Using StringSets Amazon DynamoDB Android -

i have android application uses amazon dynamodb. table of users 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 works fine. question is, if have string set in table how can insert 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;     } 

) keeps throwing errors. can me?

you working set of string. if using default conversionscheme part of dynamodbmapperconfig (which if don't specify own configuration, default used), need change type java's set<string> , mapper marshall appropriately.

private set<string> favourites;  @dynamodbattribute(attributename = "favourites") public set<string> getfavourites() {     return favourites; }