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: package org.netbeans.modules.mashup.db.ui.wizard;
042:
043: import java.util.HashSet;
044: import java.util.Iterator;
045: import java.util.Set;
046:
047: import javax.swing.event.ChangeEvent;
048: import javax.swing.event.ChangeListener;
049:
050: import org.openide.WizardDescriptor;
051:
052: /**
053: * Wizard panel to select tables and columns to be included in an Flatfile DB instance.
054: *
055: * @author Jonathan Giron
056: * @version $Revision$
057: */
058: public abstract class AbstractWizardPanel implements
059: WizardDescriptor.Panel {
060:
061: /** Set of ChangeListeners interested in changes to this panel */
062: protected Set listeners;
063:
064: /** Creates a new instance of AbstractWizardPanel */
065: public AbstractWizardPanel() {
066: listeners = new HashSet(1);
067: }
068:
069: /**
070: * @see org.openide.WizardDescriptor.Panel#addChangeListener
071: */
072: public final void addChangeListener(ChangeListener l) {
073: synchronized (listeners) {
074: listeners.add(l);
075: }
076: }
077:
078: /**
079: * Broadcasts change events to all interested listeners.
080: */
081: public final void fireChangeEvent() {
082: Iterator it;
083: synchronized (listeners) {
084: it = new HashSet(listeners).iterator();
085: }
086:
087: ChangeEvent ev = new ChangeEvent(this );
088: while (it.hasNext()) {
089: ((ChangeListener) it.next()).stateChanged(ev);
090: }
091: }
092:
093: /**
094: * Gets static step label associated with this panel.
095: *
096: * @return String representing step label
097: */
098: public abstract String getStepLabel();
099:
100: /**
101: * Gets title of this panel.
102: *
103: * @return String representing step label
104: */
105: public abstract String getTitle();
106:
107: /**
108: * @see org.openide.WizardDescriptor.Panel#isValid
109: */
110: public boolean isValid() {
111: return true;
112: }
113:
114: /**
115: * @see org.openide.WizardDescriptor.Panel#readSettings
116: */
117: public void readSettings(Object settings) {
118: }
119:
120: /**
121: * @see org.openide.WizardDescriptor.Panel#removeChangeListener
122: */
123: public final void removeChangeListener(ChangeListener l) {
124: synchronized (listeners) {
125: listeners.remove(l);
126: }
127: }
128:
129: /**
130: * @see org.openide.WizardDescriptor.Panel#storeSettings
131: */
132: public void storeSettings(Object settings) {
133: }
134: }
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