com.amazonaws.services.dynamodb.model
Class ScanRequest

java.lang.Object
  com.amazonaws.AmazonWebServiceRequest
      com.amazonaws.services.dynamodb.model.ScanRequest

public class ScanRequest
extends AmazonWebServiceRequest

Container for the parameters to the Scan operation.

The Scan operation returns one or more items and its attributes by performing a full scan of a table. Limit the returned results by specifying a filter.

See Also:

AmazonDynamoDB.scan(ScanRequest)

Constructor Summary

ScanRequest()
Default constructor for a new ScanRequest object.

ScanRequest(String tableName)
Constructs a new ScanRequest object.

Method Summary

boolean	equals(Object obj)
List<String>	getAttributesToGet() Array of Attribute names.
Boolean	getCount() If set to true, Amazon DynamoDB returns a total number of items for the Scan operation, even if the operation has no matching items for the assigned filter.
Key	getExclusiveStartKey() Primary key of the item from which to continue an earlier scan.
Integer	getLimit() The maximum number of items to return.
Map<String,Condition>	getScanFilter() Evaluates the scan results and returns only the desired values.
String	getTableName() Returns the value of the TableName property for this object.
int	hashCode()
Boolean	isCount() If set to true, Amazon DynamoDB returns a total number of items for the Scan operation, even if the operation has no matching items for the assigned filter.
void	setAttributesToGet(Collection<String> attributesToGet) Array of Attribute names.
void	setCount(Boolean count) If set to true, Amazon DynamoDB returns a total number of items for the Scan operation, even if the operation has no matching items for the assigned filter.
void	setExclusiveStartKey(Key exclusiveStartKey) Primary key of the item from which to continue an earlier scan.
void	setLimit(Integer limit) The maximum number of items to return.
void	setScanFilter(Map<String,Condition> scanFilter) Evaluates the scan results and returns only the desired values.
void	setTableName(String tableName) Sets the value of the TableName property for this object.
String	toString() Returns a string representation of this object; useful for testing and debugging.
ScanRequest	withAttributesToGet(Collection<String> attributesToGet) Array of Attribute names.
ScanRequest	withAttributesToGet(String... attributesToGet) Array of Attribute names.
ScanRequest	withCount(Boolean count) If set to true, Amazon DynamoDB returns a total number of items for the Scan operation, even if the operation has no matching items for the assigned filter.
ScanRequest	withExclusiveStartKey(Key exclusiveStartKey) Primary key of the item from which to continue an earlier scan.
ScanRequest	withLimit(Integer limit) The maximum number of items to return.
ScanRequest	withScanFilter(Map<String,Condition> scanFilter) Evaluates the scan results and returns only the desired values.
ScanRequest	withTableName(String tableName) Sets the value of the TableName property for this object.

Methods inherited from class com.amazonaws.AmazonWebServiceRequest

copyPrivateRequestParameters, getRequestClientOptions, getRequestCredentials, setRequestCredentials

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ScanRequest

public ScanRequest()

Default constructor for a new ScanRequest object. Callers should use the setter or fluent setter (with...) methods to initialize this object after creating it.

ScanRequest

public ScanRequest(String tableName)

Constructs a new ScanRequest object. Callers should use the setter or fluent setter (with...) methods to initialize any additional object members.

Parameters:

tableName -

Method Detail

getTableName

public String getTableName()

Returns the value of the TableName property for this object.

Constraints:
Length: 3 - 255
Pattern: [a-zA-Z0-9_.-]+

Returns:

The value of the TableName property for this object.

setTableName

public void setTableName(String tableName)

Sets the value of the TableName property for this object.

Constraints:
Length: 3 - 255
Pattern: [a-zA-Z0-9_.-]+

Parameters:

tableName - The new value for the TableName property for this object.

withTableName

public ScanRequest withTableName(String tableName)

Sets the value of the TableName property for this object.

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 new value for the TableName property for this object.

Returns:

A reference to this updated object so that method calls can be chained together.

getAttributesToGet

public List<String> getAttributesToGet()

Array of Attribute names. If attribute names are not specified then all attributes will be returned. If some attributes are not found, they will not appear in the result.

Constraints:
Length: 1 -

Returns:

Array of Attribute names. If attribute names are not specified then all attributes will be returned. If some attributes are not found, they will not appear in the result.

setAttributesToGet

public void setAttributesToGet(Collection<String> attributesToGet)

Array of Attribute names. If attribute names are not specified then all attributes will be returned. If some attributes are not found, they will not appear in the result.

