD, ALL_NEW, UPDATED_NEW
    Parameters:
    returnValues - Use ReturnValues if you want to get the item attributes as they appeared before they were updated with the PutItem request. For PutItem, the valid values are:
    
    NONE - If ReturnValues is not specified, or if its value is NONE, then nothing is returned. (This is the default for ReturnValues.)
    
    ALL_OLD - If PutItem overwrote an attribute name-value pair, then the content of the old item is returned.
    Returns:
    A reference to this updated object so that method calls can be chained together.
    See Also:
    ReturnValue
  - getReturnConsumedCapacity
```
public String getReturnConsumedCapacity()
```
    If set to TOTAL, the response includes ConsumedCapacity data for tables and indexes. If set to INDEXES, the response includes ConsumedCapacity for indexes. If set to NONE (the default), ConsumedCapacity is not included in the response.
    Constraints:
    Allowed Values: INDEXES, TOTAL, NONE
    
    Returns:
    If set to TOTAL, the response includes ConsumedCapacity data for tables and indexes. If set to INDEXES, the response includes ConsumedCapacity for indexes. If set to NONE (the default), ConsumedCapacity is not included in the response.
    See Also:
    ReturnConsumedCapacity
  - setReturnConsumedCapacity
```
public void setReturnConsumedCapacity(String returnConsumedCapacity)
```
    If set to TOTAL, the response includes ConsumedCapacity data for tables and indexes. If set to INDEXES, the response includes ConsumedCapacity for indexes. If set to NONE (the default), ConsumedCapacity is not included in the response.
    Constraints:
    Allowed Values: INDEXES, TOTAL, NONE
    
    Parameters:
    returnConsumedCapacity - If set to TOTAL, the response includes ConsumedCapacity data for tables and indexes. If set to INDEXES, the response includes ConsumedCapacity for indexes. If set to NONE (the default), ConsumedCapacity is not included in the response.
    See Also:
    ReturnConsumedCapacity
  - withReturnConsumedCapacity
```
public PutItemRequest withReturnConsumedCapacity(String returnConsumedCapacity)
```
    If set to TOTAL, the response includes ConsumedCapacity data for tables and indexes. If set to INDEXES, the response includes ConsumedCapacity for indexes. If set to NONE (the default), ConsumedCapacity is not included in the response.
    Returns a reference to this object so that method calls can be chained together.
    Constraints:
    Allowed Values: INDEXES, TOTAL, NONE
    
    Parameters:
    returnConsumedCapacity - If set to TOTAL, the response includes ConsumedCapacity data for tables and indexes. If set to INDEXES, the response includes ConsumedCapacity for indexes. If set to NONE (the default), ConsumedCapacity is not included in the response.
    
    Returns:
    A reference to this updated object so that method calls can be chained together.
    See Also:
    ReturnConsumedCapacity
  - setReturnConsumedCapacity
```
public void setReturnConsumedCapacity(ReturnConsumedCapacity returnConsumedCapacity)
```
    If set to TOTAL, the response includes ConsumedCapacity data for tables and indexes. If set to INDEXES, the response includes ConsumedCapacity for indexes. If set to NONE (the default), ConsumedCapacity is not included in the response.
    Constraints:
    Allowed Values: INDEXES, TOTAL, NONE
    
    Parameters:
    returnConsumedCapacity - If set to TOTAL, the response includes ConsumedCapacity data for tables and indexes. If set to INDEXES, the response includes ConsumedCapacity for indexes. If set to NONE (the default), ConsumedCapacity is not included in the response.
    See Also:
    ReturnConsumedCapacity
  - withReturnConsumedCapacity
```
public PutItemRequest withReturnConsumedCapacity(ReturnConsumedCapacity returnConsumedCapacity)
```
    If set to TOTAL, the response includes ConsumedCapacity data for tables and indexes. If set to INDEXES, the response includes ConsumedCapacity for indexes. If set to NONE (the default), ConsumedCapacity is not included in the response.
    Returns a reference to this object so that method calls can be chained together.
    Constraints:
    Allowed Values: INDEXES, TOTAL, NONE
    
    Parameters:
    returnConsumedCapacity - If set to TOTAL, the response includes ConsumedCapacity data for tables and indexes. If set to INDEXES, the response includes ConsumedCapacity for indexes. If set to NONE (the default), ConsumedCapacity is not included in the response.
    
