http://www.avaje.org/java8-parent/ebean-annotation: For open source java artifacts.
  • Rob Bygrave 
package io.ebean.annotation;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;


Specify that the elements of a OneToMany are private owned.


This means that if they are removed from the List/Set/Map they will be
deleted when their parent object is saved.




This could also be described as deleting orphans - in that beans removed from
the List/Set/Map will be deleted automatically when the parent bean is saved.
They are considered 'orphans' when they have been removed from the collection
in that they are no longer associated/linked to their parent bean.



/**
 * Specify that the elements of a OneToMany are private owned.
 * <p>
 * This means that if they are removed from the List/Set/Map they will be
 * deleted when their parent object is saved.
 * </p>
 * <p>
 * This could also be described as deleting orphans - in that beans removed from
 * the List/Set/Map will be deleted automatically when the parent bean is saved.
 * They are considered 'orphans' when they have been removed from the collection
 * in that they are no longer associated/linked to their parent bean.
 * </p>
 */
@Target({ElementType.FIELD, ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
public @interface PrivateOwned {

  
Set this to false if you don't want cascade REMOVE on this relationship.


That is, by default PrivateOwned implicitly adds a cascade REMOVE to the
relationship and if you don't want that you need to set this to false.



/**
   * Set this to false if you don't want cascade REMOVE on this relationship.
   * <p>
   * That is, by default PrivateOwned implicitly adds a cascade REMOVE to the
   * relationship and if you don't want that you need to set this to false.
   * </p>
   */
  boolean cascadeRemove() default true;

}