Querying a Local Secondary Index using the AWS SDK for Java

Now, we are going to see how to query a local secondary index.

Getting ready

To perform this operation, you can use the IDE of your choice. To perform a query operation, you should first add items using the AWS Console or SDK, as we have seen in the earlier chapters.

How to do it…

The Query API on a Local Secondary Index is similar to the query API on a DynamoDB table. Perform the following operations in order to query the index:

1. Create an instance of the DynamoDB class and initialize it with the credentials. Also, get the table from DynamoDB on which you wish to perform the query operation:

       AmazonDynamoDBClient client = new AmazonDynamoDBClient(
           new ProfileCredentialsProvider());
       client.setRegion(Region.getRegion(Regions.US_EAST_1));
       DynamoDB dynamoDB = new DynamoDB(client);
       Table product = dynamoDB.getTable("product");

2. Get the index to be queried on:

   Index idMnfrIndex = product.getIndex("IdManufacturerIndex");

3. Now...