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Java > Open Source Codes > org > jboss > ejb > plugins > cmp > jdbc > JDBCInitEntityCommand


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.jdbc;
23
24 import org.jboss.ejb.EntityEnterpriseContext;
25 import org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCEntityBridge;
26
27 /**
28  * CMPStoreManager JDBCActivateEntityCommand
29  *
30  * @author <a HREF="mailto:dain@daingroup.com">Dain Sundstrom</a>
31  * @version $Revision: 37459 $
32  */
33 public final class JDBCInitEntityCommand {
34    private final JDBCEntityBridge entity;
35    
36    public JDBCInitEntityCommand(JDBCStoreManager manager) {
37       entity = (JDBCEntityBridge) manager.getEntityBridge();
38    }
39    
40    /**
41     * Called before ejbCreate. In the JDBCStoreManager we need to
42     * initialize the presistence context. The persistence context is where
43     * where bean data is stored. If CMP 1.x, original values are store
44     * and for CMP 2.x actual values are stored int the context. Then we
45     * initialize the data. In CMP 1.x fields are reset to Java defaults, and
46     * in CMP 2.x current value in persistence store are initialized.
47     *
48     * Note: persistence context is also initialized in activate.
49     */
50    public void execute(EntityEnterpriseContext ctx) {
51       entity.initPersistenceContext(ctx);
52       entity.initInstance(ctx);
53    }
54 }
55
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