com.amazonaws.services.dynamodbv2.document.internal

Class GetItemImpl

java.lang.Object

com.amazonaws.services.dynamodbv2.document.internal.GetItemImpl

All Implemented Interfaces:

GetItemApi

public class GetItemImpl
extends Object
implements GetItemApi

The implementation for GetItemApi.

Constructor Summary

Constructors

Constructor and Description
GetItemImpl(AmazonDynamoDB client, Table table)

Method Summary

Modifier and Type	Method and Description
Item	getItem(GetItemSpec spec) Retrieves an item by specifying all the details.
Item	getItem(KeyAttribute... primaryKey) Retrieves an item by primary key.
Item	getItem(PrimaryKey primaryKey) Retrieves an item by primary key; or null if the item doesn't exist.
Item	getItem(PrimaryKey primaryKey, String projectionExpression, Map<String,String> nameMap) Retrieves an item using projection expression.
Item	getItem(String hashKeyName, Object hashKeyValue) Retrieves an item by primary key when the primary key is a hash-only key.
Item	getItem(String hashKeyName, Object hashKeyValue, String projectionExpression, Map<String,String> nameMap) Retrieves an item via the specified hash key using projection expression.
Item	getItem(String hashKeyName, Object hashKeyValue, String rangeKeyName, Object rangeKeyValue) Retrieves an item by primary key when the primary key consists of both a hash-key and a range-key.
Item	getItem(String hashKeyName, Object hashKeyValue, String rangeKeyName, Object rangeKeyValue, String projectionExpression, Map<String,String> nameMap) Retrieves an item via the specified hash key and range key using projection expression.
GetItemOutcome	getItemOutcome(GetItemSpec spec) Retrieves an item and the associated information by specifying all the details.
GetItemOutcome	getItemOutcome(KeyAttribute... primaryKeyComponents) Retrieves an item and the associated information by primary key when the primary key is a hash-only key.
GetItemOutcome	getItemOutcome(PrimaryKey primaryKey) Retrieves an item and the associated information by primary key.
GetItemOutcome	getItemOutcome(PrimaryKey primaryKey, String projectionExpression, Map<String,String> nameMap) Retrieves an item and the associated information using projection expression.
GetItemOutcome	getItemOutcome(String hashKeyName, Object hashKeyValue) Retrieves an item and the associated information by primary key when the primary key is a hash-only key.
GetItemOutcome	getItemOutcome(String hashKeyName, Object hashKeyValue, String projectionExpression, Map<String,String> nameMap) Retrieves an item and the associated information via the specified hash key using projection expression.
GetItemOutcome	getItemOutcome(String hashKeyName, Object hashKeyValue, String rangeKeyName, Object rangeKeyValue) Retrieves an item and the associated information by primary key when the primary key consists of both a hash-key and a range-key.
GetItemOutcome	getItemOutcome(String hashKeyName, Object hashKeyValue, String rangeKeyName, Object rangeKeyValue, String projectionExpression, Map<String,String> nameMap) Retrieves an item and the associated information via the specified hash key and range key using projection expression.
Table	getTable() Returns the owning table.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GetItemImpl

public GetItemImpl(AmazonDynamoDB client,
                   Table table)

Method Detail

getItemOutcome

public GetItemOutcome getItemOutcome(KeyAttribute... primaryKeyComponents)

Description copied from interface: GetItemApi

Retrieves an item and the associated information by primary key when the primary key is a hash-only key. Incurs network access.

Specified by:

getItemOutcome in interface GetItemApi

Returns:

the (non-null) result of item retrieval.

getItemOutcome

public GetItemOutcome getItemOutcome(PrimaryKey primaryKey)

Description copied from interface: GetItemApi

Retrieves an item and the associated information by primary key. Incurs network access.

Specified by:

getItemOutcome in interface GetItemApi

Returns:

the (non-null) result of item retrieval.

getItemOutcome

public GetItemOutcome getItemOutcome(PrimaryKey primaryKey,
                                     String projectionExpression,
                                     Map<String,String> nameMap)

Description copied from interface: GetItemApi

Retrieves an item and the associated information using projection expression. Incurs network access.

Specified by:

getItemOutcome in interface GetItemApi

projectionExpression - projection expression, example: "a.b , c[0].e"

nameMap - actual values for the attribute-name place holders; can be null if there is no attribute-name placeholder.

Returns:

the (non-null) result of item retrieval.

getItemOutcome

public GetItemOutcome getItemOutcome(GetItemSpec spec)

Description copied from interface: GetItemApi

Retrieves an item and the associated information by specifying all the details. Incurs network access.

