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: package org.netbeans.modules.uml.core.eventframework;
043:
044: /**
045: * @author sumitabhk
046: *
047: */
048: public class EventState {
049:
050: private IEventDispatcher m_Dispatch = null;
051:
052: /**
053: *
054: */
055: private EventState() {
056: super ();
057: }
058:
059: /**
060: * The constructor for EventState. Handles the call to the dispatcher's
061: * PushEventContext() function.
062: */
063: public EventState(IEventDispatcher dispatcher, String state) {
064: m_Dispatch = dispatcher;
065: if (m_Dispatch != null) {
066: m_Dispatch.pushEventContext(state);
067: }
068: }
069:
070: /**
071: * Pushes the passed-in context onto the passed-in dispatcher.
072: *
073: * @param dispatcher[in] The dispatcher to push the context onto
074: * @param context[in] The context to push
075: *
076: * @return HRESULT
077: */
078: public EventState(IEventDispatcher dispatcher, IEventContext context) {
079: m_Dispatch = dispatcher;
080: if (m_Dispatch != null) {
081: m_Dispatch.pushEventContext3(context);
082: }
083: }
084:
085: public EventState(String dispatcherName, String state) {
086: EventDispatchRetriever ret = EventDispatchRetriever.instance();
087: m_Dispatch = (IEventDispatcher) ret
088: .getDispatcher(dispatcherName);
089: if (m_Dispatch != null) {
090: m_Dispatch.pushEventContext(state);
091: }
092: }
093:
094: public void existState() {
095: try {
096: m_Dispatch.popEventContext();
097: } catch (NullPointerException e) {
098: // I do not want to do anything. If m_Dispatch
099: // is NULL then there is nothing to do.
100: }
101: }
102:
103: }
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