Now, we are going to see how to scan items from the table using the object persistence model.
To perform this recipe, you should have set up the project, as described in the earlier recipes, specifically, pom.xml
, dependencies, and the object model.
Let's scan items from the table using the object persistence model:
Create an instance of the
DynamoDB client
class and initiate it with the credential's profile. You can also set the region if you have created the table in a specific region:AmazonDynamoDBClient client = new AmazonDynamoDBClient( new ProfileCredentialsProvider()); client.setRegion(Region.getRegion(Regions.US_EAST_1));
Create an instance of the
DynamoDBMapper
class and initiate it with the client that we created earlier:DynamoDBMapper mapper = new DynamoDBMapper(client);
Scanning allows us to put filter conditions. Here, suppose that we want to get all the items whose type...