001: /*
002: * ====================================================================
003: * JAFFA - Java Application Framework For All
004: *
005: * Copyright (C) 2002 JAFFA Development Group
006: *
007: * This library is free software; you can redistribute it and/or
008: * modify it under the terms of the GNU Lesser General Public
009: * License as published by the Free Software Foundation; either
010: * version 2.1 of the License, or (at your option) any later version.
011: *
012: * This library is distributed in the hope that it will be useful,
013: * but WITHOUT ANY WARRANTY; without even the implied warranty of
014: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015: * Lesser General Public License for more details.
016: *
017: * You should have received a copy of the GNU Lesser General Public
018: * License along with this library; if not, write to the Free Software
019: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
020: *
021: * Redistribution and use of this software and associated documentation ("Software"),
022: * with or without modification, are permitted provided that the following conditions are met:
023: * 1. Redistributions of source code must retain copyright statements and notices.
024: * Redistributions must also contain a copy of this document.
025: * 2. Redistributions in binary form must reproduce the above copyright notice,
026: * this list of conditions and the following disclaimer in the documentation
027: * and/or other materials provided with the distribution.
028: * 3. The name "JAFFA" must not be used to endorse or promote products derived from
029: * this Software without prior written permission. For written permission,
030: * please contact mail to: jaffagroup@yahoo.com.
031: * 4. Products derived from this Software may not be called "JAFFA" nor may "JAFFA"
032: * appear in their names without prior written permission.
033: * 5. Due credit should be given to the JAFFA Project (http://jaffa.sourceforge.net).
034: *
035: * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
036: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
037: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
038: * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
039: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
040: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
041: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
042: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
043: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
044: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
045: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
046: * SUCH DAMAGE.
047: * ====================================================================
048: */
049:
050: package org.jaffa.presentation.portlet.widgets.model;
051:
052: import org.apache.log4j.*;
053: import java.util.*;
054:
055: /** Model for the CheckBox widget.
056: */
057: public class CheckBoxModel extends WidgetModel {
058: private static Logger log = Logger.getLogger(CheckBoxModel.class);
059:
060: private boolean m_value = false;
061: private boolean m_modelChanged = false;
062:
063: /** Creates a new instance with the specified value.
064: * @param checkValue the initial value.
065: */
066: public CheckBoxModel(Boolean checkValue) {
067: this (checkValue != null ? checkValue.booleanValue() : false);
068: }
069:
070: /** Creates a new instance with the specified value.
071: * @param checkValue the initial value.
072: */
073: public CheckBoxModel(boolean checkValue) {
074: m_value = checkValue;
075: }
076:
077: /** Returns the value of the model.
078: * @return the value of the model.
079: */
080: public boolean getState() {
081: return m_value;
082: }
083:
084: /** Sets the value of the model.
085: * @param checkValue The new value of the model.
086: */
087: public void setState(boolean checkValue) {
088: if (m_value != checkValue) {
089: m_value = checkValue;
090: setModelChanged(true);
091: }
092: }
093:
094: /** Change the state of the model internally.*/
095: private void setModelChanged(boolean setState) {
096: m_modelChanged = setState;
097: }
098:
099: /** See if model has changed, in the process reset the changed flag.
100: * @return true if the model was changed.
101: */
102: public boolean isModelChanged() {
103: boolean modified = m_modelChanged;
104: m_modelChanged = false;
105: return modified;
106: }
107:
108: }
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