Support of DynamoDB for Spring Data

@Configuration
@EnableDynamoDBRepositories(basePackages = "com.javasampleapproach.dynamodb.repo")
public class DynamoDBConfig {

    @Value("${amazon.dynamodb.endpoint}")
    private String dBEndpoint;

    @Value("${amazon.aws.accesskey}")
    private String accessKey;

    @Value("${amazon.aws.secretkey}")
    private String secretKey;

    @Bean
    public AmazonDynamoDB amazonDynamoDB() {
        AmazonDynamoDB dynamoDB = new AmazonDynamoDBClient(amazonAWSCredentials());

        if (!StringUtils.isNullOrEmpty(dBEndpoint)) {
            dynamoDB.setEndpoint(dBEndpoint);
        }

        return dynamoDB;
    }

    @Bean
    public AWSCredentials amazonAWSCredentials() {
        return new BasicAWSCredentials(accessKey, secretKey);
    }
}

public String findAll() {
        String result = "";
        Iterable<Customer> customers = repository.findAll();

        for (Customer cust : customers) {
            result += cust.toString() + "<br>";
        }

        return result;
    }

public String save() {
        // save a single Customer
        repository.save(new Customer("JSA-1", "Jack", "Smith"));

}

public String delete() {
        repository.delete(new Customer("JSA-1", "Jack", "Smith"));
        repository.deleteAll();
        return "Done";
    }