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Java > Open Source Codes > org > jboss > ejb > plugins > cmp > bridge > FieldBridge


1 /*
2 * JBoss, Home of Professional Open Source
3 * Copyright 2005, JBoss Inc., and individual contributors as indicated
4 * by the @authors tag. See the copyright.txt in the distribution for a
5 * full listing of individual contributors.
6 *
7 * This is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU Lesser General Public License as
9 * published by the Free Software Foundation; either version 2.1 of
10 * the License, or (at your option) any later version.
11 *
12 * This software is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this software; if not, write to the Free
19 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21 */
22 package org.jboss.ejb.plugins.cmp.bridge;
23
24 import org.jboss.ejb.EntityEnterpriseContext;
25
26 /**
27  * FieldBridge represents one field for one entity.
28  *
29  * Life-cycle:
30  * Tied to the EntityBridge.
31  *
32  * Multiplicity:
33  * One for each entity bean field.
34  *
35  * @author <a HREF="mailto:dain@daingroup.com">Dain Sundstrom</a>
36  * @author <a HREF="mailto:alex@jboss.org">Alex Loubyansky</a>
37  * @version $Revision: 37459 $
38  */
39 public interface FieldBridge {
40    /**
41     * Gets the name of this field.
42     * @return the name of this field
43     */
44    public String JavaDoc getFieldName();
45    
46    /**
47     * Gets the value of this field for the specified instance context.
48     * @param ctx the context for which this field's value should be fetched
49     * @return the value of this field
50     */
51    public Object JavaDoc getValue(EntityEnterpriseContext ctx);
52       
53    /**
54     * Sets the value of this field for the specified instance context.
55     * @param ctx the context for which this field's value should be set
56     * @param value the new value of this field
57     */
58    public void setValue(EntityEnterpriseContext ctx, Object JavaDoc value);
59 }
60
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