KeysAndAttributes (AWS SDK for Android

java.lang.Object
- com.amazonaws.services.dynamodbv2.model.KeysAndAttributes

All Implemented Interfaces:

Serializable
```
public class KeysAndAttributes
extends Object
implements Serializable
```
Represents a set of primary keys and, for each key, the attributes to retrieve from the table.

See Also:
Serialized Form

Constructor Summary

Constructors
Constructor and Description

KeysAndAttributes()

Constructors
Constructor and Description
`KeysAndAttributes()`

Method Summary

Methods
Modifier and Type	Method and Description
`KeysAndAttributes`	`addExpressionAttributeNamesEntry(String key, String value)` Sets the value of the ExpressionAttributeNames property for this object.
`KeysAndAttributes`	`clearExpressionAttributeNamesEntries()` Removes all the entries added into ExpressionAttributeNames.
`boolean`	`equals(Object obj)`
`List<String>`	`getAttributesToGet()` One or more attributes to retrieve from the table or index.
`Boolean`	`getConsistentRead()` The consistency of a read operation.
`Map<String,String>`	`getExpressionAttributeNames()` Returns the value of the ExpressionAttributeNames property for this object.
`List<Map<String,AttributeValue>>`	`getKeys()` The primary key attribute values that define the items and the attributes associated with the items.
`String`	`getProjectionExpression()` Returns the value of the ProjectionExpression property for this object.
`int`	`hashCode()`
`Boolean`	`isConsistentRead()` The consistency of a read operation.
`void`	`setAttributesToGet(Collection<String> attributesToGet)` One or more attributes to retrieve from the table or index.
`void`	`setConsistentRead(Boolean consistentRead)` The consistency of a read operation.
`void`	`setExpressionAttributeNames(Map<String,String> expressionAttributeNames)` Sets the value of the ExpressionAttributeNames property for this object.
`void`	`setKeys(Collection<Map<String,AttributeValue>> keys)` The primary key attribute values that define the items and the attributes associated with the items.
`void`	`setProjectionExpression(String projectionExpression)` Sets the value of the ProjectionExpression property for this object.
`String`	`toString()` Returns a string representation of this object; useful for testing and debugging.
`KeysAndAttributes`	`withAttributesToGet(Collection<String> attributesToGet)` One or more attributes to retrieve from the table or index.
`KeysAndAttributes`	`withAttributesToGet(String... attributesToGet)` One or more attributes to retrieve from the table or index.
`KeysAndAttributes`	`withConsistentRead(Boolean consistentRead)` The consistency of a read operation.
`KeysAndAttributes`	`withExpressionAttributeNames(Map<String,String> expressionAttributeNames)` Sets the value of the ExpressionAttributeNames property for this object.
`KeysAndAttributes`	`withKeys(Collection<Map<String,AttributeValue>> keys)` The primary key attribute values that define the items and the attributes associated with the items.
`KeysAndAttributes`	`withKeys(Map<String,AttributeValue>... keys)` The primary key attribute values that define the items and the attributes associated with the items.
`KeysAndAttributes`	`withProjectionExpression(String projectionExpression)` Sets the value of the ProjectionExpression property for this object.

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

- Constructor Detail
  - KeysAndAttributes
```
public KeysAndAttributes()
```
- Method Detail
  - getKeys
```
public List<Map<String,AttributeValue>> getKeys()
```
    The primary key attribute values that define the items and the attributes associated with the items.
    Constraints:
    Length: 1 - 100
    
    Returns:
    The primary key attribute values that define the items and the attributes associated with the items.
  - setKeys
```
public void setKeys(Collection<Map<String,AttributeValue>> keys)
```
    The primary key attribute values that define the items and the attributes associated with the items.
    Constraints:
    Length: 1 - 100
    
    Parameters:
    keys - The primary key attribute values that define the items and the attributes associated with the items.
  - withKeys
```
public KeysAndAttributes withKeys(Map<String,AttributeValue>... keys)
```
    The primary key attribute values that define the items and the attributes associated with the items.
    Returns a reference to this object so that method calls can be chained together.
    Constraints:
    Length: 1 - 100
    
    Parameters:
    keys - The primary key attribute values that define the items and the attributes associated with the items.
    
    Returns:
    A reference to this updated object so that method calls can be chained together.
  - withKeys
```
public KeysAndAttributes withKeys(Collection<Map<String,AttributeValue>> keys)
```
    The primary key attribute values that define the items and the attributes associated with the items.
    Returns a reference to this object so that method calls can be chained together.
    Constraints:
    Length: 1 - 100
    
    Parameters:
    keys - The primary key attribute values that define the items and the attributes associated with the items.
    
    Returns:
    A reference to this updated object so that method calls can be chained together.
  - getAttributesToGet
```
public List<String> getAttributesToGet()
```
    One or more attributes to retrieve from the table or index. If no attribute names are specified then all attributes will be returned. If any of the specified attributes are not found, they will not appear in the result.
    Constraints:
    Length: 1 -
    
    Returns:
    One or more attributes to retrieve from the table or index. If no attribute names are specified then all attributes will be returned. If any of the specified attributes are not found, they will not appear in the result.
  - setAttributesToGet
```
public void setAttributesToGet(Collection<String> attributesToGet)
```
    One or more attributes to retrieve from the table or index. If no attribute names are specified then all attributes will be returned. If any of the specified attributes are not found, they will not appear in the result.
    Constraints:
    Length: 1 -
    
    Parameters:
    attributesToGet - One or more attributes to retrieve from the table or index. If no attribute names are specified then all attributes will be returned. If any of the specified attributes are not found, they will not appear in the result.
  - withAttributesToGet
```
public KeysAndAttributes withAttributesToGet(String... attributesToGet)
```
    One or more attributes to retrieve from the table or index. If no attribute names are specified then all attributes will be returned. If any of the specified attributes are not found, they will not appear in the result.
    Returns a reference to this object so that method calls can be chained together.
    Constraints:
    Length: 1 -
    
    Parameters:
    attributesToGet - One or more attributes to retrieve from the table or index. If no attribute names are specified then all attributes will be returned. If any of the specified attributes are not found, they will not appear in the result.
    
