Using StringSets Amazon DynamoDB Android

Question

I have an android application which uses Amazon DynamoDB. My table of users look like this:

@DynamoDBTable(tableName = Const.TEST_TABLE_NAME)
public static class User {
    private int userID;
    private String username;
    private String password;
    private String email;

    @DynamoDBHashKey(attributeName = "userID")
    public int getUserID() {
        return userID;
    }

    public void setUserID(int userID) {
        this.userID = userID;
    }

    @DynamoDBAttribute(attributeName = "username")
    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    @DynamoDBAttribute(attributeName = "password")
    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    @DynamoDBAttribute(attributeName = "email")
    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

}

And everything works fine. My question is, if I have a string set in my table how can I insert it to my code? Using String[] doesn't work( I've tried adding:

    private String[] favourites;

    @DynamoDBAttribute(attributeName = "favourites")
    public String[] getFavourites() {
        return favourites;
    }

    public void setFavourites(String[] favourites) {
        this.favourites = favourites;
    }

) but it keeps throwing errors. Can somebody help me?

Answer 1

The AWS Mobile SDK for Android simplifies the use of AWS services like Amazon Cognito and Amazon DynamoDB, making it easier for developers to construct mobile apps. Previously, you had to utilise the DynamoDB Object Mapper to get data (or use the service APIs). Then you had to establish a model for DynamoDB in your mobile code that mirrored the model defined in the table. There was additional code to write and test as a result of this. With SDK v2.4.4, we're introducing a new functionality called the Document API. You no longer need to use the DynamoDB Object Mapper with the Document API; instead, you can access specific fields within data objects directly.