software.amazon.awssdk.extensions.dynamodb.mappingclient.operations

Class GetItemOperation<T>

java.lang.Object

software.amazon.awssdk.extensions.dynamodb.mappingclient.operations.GetItemOperation<T>

All Implemented Interfaces:

BatchableReadOperation, CommonOperation<T,GetItemRequest,GetItemResponse,T>, TableOperation<T,GetItemRequest,GetItemResponse,T>, TransactableReadOperation<T>

public class GetItemOperation<T>
extends Object
implements TableOperation<T,GetItemRequest,GetItemResponse,T>, BatchableReadOperation, TransactableReadOperation<T>

Method Summary

Modifier and Type	Method and Description
Function<GetItemRequest,CompletableFuture<GetItemResponse>>	asyncServiceCall(DynamoDbAsyncClient dynamoDbAsyncClient) Provides a function for making the low level non-blocking asynchronous SDK call to DynamoDb.
Boolean	consistentRead()
static <T> GetItemOperation<T>	create(GetItemEnhancedRequest request)
GetItemRequest	generateRequest(TableSchema<T> tableSchema, OperationContext context, MapperExtension mapperExtension) This method generates the request that needs to be sent to a low level DynamoDbClient.
TransactGetItem	generateTransactGetItem(TableSchema<T> tableSchema, OperationContext operationContext, MapperExtension mapperExtension)
Key	key()
Function<GetItemRequest,GetItemResponse>	serviceCall(DynamoDbClient dynamoDbClient) Provides a function for making the low level synchronous SDK call to DynamoDb.
T	transformResponse(GetItemResponse response, TableSchema<T> tableSchema, OperationContext context, MapperExtension mapperExtension) Takes the response object returned by the actual DynamoDb call and maps it into a higher level abstracted result object.

Methods inherited from class java.lang.Object

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

Methods inherited from interface software.amazon.awssdk.extensions.dynamodb.mappingclient.TableOperation

executeOnPrimaryIndex, executeOnPrimaryIndexAsync

Methods inherited from interface software.amazon.awssdk.extensions.dynamodb.mappingclient.CommonOperation

execute, executeAsync

Method Detail

create

public static <T> GetItemOperation<T> create(GetItemEnhancedRequest request)

consistentRead

public Boolean consistentRead()

Specified by:

consistentRead in interface BatchableReadOperation

key

public Key key()

Specified by:

key in interface BatchableReadOperation

generateRequest

public GetItemRequest generateRequest(TableSchema<T> tableSchema,
                                      OperationContext context,
                                      MapperExtension mapperExtension)

Description copied from interface: CommonOperation

This method generates the request that needs to be sent to a low level DynamoDbClient.

Specified by:

generateRequest in interface CommonOperation<T,GetItemRequest,GetItemResponse,T>

Parameters:

tableSchema - A TableSchema that maps the table to a modelled object.

context - An object containing the context, or target, of the command execution.

mapperExtension - A MapperExtension that may modify the request of this operation. A null value here will result in no modifications.

Returns:

A request that can be used as an argument to a DynamoDbClient call to perform the operation.

transformResponse

public T transformResponse(GetItemResponse response,
                           TableSchema<T> tableSchema,
                           OperationContext context,
                           MapperExtension mapperExtension)

Description copied from interface: CommonOperation

Takes the response object returned by the actual DynamoDb call and maps it into a higher level abstracted result object.

Specified by:

transformResponse in interface CommonOperation<T,GetItemRequest,GetItemResponse,T>

Parameters:

response - The response object returned by the DynamoDb call for this operation.

tableSchema - A TableSchema that maps the table to a modelled object.

context - An object containing the context, or target, of the command execution.

mapperExtension - A MapperExtension that may modify the result of this operation. A null value here will result in no modifications.

Returns:

A high level result object as specified by the implementation of this operation.

serviceCall

public Function<GetItemRequest,GetItemResponse> serviceCall(DynamoDbClient dynamoDbClient)

Description copied from interface: CommonOperation

Provides a function for making the low level synchronous SDK call to DynamoDb.

Specified by:

serviceCall in interface CommonOperation<T,GetItemRequest,GetItemResponse,T>

Parameters:

dynamoDbClient - A low level DynamoDbClient to make the call against.

Returns:

A function that calls DynamoDb with a provided request object and returns the response object.

asyncServiceCall

public Function<GetItemRequest,CompletableFuture<GetItemResponse>> asyncServiceCall(DynamoDbAsyncClient dynamoDbAsyncClient)

Description copied from interface: CommonOperation

Provides a function for making the low level non-blocking asynchronous SDK call to DynamoDb.

Specified by:

asyncServiceCall in interface CommonOperation<T,GetItemRequest,GetItemResponse,T>

Parameters:

dynamoDbAsyncClient - A low level DynamoDbAsyncClient to make the call against.

Returns:

A function that calls DynamoDb with a provided request object and returns the response object.

generateTransactGetItem

public TransactGetItem generateTransactGetItem(TableSchema<T> tableSchema,
                                               OperationContext operationContext,
                                               MapperExtension mapperExtension)

Specified by:

generateTransactGetItem in interface TransactableReadOperation<T>