    Returns:
    A reference to this updated object so that method calls can be chained together.
  - withAttributesToGet
```
public KeysAndAttributes withAttributesToGet(Collection<String> attributesToGet)
```
    One or more attributes to retrieve from the table or index. If no attribute names are specified then all attributes will be returned. If any of the specified attributes are not found, they will not appear in the result.
    Returns a reference to this object so that method calls can be chained together.
    Constraints:
    Length: 1 -
    
    Parameters:
    attributesToGet - One or more attributes to retrieve from the table or index. If no attribute names are specified then all attributes will be returned. If any of the specified attributes are not found, they will not appear in the result.
    
    Returns:
    A reference to this updated object so that method calls can be chained together.
  - isConsistentRead
```
public Boolean isConsistentRead()
```
    The consistency of a read operation. If set to true, then a strongly consistent read is used; otherwise, an eventually consistent read is used.
    
    Returns:
    The consistency of a read operation. If set to true, then a strongly consistent read is used; otherwise, an eventually consistent read is used.
  - setConsistentRead
```
public void setConsistentRead(Boolean consistentRead)
```
    The consistency of a read operation. If set to true, then a strongly consistent read is used; otherwise, an eventually consistent read is used.
    
    Parameters:
    consistentRead - The consistency of a read operation. If set to true, then a strongly consistent read is used; otherwise, an eventually consistent read is used.
  - withConsistentRead
```
public KeysAndAttributes withConsistentRead(Boolean consistentRead)
```
    The consistency of a read operation. If set to true, then a strongly consistent read is used; otherwise, an eventually consistent read is used.
    Returns a reference to this object so that method calls can be chained together.
    
    Parameters:
    consistentRead - The consistency of a read operation. If set to true, then a strongly consistent read is used; otherwise, an eventually consistent read is used.
    
    Returns:
    A reference to this updated object so that method calls can be chained together.
  - getConsistentRead
```
public Boolean getConsistentRead()
```
    The consistency of a read operation. If set to true, then a strongly consistent read is used; otherwise, an eventually consistent read is used.
    
    Returns:
    The consistency of a read operation. If set to true, then a strongly consistent read is used; otherwise, an eventually consistent read is used.
  - getProjectionExpression
```
public String getProjectionExpression()
```
    Returns the value of the ProjectionExpression property for this object.
    
    Returns:
    The value of the ProjectionExpression property for this object.
  - setProjectionExpression
```
public void setProjectionExpression(String projectionExpression)
```
    Sets the value of the ProjectionExpression property for this object.
    
    Parameters:
    projectionExpression - The new value for the ProjectionExpression property for this object.
  - withProjectionExpression
```
public KeysAndAttributes withProjectionExpression(String projectionExpression)
```
    Sets the value of the ProjectionExpression property for this object.
    Returns a reference to this object so that method calls can be chained together.
    
    Parameters:
    projectionExpression - The new value for the ProjectionExpression property for this object.
    
    Returns:
    A reference to this updated object so that method calls can be chained together.
  - getExpressionAttributeNames
```
public Map<String,String> getExpressionAttributeNames()
```
    Returns the value of the ExpressionAttributeNames property for this object.
    
    Returns:
    The value of the ExpressionAttributeNames property for this object.
  - setExpressionAttributeNames
```
public void setExpressionAttributeNames(Map<String,String> expressionAttributeNames)
```
    Sets the value of the ExpressionAttributeNames property for this object.
    
    Parameters:
    expressionAttributeNames - The new value for the ExpressionAttributeNames property for this object.
  - withExpressionAttributeNames
```
public KeysAndAttributes withExpressionAttributeNames(Map<String,String> expressionAttributeNames)
```
    Sets the value of the ExpressionAttributeNames property for this object.
    Returns a reference to this object so that method calls can be chained together.
    
    Parameters:
    expressionAttributeNames - The new value for the ExpressionAttributeNames property for this object.
    
    Returns:
    A reference to this updated object so that method calls can be chained together.
  - addExpressionAttributeNamesEntry
```
public KeysAndAttributes addExpressionAttributeNamesEntry(String key,
                                                 String value)
```
    Sets the value of the ExpressionAttributeNames property for this object.
    The method adds a new key-value pair into ExpressionAttributeNames 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 ExpressionAttributeNames.
    value - The corresponding value of the entry to be added into ExpressionAttributeNames.
  - clearExpressionAttributeNamesEntries
```
public KeysAndAttributes clearExpressionAttributeNamesEntries()
```
    Removes all the entries added into ExpressionAttributeNames.
    Returns a reference to this object so that method calls can be chained together.
  - 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 KeysAndAttributes

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

KeysAndAttributes

Method Detail

getKeys

setKeys

withKeys

withKeys

getAttributesToGet

setAttributesToGet

withAttributesToGet

withAttributesToGet

isConsistentRead

setConsistentRead

withConsistentRead

getConsistentRead

getProjectionExpression

setProjectionExpression

withProjectionExpression

getExpressionAttributeNames

setExpressionAttributeNames

withExpressionAttributeNames

addExpressionAttributeNamesEntry

clearExpressionAttributeNamesEntries

toString

hashCode

equals