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 java.util.*;
053: import org.apache.log4j.*;
054:
055: /** A GridModel will contain instances of this class, for each row that gets added to it.
056: */
057: public class GridModelRow extends WidgetModel implements IModelMap {
058:
059: private static Logger log = Logger.getLogger(GridModelRow.class);
060:
061: /** Maintains all the elements within a Row */
062: private HashMap m_cells = null;
063:
064: /** Maintains a reference to the GridModel object */
065: private GridModel m_model = null;
066:
067: /** A unique id for each row withing a GridModel*/
068: private int m_rowId = 0;
069:
070: /** Creates new GridModelRow.
071: */
072: GridModelRow(GridModel model, int rowId) {
073: m_model = model;
074: m_rowId = rowId;
075: }
076:
077: /** Returns the id for this row.
078: * @return the id for this row.
079: */
080: public int getRowId() {
081: return m_rowId;
082: }
083:
084: /** Returns the row element identified by the input element id.
085: * @param id The id of the element.
086: * @return the row element identified by the input element id.
087: */
088: public Object getElement(String id) {
089: if (m_cells == null)
090: return null;
091: else
092: return m_cells.get(id);
093: }
094:
095: /** Add an element to the row.
096: * @param id The id of the element.
097: * @param obj The value of the element.
098: */
099: public void addElement(String id, Object obj) {
100: if (m_cells == null)
101: m_cells = new HashMap();
102: m_cells.put(id, obj);
103: }
104:
105: Collection getElementNames() {
106: if (m_cells == null)
107: return null;
108: return m_cells.keySet();
109: }
110:
111: /** Returns a true if the row has an element having the input id.
112: * @param id The id of the element.
113: * @return a true if the row has an element having the input id.
114: */
115: public boolean hasElement(String id) {
116: if (m_cells == null)
117: return false;
118: return m_cells.containsKey(id);
119: }
120:
121: // IModelMap Interface implementation
122:
123: /** Returns the value for the input key.
124: * @param key The key
125: * @return the value for the input key.
126: */
127: public Object get(String key) {
128: if (log.isDebugEnabled())
129: log.debug("Key = " + key + ". Returned value = "
130: + getElement(key));
131: return getElement(key);
132: }
133:
134: /** Returns the number of key/value pairs stored in the model.
135: * @return the number of key/value pairs stored in the model.
136: */
137: public int size() {
138: return m_cells == null ? 0 : m_cells.size();
139: }
140: }
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