001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
028: * Microsystems, Inc. All Rights Reserved.
029: *
030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041: /*
042: * Class.java
043: *
044: * Created on May 3, 2004, 5:52 PM
045: */
046:
047: package org.netbeans.modules.visualweb.ejb.nodes;
048:
049: import org.netbeans.modules.visualweb.ejb.datamodel.EjbDataModel;
050: import org.netbeans.modules.visualweb.ejb.datamodel.EjbDataModelListener;
051: import org.netbeans.modules.visualweb.ejb.datamodel.EjbInfo;
052: import org.netbeans.modules.visualweb.ejb.datamodel.EjbGroup;
053: import java.util.Collections;
054: import org.openide.nodes.Children;
055: import org.openide.nodes.Node;
056:
057: /**
058: * The child nodes for EJB Group, which are grouping nodes:
059: * - Session Beans
060: * - Entity Beans
061: * - Message Driven Beans
062: *
063: * @author cao
064: */
065: public class EjbGroupNodeChildren extends Children.Keys implements
066: EjbDataModelListener {
067: private EjbGroup ejbGroup;
068:
069: public EjbGroupNodeChildren(EjbGroup ejbGroup) {
070: this .ejbGroup = ejbGroup;
071: }
072:
073: protected org.openide.nodes.Node[] createNodes(Object key) {
074: // For each key/session bean, we'll create a session bean node
075: if (key instanceof EjbInfo) {
076:
077: Node node = new SessionBeanNode(ejbGroup, (EjbInfo) key);
078: return new Node[] { node };
079: } else
080: return null;
081: }
082:
083: protected void addNotify() {
084: // Set the keys for the children
085:
086: super .addNotify();
087: if (ejbGroup.getSessionBeans() != null
088: && !ejbGroup.getSessionBeans().isEmpty())
089: setKeys(ejbGroup.getSessionBeans());
090: else
091: setKeys(Collections.EMPTY_SET);
092:
093: // Listen on the changes in the EjbDataModel
094: EjbDataModel.getInstance().addListener(this );
095: }
096:
097: protected void removeNotify() {
098: setKeys(Collections.EMPTY_SET);
099: super .removeNotify();
100:
101: // No need to listen on the data model any more
102: EjbDataModel.getInstance().removeListener(this );
103: }
104:
105: public void groupAdded(
106: org.netbeans.modules.visualweb.ejb.datamodel.EjbDataModelEvent modelEvent) {
107: // Handled by EjbRootNodeChildren
108: }
109:
110: public void groupChanged(
111: org.netbeans.modules.visualweb.ejb.datamodel.EjbDataModelEvent modelEvent) {
112: if (modelEvent.getEjbGroup() == ejbGroup)
113: setKeys(ejbGroup.getSessionBeans());
114: }
115:
116: public void groupDeleted(
117: org.netbeans.modules.visualweb.ejb.datamodel.EjbDataModelEvent modelEvent) {
118: // Handled by EjbRootNodeChildren
119: }
120:
121: public void groupsDeleted() {
122: // Handled by EjbRootNodeChildren
123: }
124:
125: }
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