| /******************************************************************************* |
| * Copyright (c) 2006, 2013 Oracle and/or its affiliates. All rights reserved. |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0 |
| * which accompanies this distribution. |
| * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html |
| * and the Eclipse Distribution License is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * Contributors: |
| * Oracle - initial API and implementation |
| * |
| ******************************************************************************/ |
| package org.eclipse.persistence.tools.mapping.orm.dom; |
| |
| import java.util.List; |
| import org.w3c.dom.Element; |
| |
| /** |
| * The external form of an entity listener that is defined on a mapped superclass or entity. |
| * |
| * @see MappedSuperClassEntity |
| * |
| * @version 2.6 |
| */ |
| final class EntityEntityListener extends AbstractEntityListener { |
| |
| /** |
| * Creates a new <code>EntityEntityListener</code>. |
| * |
| * @param parent The parent of this external form |
| * @param index The position of the element within the list of children with the same type owned by the parent |
| */ |
| EntityEntityListener(MappedSuperClassEntity parent, int index) { |
| super(parent, index); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public Element addSelf(String elementName, List<String> elementNamesOrder) { |
| return getParent().addChildrenTree(ENTITY_LISTENERS, ENTITY_LISTENER); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public Element getElement() { |
| |
| Element parentElement = getParentElement(); |
| |
| if (parentElement == null) { |
| return null; |
| } |
| |
| Element element = getChild(parentElement, ENTITY_LISTENERS); |
| |
| if (element == null) { |
| return null; |
| } |
| |
| return getChild(element, ENTITY_LISTENER, getIndex()); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void removeSelf() { |
| |
| Element parentElement = getParentElement(); |
| |
| if (parentElement == null) { |
| return; |
| } |
| |
| Element element = getChild(parentElement, ENTITY_LISTENERS); |
| |
| if (element != null) { |
| removeChild(element, ENTITY_LISTENER, getIndex()); |
| |
| // Remove "entity-listeners" if it has no children |
| if (!hasAnyChildren(element)) { |
| remove(parentElement, element); |
| } |
| } |
| } |
| } |