Constraints:
Length: 1 -

Parameters:

attributesToGet - Array of Attribute names. If attribute names are not specified then all attributes will be returned. If some attributes are not found, they will not appear in the result.

withAttributesToGet

public ScanRequest withAttributesToGet(String... attributesToGet)

Array of Attribute names. If attribute names are not specified then all attributes will be returned. If some 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 - Array of Attribute names. If attribute names are not specified then all attributes will be returned. If some 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 ScanRequest withAttributesToGet(Collection<String> attributesToGet)

Array of Attribute names. If attribute names are not specified then all attributes will be returned. If some 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 - Array of Attribute names. If attribute names are not specified then all attributes will be returned. If some 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.

getLimit

public Integer getLimit()

The maximum number of items to return. If Amazon DynamoDB hits this limit while scanning the table, it stops the scan and returns the matching values up to the limit, and a LastEvaluatedKey to apply in a subsequent operation to continue the scan. Also, if the scanned data set size exceeds 1MB before Amazon DynamoDB hits this limit, it stops the scan and returns the matching values up to the limit, and a LastEvaluatedKey to apply in a subsequent operation to continue the scan.

Constraints:
Range: 1 -

Returns:

The maximum number of items to return. If Amazon DynamoDB hits this limit while scanning the table, it stops the scan and returns the matching values up to the limit, and a LastEvaluatedKey to apply in a subsequent operation to continue the scan. Also, if the scanned data set size exceeds 1MB before Amazon DynamoDB hits this limit, it stops the scan and returns the matching values up to the limit, and a LastEvaluatedKey to apply in a subsequent operation to continue the scan.

setLimit

public void setLimit(Integer limit)

The maximum number of items to return. If Amazon DynamoDB hits this limit while scanning the table, it stops the scan and returns the matching values up to the limit, and a LastEvaluatedKey to apply in a subsequent operation to continue the scan. Also, if the scanned data set size exceeds 1MB before Amazon DynamoDB hits this limit, it stops the scan and returns the matching values up to the limit, and a LastEvaluatedKey to apply in a subsequent operation to continue the scan.

Constraints:
Range: 1 -

Parameters:

limit - The maximum number of items to return. If Amazon DynamoDB hits this limit while scanning the table, it stops the scan and returns the matching values up to the limit, and a LastEvaluatedKey to apply in a subsequent operation to continue the scan. Also, if the scanned data set size exceeds 1MB before Amazon DynamoDB hits this limit, it stops the scan and returns the matching values up to the limit, and a LastEvaluatedKey to apply in a subsequent operation to continue the scan.

withLimit

public ScanRequest withLimit(Integer limit)

The maximum number of items to return. If Amazon DynamoDB hits this limit while scanning the table, it stops the scan and returns the matching values up to the limit, and a LastEvaluatedKey to apply in a subsequent operation to continue the scan. Also, if the scanned data set size exceeds 1MB before Amazon DynamoDB hits this limit, it stops the scan and returns the matching values up to the limit, and a LastEvaluatedKey to apply in a subsequent operation to continue the scan.

Returns a reference to this object so that method calls can be chained together.

Constraints:
Range: 1 -

Parameters:

limit - The maximum number of items to return. If Amazon DynamoDB hits this limit while scanning the table, it stops the scan and returns the matching values up to the limit, and a LastEvaluatedKey to apply in a subsequent operation to continue the scan. Also, if the scanned data set size exceeds 1MB before Amazon DynamoDB hits this limit, it stops the scan and returns the matching values up to the limit, and a LastEvaluatedKey to apply in a subsequent operation to continue the scan.

Returns:

A reference to this updated object so that method calls can be chained together.

isCount

public Boolean isCount()

If set to true, Amazon DynamoDB returns a total number of items for the Scan operation, even if the operation has no matching items for the assigned filter. Do not set Count to true while providing a list of AttributesToGet, otherwise Amazon DynamoDB returns a validation error.

