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

Class GetItem<T>

java.lang.Object

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

All Implemented Interfaces:

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

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

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	GetItem.Builder

Method Summary

Modifier and Type	Method and Description
static GetItem.Builder	builder()
boolean	equals(Object o)
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)
Boolean	getConsistentRead()
Key	getKey()
Function<GetItemRequest,GetItemResponse>	getServiceCall(DynamoDbClient dynamoDbClient) Provides a function for making the low level SDK call to DynamoDb.
int	hashCode()
static <T> GetItem<T>	of(Key key)
GetItem.Builder	toBuilder()
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, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

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

executeOnPrimaryIndex

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

execute

Method Detail

of

public static <T> GetItem<T> of(Key key)

builder

public static GetItem.Builder builder()

toBuilder

public GetItem.Builder toBuilder()

getConsistentRead

public Boolean getConsistentRead()

Specified by:

getConsistentRead in interface BatchableReadOperation

getKey

public Key getKey()

Specified by:

getKey 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.

getServiceCall

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

Description copied from interface: CommonOperation

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

Specified by:

getServiceCall 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.

generateTransactGetItem

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

Specified by:

generateTransactGetItem in interface TransactableReadOperation<T>

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object