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/*
* Copyright 2012-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance with
* the License. A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions
* and limitations under the License.
*/
package com.amazonaws.services.dynamodbv2;
import javax.annotation.Generated;
import com.amazonaws.*;
import com.amazonaws.regions.*;
import com.amazonaws.services.dynamodbv2.model.*;
/**
* Interface for accessing Amazon DynamoDB Streams.
*
* Note: Do not directly implement this interface, new methods are added to it regularly. Extend from
* {@link com.amazonaws.services.dynamodbv2.AbstractAmazonDynamoDBStreams} instead.
*
*
* Amazon DynamoDB
*
* Amazon DynamoDB Streams provides API actions for accessing streams and processing stream records. To learn more about
* application development with Streams, see Capturing Table Activity with
* DynamoDB Streams in the Amazon DynamoDB Developer Guide.
*
*/
@Generated("com.amazonaws:aws-java-sdk-code-generator")
public interface AmazonDynamoDBStreams {
/**
* The region metadata service name for computing region endpoints. You can use this value to retrieve metadata
* (such as supported regions) of the service.
*
* @see RegionUtils#getRegionsForService(String)
*/
String ENDPOINT_PREFIX = "streams.dynamodb";
/**
* Overrides the default endpoint for this client ("https://streams.dynamodb.us-east-1.amazonaws.com"). Callers can
* use this method to control which AWS region they want to work with.
*
* Callers can pass in just the endpoint (ex: "streams.dynamodb.us-east-1.amazonaws.com") or a full URL, including
* the protocol (ex: "https://streams.dynamodb.us-east-1.amazonaws.com"). If the protocol is not specified here, the
* default protocol from this client's {@link ClientConfiguration} will be used, which by default is HTTPS.
*
* For more information on using AWS regions with the AWS SDK for Java, and a complete list of all available
* endpoints for all AWS services, see:
* http://developer.amazonwebservices.com/connect/entry.jspa?externalID=3912
*
* This method is not threadsafe. An endpoint should be configured when the client is created and before any
* service requests are made. Changing it afterwards creates inevitable race conditions for any service requests in
* transit or retrying.
*
* @param endpoint
* The endpoint (ex: "streams.dynamodb.us-east-1.amazonaws.com") or a full URL, including the protocol (ex:
* "https://streams.dynamodb.us-east-1.amazonaws.com") of the region specific AWS endpoint this client will
* communicate with.
* @deprecated use {@link AwsClientBuilder#setEndpointConfiguration(AwsClientBuilder.EndpointConfiguration)} for
* example:
* {@code builder.setEndpointConfiguration(new EndpointConfiguration(endpoint, signingRegion));}
*/
@Deprecated
void setEndpoint(String endpoint);
/**
* An alternative to {@link AmazonDynamoDBStreams#setEndpoint(String)}, sets the regional endpoint for this client's
* service calls. Callers can use this method to control which AWS region they want to work with.
*
* By default, all service endpoints in all regions use the https protocol. To use http instead, specify it in the
* {@link ClientConfiguration} supplied at construction.
*
* This method is not threadsafe. A region should be configured when the client is created and before any service
* requests are made. Changing it afterwards creates inevitable race conditions for any service requests in transit
* or retrying.
*
* @param region
* The region this client will communicate with. See {@link Region#getRegion(com.amazonaws.regions.Regions)}
* for accessing a given region. Must not be null and must be a region where the service is available.
*
* @see Region#getRegion(com.amazonaws.regions.Regions)
* @see Region#createClient(Class, com.amazonaws.auth.AWSCredentialsProvider, ClientConfiguration)
* @see Region#isServiceSupported(String)
* @deprecated use {@link AwsClientBuilder#setRegion(String)}
*/
@Deprecated
void setRegion(Region region);
/**
*
* Returns information about a stream, including the current status of the stream, its Amazon Resource Name (ARN),
* the composition of its shards, and its corresponding DynamoDB table.
*
*
*
* You can call DescribeStream at a maximum rate of 10 times per second.
*
*
*
* Each shard in the stream has a SequenceNumberRange associated with it. If the
* SequenceNumberRange has a StartingSequenceNumber but no
* EndingSequenceNumber, then the shard is still open (able to receive more stream records). If both
* StartingSequenceNumber and EndingSequenceNumber are present, then that shard is closed
* and can no longer receive more data.
*
*
* @param describeStreamRequest
* Represents the input of a DescribeStream operation.
* @return Result of the DescribeStream operation returned by the service.
* @throws ResourceNotFoundException
* The operation tried to access a nonexistent stream.
* @throws InternalServerErrorException
* An error occurred on the server side.
* @sample AmazonDynamoDBStreams.DescribeStream
* @see AWS API Documentation
*/
DescribeStreamResult describeStream(DescribeStreamRequest describeStreamRequest);
/**
*
* Retrieves the stream records from a given shard.