Returns:

If set to true, Amazon DynamoDB returns a total number of items for the Scan operation, even if the operation has no matching items for the assigned filter. Do not set Count to true while providing a list of AttributesToGet, otherwise Amazon DynamoDB returns a validation error.

setCount

public void setCount(Boolean count)

If set to true, Amazon DynamoDB returns a total number of items for the Scan operation, even if the operation has no matching items for the assigned filter. Do not set Count to true while providing a list of AttributesToGet, otherwise Amazon DynamoDB returns a validation error.

Parameters:

count - If set to true, Amazon DynamoDB returns a total number of items for the Scan operation, even if the operation has no matching items for the assigned filter. Do not set Count to true while providing a list of AttributesToGet, otherwise Amazon DynamoDB returns a validation error.

withCount

public ScanRequest withCount(Boolean count)

If set to true, Amazon DynamoDB returns a total number of items for the Scan operation, even if the operation has no matching items for the assigned filter. Do not set Count to true while providing a list of AttributesToGet, otherwise Amazon DynamoDB returns a validation error.

Returns a reference to this object so that method calls can be chained together.

Parameters:

count - If set to true, Amazon DynamoDB returns a total number of items for the Scan operation, even if the operation has no matching items for the assigned filter. Do not set Count to true while providing a list of AttributesToGet, otherwise Amazon DynamoDB returns a validation error.

Returns:

A reference to this updated object so that method calls can be chained together.

getCount

public Boolean getCount()

If set to true, Amazon DynamoDB returns a total number of items for the Scan operation, even if the operation has no matching items for the assigned filter. Do not set Count to true while providing a list of AttributesToGet, otherwise Amazon DynamoDB returns a validation error.

Returns:

If set to true, Amazon DynamoDB returns a total number of items for the Scan operation, even if the operation has no matching items for the assigned filter. Do not set Count to true while providing a list of AttributesToGet, otherwise Amazon DynamoDB returns a validation error.

getScanFilter

public Map<String,Condition> getScanFilter()

Evaluates the scan results and returns only the desired values.

Returns:

Evaluates the scan results and returns only the desired values.

setScanFilter

public void setScanFilter(Map<String,Condition> scanFilter)

Evaluates the scan results and returns only the desired values.

Parameters:

scanFilter - Evaluates the scan results and returns only the desired values.

withScanFilter

public ScanRequest withScanFilter(Map<String,Condition> scanFilter)

Evaluates the scan results and returns only the desired values.

Returns a reference to this object so that method calls can be chained together.

Parameters:

scanFilter - Evaluates the scan results and returns only the desired values.

Returns:

A reference to this updated object so that method calls can be chained together.

getExclusiveStartKey

public Key getExclusiveStartKey()

Primary key of the item from which to continue an earlier scan. An earlier scan might provide this value if that scan operation was interrupted before scanning the entire table; either because of the result set size or the Limit parameter. The LastEvaluatedKey can be passed back in a new scan request to continue the operation from that point.

Returns:

Primary key of the item from which to continue an earlier scan. An earlier scan might provide this value if that scan operation was interrupted before scanning the entire table; either because of the result set size or the Limit parameter. The LastEvaluatedKey can be passed back in a new scan request to continue the operation from that point.

setExclusiveStartKey

public void setExclusiveStartKey(Key exclusiveStartKey)

Primary key of the item from which to continue an earlier scan. An earlier scan might provide this value if that scan operation was interrupted before scanning the entire table; either because of the result set size or the Limit parameter. The LastEvaluatedKey can be passed back in a new scan request to continue the operation from that point.

Parameters:

exclusiveStartKey - Primary key of the item from which to continue an earlier scan. An earlier scan might provide this value if that scan operation was interrupted before scanning the entire table; either because of the result set size or the Limit parameter. The LastEvaluatedKey can be passed back in a new scan request to continue the operation from that point.

withExclusiveStartKey

public ScanRequest withExclusiveStartKey(Key exclusiveStartKey)

Primary key of the item from which to continue an earlier scan. An earlier scan might provide this value if that scan operation was interrupted before scanning the entire table; either because of the result set size or the Limit parameter. The LastEvaluatedKey can be passed back in a new scan request to continue the operation from that point.

Returns a reference to this object so that method calls can be chained together.

Parameters:

exclusiveStartKey - Primary key of the item from which to continue an earlier scan. An earlier scan might provide this value if that scan operation was interrupted before scanning the entire table; either because of the result set size or the Limit parameter. The LastEvaluatedKey can be passed back in a new scan request to continue the operation from that point.

Returns:

A reference to this updated 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