How to use multiple primary keys

Question

I created database, for my android app, witch has 16 tables. I want to use ORMlite mapping. The problem is that I didn't find examples where you have composite id(Multiple primary keys). For example I have table:

CREATE  TABLE IF NOT EXISTS `Tourist_Guide`.`Cultural_activity` (
  `City_Id` INT NOT NULL ,
  `activity_Id` INT NOT NULL ,
  `Cultural_activity_Id` INT NOT NULL AUTO_INCREMENT ,
  `Name_Of_Cultural_activity` VARCHAR(30) NOT NULL ,
  PRIMARY KEY (`Cultural_activity_Id`, `City_Id`, `activity_Id`) ,
  INDEX `fk_Cultural_activity_activity1` (`City_Id` ASC, `activity_Id` ASC) ,
  CONSTRAINT `fk_Cultural_activity_activity1`
    FOREIGN KEY (`City_Id` , `activity_Id` )
    REFERENCES `Tourist_Guide`.`activity` (`City_Id` , `activity_Id` )
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;

Can you, please, tell me how to map this table to class(how this class should look like), is that even possible?

Answer 1

You have to use the following annotation above each unique field:

@DatabaseField (uniqueCombo = true)

Here are the docs on uniqueCombo.