UpdateTable.java - AWS Code Sample


UpdateTable.java demonstrates how to update a DynamoDB table (change provisioned throughput).

/* Copyright 2010-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved. This file is 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/ 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 aws.example.dynamodb; import com.amazonaws.services.dynamodbv2.AmazonDynamoDB; import com.amazonaws.services.dynamodbv2.AmazonDynamoDBClientBuilder; import com.amazonaws.services.dynamodbv2.model.ProvisionedThroughput; import com.amazonaws.AmazonServiceException; /** * Update a DynamoDB table (change provisioned throughput). * * Takes the name of the table to update, the read capacity and the write * capacity to use. * * This code expects that you have AWS credentials set up per: * http://docs.aws.amazon.com/java-sdk/latest/developer-guide/setup-credentials.html */ public class UpdateTable { public static void main(String[] args) { final String USAGE = "\n" + "Usage:\n" + " UpdateTable <table> <read> <write>\n\n" + "Where:\n" + " table - the table to put the item in.\n" + " read - the new read capacity of the table.\n" + " write - the new write capacity of the table.\n\n" + "Example:\n" + " UpdateTable HelloTable 16 10\n"; if (args.length < 3) { System.out.println(USAGE); System.exit(1); } String table_name = args[0]; Long read_capacity = Long.parseLong(args[1]); Long write_capacity = Long.parseLong(args[2]); System.out.format( "Updating %s with new provisioned throughput values\n", table_name); System.out.format("Read capacity : %d\n", read_capacity); System.out.format("Write capacity : %d\n", write_capacity); ProvisionedThroughput table_throughput = new ProvisionedThroughput( read_capacity, write_capacity); final AmazonDynamoDB ddb = AmazonDynamoDBClientBuilder.defaultClient(); try { ddb.updateTable(table_name, table_throughput); } catch (AmazonServiceException e) { System.err.println(e.getErrorMessage()); System.exit(1); } System.out.println("Done!"); } }

Sample Details

Service: dynamodb

Last tested: 2018-01-15

Author: soo-aws

Type: full-example