    Returns:
    A reference to this updated object so that method calls can be chained together.
    See Also:
    ReturnConsumedCapacity
  - getReturnItemCollectionMetrics
```
public String getReturnItemCollectionMetrics()
```
    If set to SIZE, statistics about item collections, if any, that were modified during the operation are returned in the response. If set to NONE (the default), no statistics are returned.
    Constraints:
    Allowed Values: SIZE, NONE
    
    Returns:
    If set to SIZE, statistics about item collections, if any, that were modified during the operation are returned in the response. If set to NONE (the default), no statistics are returned.
    See Also:
    ReturnItemCollectionMetrics
  - setReturnItemCollectionMetrics
```
public void setReturnItemCollectionMetrics(String returnItemCollectionMetrics)
```
    If set to SIZE, statistics about item collections, if any, that were modified during the operation are returned in the response. If set to NONE (the default), no statistics are returned.
    Constraints:
    Allowed Values: SIZE, NONE
    
    Parameters:
    returnItemCollectionMetrics - If set to SIZE, statistics about item collections, if any, that were modified during the operation are returned in the response. If set to NONE (the default), no statistics are returned.
    See Also:
    ReturnItemCollectionMetrics
  - withReturnItemCollectionMetrics
```
public PutItemRequest withReturnItemCollectionMetrics(String returnItemCollectionMetrics)
```
    If set to SIZE, statistics about item collections, if any, that were modified during the operation are returned in the response. If set to NONE (the default), no statistics are returned.
    Returns a reference to this object so that method calls can be chained together.
    Constraints:
    Allowed Values: SIZE, NONE
    
    Parameters:
    returnItemCollectionMetrics - If set to SIZE, statistics about item collections, if any, that were modified during the operation are returned in the response. If set to NONE (the default), no statistics are returned.
    
    Returns:
    A reference to this updated object so that method calls can be chained together.
    See Also:
    ReturnItemCollectionMetrics
  - setReturnItemCollectionMetrics
```
public void setReturnItemCollectionMetrics(ReturnItemCollectionMetrics returnItemCollectionMetrics)
```
    If set to SIZE, statistics about item collections, if any, that were modified during the operation are returned in the response. If set to NONE (the default), no statistics are returned.
    Constraints:
    Allowed Values: SIZE, NONE
    
    Parameters:
    returnItemCollectionMetrics - If set to SIZE, statistics about item collections, if any, that were modified during the operation are returned in the response. If set to NONE (the default), no statistics are returned.
    See Also:
    ReturnItemCollectionMetrics
  - withReturnItemCollectionMetrics
```
public PutItemRequest withReturnItemCollectionMetrics(ReturnItemCollectionMetrics returnItemCollectionMetrics)
```
    If set to SIZE, statistics about item collections, if any, that were modified during the operation are returned in the response. If set to NONE (the default), no statistics are returned.
    Returns a reference to this object so that method calls can be chained together.
    Constraints:
    Allowed Values: SIZE, NONE
    
    Parameters:
    returnItemCollectionMetrics - If set to SIZE, statistics about item collections, if any, that were modified during the operation are returned in the response. If set to NONE (the default), no statistics are returned.
    
    Returns:
    A reference to this updated object so that method calls can be chained together.
    See Also:
    ReturnItemCollectionMetrics
  - getConditionalOperator
```
public String getConditionalOperator()
```
    A logical operator to apply to the conditions in the Expected map:
    - AND - If all of the conditions evaluate to true, then the entire map evaluates to true.
    - OR - If at least one of the conditions evaluate to true, then the entire map evaluates to true.
    If you omit ConditionalOperator, then AND is the default.
    The operation will succeed only if the entire map evaluates to true.
    Constraints:
    Allowed Values: AND, OR
    Returns:
    A logical operator to apply to the conditions in the Expected map:
    
    AND - If all of the conditions evaluate to true, then the entire map evaluates to true.
    
    OR - If at least one of the conditions evaluate to true, then the entire map evaluates to true.
    
    If you omit ConditionalOperator, then AND is the default.
    The operation will succeed only if the entire map evaluates to true.
    See Also:
    ConditionalOperator
  - setConditionalOperator
```
public void setConditionalOperator(String conditionalOperator)
```
    A logical operator to apply to the conditions in the Expected map:
    - AND - If all of the conditions evaluate to true, then the entire map evaluates to true.
    - OR - If at least one of the conditions evaluate to true, then the entire map evaluates to true.
    If you omit ConditionalOperator, then AND is the default.
    The operation will succeed only if the entire map evaluates to true.
    Constraints:
    Allowed Values: AND, OR
    Parameters:
    conditionalOperator - A logical operator to apply to the conditions in the Expected map:
    
    AND - If all of the conditions evaluate to true, then the entire map evaluates to true.
    
    OR - If at least one of the conditions evaluate to true, then the entire map evaluates to true.
    