*
*
* Specify a shard iterator using the ShardIterator parameter. The shard iterator specifies the
* position in the shard from which you want to start reading stream records sequentially. If there are no stream
* records available in the portion of the shard that the iterator points to, GetRecords returns an
* empty list. Note that it might take multiple calls to get to a portion of the shard that contains stream records.
*
*
*
* GetRecords can retrieve a maximum of 1 MB of data or 1000 stream records, whichever comes first.
*
*
*
* @param getRecordsRequest
* Represents the input of a GetRecords operation.
* @return Result of the GetRecords operation returned by the service.
* @throws ResourceNotFoundException
* The operation tried to access a nonexistent stream.
* @throws LimitExceededException
* Your request rate is too high. The AWS SDKs for DynamoDB automatically retry requests that receive this
* exception. Your request is eventually successful, unless your retry queue is too large to finish. Reduce
* the frequency of requests and use exponential backoff. For more information, go to Error Retries and Exponential Backoff in the Amazon DynamoDB Developer Guide.
* @throws InternalServerErrorException
* An error occurred on the server side.
* @throws ExpiredIteratorException
* The shard iterator has expired and can no longer be used to retrieve stream records. A shard iterator
* expires 15 minutes after it is retrieved using the GetShardIterator action.
* @throws TrimmedDataAccessException
* The operation attempted to read past the oldest stream record in a shard.
*
* In DynamoDB Streams, there is a 24 hour limit on data retention. Stream records whose age exceeds this
* limit are subject to removal (trimming) from the stream. You might receive a TrimmedDataAccessException
* if:
*
*
* -
*
* You request a shard iterator with a sequence number older than the trim point (24 hours).
*
*
* -
*
* You obtain a shard iterator, but before you use the iterator in a GetRecords request, a
* stream record in the shard exceeds the 24 hour period and is trimmed. This causes the iterator to access
* a record that no longer exists.
*
*
* @sample AmazonDynamoDBStreams.GetRecords
* @see AWS
* API Documentation
*/
GetRecordsResult getRecords(GetRecordsRequest getRecordsRequest);
/**
*
* Returns a shard iterator. A shard iterator provides information about how to retrieve the stream records from
* within a shard. Use the shard iterator in a subsequent GetRecords request to read the stream records
* from the shard.
*
*
*
* A shard iterator expires 15 minutes after it is returned to the requester.
*
*
*
* @param getShardIteratorRequest
* Represents the input of a GetShardIterator operation.
* @return Result of the GetShardIterator operation returned by the service.
* @throws ResourceNotFoundException
* The operation tried to access a nonexistent stream.
* @throws InternalServerErrorException
* An error occurred on the server side.
* @throws TrimmedDataAccessException
* The operation attempted to read past the oldest stream record in a shard.
*
* In DynamoDB Streams, there is a 24 hour limit on data retention. Stream records whose age exceeds this
* limit are subject to removal (trimming) from the stream. You might receive a TrimmedDataAccessException
* if:
*
*
* -
*
* You request a shard iterator with a sequence number older than the trim point (24 hours).
*
*
* -
*
* You obtain a shard iterator, but before you use the iterator in a GetRecords request, a
* stream record in the shard exceeds the 24 hour period and is trimmed. This causes the iterator to access
* a record that no longer exists.
*
*
* @sample AmazonDynamoDBStreams.GetShardIterator
* @see AWS API Documentation
*/
GetShardIteratorResult getShardIterator(GetShardIteratorRequest getShardIteratorRequest);
/**
*
* Returns an array of stream ARNs associated with the current account and endpoint. If the TableName
* parameter is present, then ListStreams will return only the streams ARNs for that table.
*
*
*
* You can call ListStreams at a maximum rate of 5 times per second.
*
*
*
* @param listStreamsRequest
* Represents the input of a ListStreams operation.
* @return Result of the ListStreams operation returned by the service.
* @throws ResourceNotFoundException
* The operation tried to access a nonexistent stream.
* @throws InternalServerErrorException
* An error occurred on the server side.
* @sample AmazonDynamoDBStreams.ListStreams
* @see AWS
* API Documentation
*/
ListStreamsResult listStreams(ListStreamsRequest listStreamsRequest);
/**
* Shuts down this client object, releasing any resources that might be held open. This is an optional method, and
* callers are not expected to call it, but can if they want to explicitly release any open resources. Once a client
* has been shutdown, it should not be used to make any more requests.
*/
void shutdown();
/**
* Returns additional metadata for a previously executed successful request, typically used for debugging issues
* where a service isn't acting as expected. This data isn't considered part of the result data returned by an
* operation, so it's available through this separate, diagnostic interface.
*
* Response metadata is only cached for a limited period of time, so if you need to access this extra diagnostic
* information for an executed request, you should use this method to retrieve it as soon as possible after
* executing a request.
*
* @param request
* The originally executed request.
*
* @return The response metadata for the specified request, or null if none is available.
*/
ResponseMetadata getCachedResponseMetadata(AmazonWebServiceRequest request);
}