Specified by:

getItemOutcome in interface GetItemApi

Returns:

the (non-null) result of item retrieval.

getItem

public Item getItem(GetItemSpec spec)

Description copied from interface: GetItemApi

Retrieves an item by specifying all the details. Incurs network access.

Specified by:

getItem in interface GetItemApi

Returns:

the retrieved item; or null if the item doesn't exist.

getItem

public Item getItem(KeyAttribute... primaryKey)

Description copied from interface: GetItemApi

Retrieves an item by primary key. Incurs network access.

Specified by:

getItem in interface GetItemApi

Returns:

the retrieved item; or null if the item doesn't exist.

getItem

public Item getItem(PrimaryKey primaryKey)

Description copied from interface: GetItemApi

Retrieves an item by primary key; or null if the item doesn't exist. Incurs network access.

Specified by:

getItem in interface GetItemApi

Returns:

the retrieved item; or null if the item doesn't exist.

getItem

public Item getItem(PrimaryKey primaryKey,
                    String projectionExpression,
                    Map<String,String> nameMap)

Description copied from interface: GetItemApi

Retrieves an item using projection expression. Incurs network access.

Specified by:

getItem in interface GetItemApi

projectionExpression - projection expression, example: "a.b , c[0].e"

nameMap - actual values for the attribute-name place holders; can be null if there is no attribute-name placeholder.

Returns:

the retrieved item; or null if the item doesn't exist.

getItemOutcome

public GetItemOutcome getItemOutcome(String hashKeyName,
                                     Object hashKeyValue)

Description copied from interface: GetItemApi

Retrieves an item and the associated information by primary key when the primary key is a hash-only key. Incurs network access.

Specified by:

getItemOutcome in interface GetItemApi

Returns:

the (non-null) result of item retrieval.

getItemOutcome

public GetItemOutcome getItemOutcome(String hashKeyName,
                                     Object hashKeyValue,
                                     String rangeKeyName,
                                     Object rangeKeyValue)

Description copied from interface: GetItemApi

Retrieves an item and the associated information by primary key when the primary key consists of both a hash-key and a range-key. Incurs network access.

Specified by:

getItemOutcome in interface GetItemApi

Returns:

the (non-null) result of item retrieval.

getItem

public Item getItem(String hashKeyName,
                    Object hashKeyValue)

Description copied from interface: GetItemApi

Retrieves an item by primary key when the primary key is a hash-only key. Incurs network access.

Specified by:

getItem in interface GetItemApi

Returns:

the retrieved item; or null if the item doesn't exist.

getItem

public Item getItem(String hashKeyName,
                    Object hashKeyValue,
                    String rangeKeyName,
                    Object rangeKeyValue)

Description copied from interface: GetItemApi

Retrieves an item by primary key when the primary key consists of both a hash-key and a range-key. Incurs network access.

Specified by:

getItem in interface GetItemApi

Returns:

the retrieved item; or null if the item doesn't exist.

getItemOutcome

public GetItemOutcome getItemOutcome(String hashKeyName,
                                     Object hashKeyValue,
                                     String projectionExpression,
                                     Map<String,String> nameMap)

Description copied from interface: GetItemApi

Retrieves an item and the associated information via the specified hash key using projection expression. Incurs network access.

Specified by:

getItemOutcome in interface GetItemApi

Returns:

the (non-null) result of item retrieval.

getItemOutcome

public GetItemOutcome getItemOutcome(String hashKeyName,
                                     Object hashKeyValue,
                                     String rangeKeyName,
                                     Object rangeKeyValue,
                                     String projectionExpression,
                                     Map<String,String> nameMap)

Description copied from interface: GetItemApi

Retrieves an item and the associated information via the specified hash key and range key using projection expression. Incurs network access.

Specified by:

getItemOutcome in interface GetItemApi

Returns:

the (non-null) result of item retrieval.

getItem

public Item getItem(String hashKeyName,
                    Object hashKeyValue,
                    String projectionExpression,
                    Map<String,String> nameMap)

Description copied from interface: GetItemApi

Retrieves an item via the specified hash key using projection expression. Incurs network access.

Specified by:

getItem in interface GetItemApi

Returns:

the retrieved item; or null if the item doesn't exist.

getItem

public Item getItem(String hashKeyName,
                    Object hashKeyValue,
                    String rangeKeyName,
                    Object rangeKeyValue,
                    String projectionExpression,
                    Map<String,String> nameMap)

Description copied from interface: GetItemApi

Retrieves an item via the specified hash key and range key using projection expression. Incurs network access.

Specified by:

getItem in interface GetItemApi

Returns:

the retrieved item; or null if the item doesn't exist.

getTable

public final Table getTable()

Returns the owning table.