    If you omit ConditionalOperator, then AND is the default.
    The operation will succeed only if the entire map evaluates to true.
    See Also:
    ConditionalOperator
  - withConditionalOperator
```
public PutItemRequest withConditionalOperator(String conditionalOperator)
```
    A logical operator to apply to the conditions in the Expected map:
    - AND - If all of the conditions evaluate to true, then the entire map evaluates to true.
    - OR - If at least one of the conditions evaluate to true, then the entire map evaluates to true.
    If you omit ConditionalOperator, then AND is the default.
    The operation will succeed only if the entire map evaluates to true.
    Returns a reference to this object so that method calls can be chained together.
    Constraints:
    Allowed Values: AND, OR
    Parameters:
    conditionalOperator - A logical operator to apply to the conditions in the Expected map:
    
    AND - If all of the conditions evaluate to true, then the entire map evaluates to true.
    
    OR - If at least one of the conditions evaluate to true, then the entire map evaluates to true.
    
    If you omit ConditionalOperator, then AND is the default.
    The operation will succeed only if the entire map evaluates to true.
    Returns:
    A reference to this updated object so that method calls can be chained together.
    See Also:
    ConditionalOperator
  - setConditionalOperator
```
public void setConditionalOperator(ConditionalOperator conditionalOperator)
```
    A logical operator to apply to the conditions in the Expected map:
    - AND - If all of the conditions evaluate to true, then the entire map evaluates to true.
    - OR - If at least one of the conditions evaluate to true, then the entire map evaluates to true.
    If you omit ConditionalOperator, then AND is the default.
    The operation will succeed only if the entire map evaluates to true.
    Constraints:
    Allowed Values: AND, OR
    Parameters:
    conditionalOperator - A logical operator to apply to the conditions in the Expected map:
    
    AND - If all of the conditions evaluate to true, then the entire map evaluates to true.
    
    OR - If at least one of the conditions evaluate to true, then the entire map evaluates to true.
    
    If you omit ConditionalOperator, then AND is the default.
    The operation will succeed only if the entire map evaluates to true.
    See Also:
    ConditionalOperator
  - withConditionalOperator
```
public PutItemRequest withConditionalOperator(ConditionalOperator conditionalOperator)
```
    A logical operator to apply to the conditions in the Expected map:
    - AND - If all of the conditions evaluate to true, then the entire map evaluates to true.
    - OR - If at least one of the conditions evaluate to true, then the entire map evaluates to true.
    If you omit ConditionalOperator, then AND is the default.
    The operation will succeed only if the entire map evaluates to true.
    Returns a reference to this object so that method calls can be chained together.
    Constraints:
    Allowed Values: AND, OR
    Parameters:
    conditionalOperator - A logical operator to apply to the conditions in the Expected map:
    
    AND - If all of the conditions evaluate to true, then the entire map evaluates to true.
    
    OR - If at least one of the conditions evaluate to true, then the entire map evaluates to true.
    
    If you omit ConditionalOperator, then AND is the default.
    The operation will succeed only if the entire map evaluates to true.
    Returns:
    A reference to this updated object so that method calls can be chained together.
    See Also:
    ConditionalOperator
  - toString
```
public String toString()
```
    Returns a string representation of this object; useful for testing and debugging.
    
    Overrides:
    
    toString in class Object
    
    Returns:
    A string representation of this object.
    See Also:
    Object.toString()
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - equals
```
public boolean equals(Object obj)
```
    Overrides:
    
    equals in class Object

Class PutItemRequest

Field Summary

Fields inherited from class com.amazonaws.AmazonWebServiceRequest

Constructor Summary

Method Summary

Methods inherited from class com.amazonaws.AmazonWebServiceRequest

Methods inherited from class java.lang.Object

Constructor Detail

PutItemRequest

PutItemRequest

PutItemRequest

PutItemRequest

Method Detail

getTableName

setTableName

withTableName

getItem

setItem

withItem

addItemEntry

clearItemEntries

getExpected

setExpected

withExpected

addExpectedEntry

clearExpectedEntries

getReturnValues

setReturnValues

withReturnValues

setReturnValues

withReturnValues

getReturnConsumedCapacity

setReturnConsumedCapacity

withReturnConsumedCapacity

setReturnConsumedCapacity

withReturnConsumedCapacity

getReturnItemCollectionMetrics

setReturnItemCollectionMetrics

withReturnItemCollectionMetrics

setReturnItemCollectionMetrics

withReturnItemCollectionMetrics

getConditionalOperator

setConditionalOperator

withConditionalOperator

setConditionalOperator

withConditionalOperator

toString

hashCode

equals