How to use

compareForChange

method

in

org.eclipse.persistence.eis.mappings.EISOneToManyMappingHelper

/**
 * INTERNAL:
 * Compare the changes between two collections. Element comparisons are
 * made using identity and, when appropriate, the value of the element's key
 * for the Map container.
 */
public ChangeRecord compareForChange(Object clone, Object backup, ObjectChangeSet owner, AbstractSession session) {
  if (isForeignKeyRelationship()) {
    if ((this.getAttributeValueFromObject(clone) != null) && (!this.isAttributeValueInstantiatedOrChanged(clone))) {
      return null;// never instantiated - no changes to report
    }
    return (new EISOneToManyMappingHelper(this)).compareForChange(clone, backup, owner, session);
  } else {
    return super.compareForChange(clone, backup, owner, session);
  }
}

/**
 * INTERNAL:
 * Compare the changes between two collections. Element comparisons are
 * made using identity and, when appropriate, the value of the element's key
 * for the Map container.
 */
@Override
public ChangeRecord compareForChange(Object clone, Object backup, ObjectChangeSet owner, AbstractSession session) {
  if (isForeignKeyRelationship()) {
    if ((this.getAttributeValueFromObject(clone) != null) && (!this.isAttributeValueInstantiatedOrChanged(clone))) {
      return null;// never instantiated - no changes to report
    }
    return (new EISOneToManyMappingHelper(this)).compareForChange(clone, backup, owner, session);
  } else {
    return super.compareForChange(clone, backup, owner, session);
  }
}

/**
 * INTERNAL:
 * Compare the changes between two collections. Element comparisons are
 * made using identity and, when appropriate, the value of the element's key
 * for the Map container.
 */
@Override
public ChangeRecord compareForChange(Object clone, Object backup, ObjectChangeSet owner, AbstractSession session) {
  if (isForeignKeyRelationship()) {
    if ((this.getAttributeValueFromObject(clone) != null) && (!this.isAttributeValueInstantiatedOrChanged(clone))) {
      return null;// never instantiated - no changes to report
    }
    return (new EISOneToManyMappingHelper(this)).compareForChange(clone, backup, owner, session);
  } else {
    return super.compareForChange(clone, backup, owner, session);
  }
}