KickJava   Java API By Example, From Geeks To Geeks.

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


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.plugins.cmp.jdbc.bridge.JDBCEntityBridge;
25 import org.jboss.ejb.plugins.cmp.jdbc.metadata.JDBCQueryMetaData;
26 import org.jboss.ejb.plugins.cmp.jdbc.metadata.JDBCReadAheadMetaData;
27 import org.jboss.deployment.DeploymentException;
28
29 /**
30  * JDBCFindAllQuery automatic finder used in CMP 1.x.
31  *
32  * @author <a HREF="mailto:dain@daingroup.com">Dain Sundstrom</a>
33  * @author <a HREF="mailto:rickard.oberg@telkel.com">Rickard Öberg</a>
34  * @author <a HREF="mailto:marc.fleury@telkel.com">Marc Fleury</a>
35  * @author <a HREF="mailto:shevlandj@kpi.com.au">Joe Shevland</a>
36  * @author <a HREF="mailto:justin@j-m-f.demon.co.uk">Justin Forder</a>
37  * @author <a HREF="mailto:alex@jboss.org">Alex Loubyansky</a>
38  * @version $Revision: 43506 $
39  */
40 public final class JDBCFindAllQuery extends JDBCAbstractQueryCommand
41 {
42
43    public JDBCFindAllQuery(JDBCStoreManager manager, JDBCQueryMetaData q) throws DeploymentException
44    {
45       super(manager, q);
46
47       JDBCEntityBridge entity = (JDBCEntityBridge) manager.getEntityBridge();
48
49       // set the preload fields
50 JDBCReadAheadMetaData readAhead = q.getReadAhead();
51       if(readAhead.isOnFind())
52       {
53          setEagerLoadGroup(readAhead.getEagerLoadGroup());
54       }
55
56       // generate the sql
57 StringBuffer JavaDoc sql = new StringBuffer JavaDoc(300);
58       sql.append(SQLUtil.SELECT);
59       // put pk fields first
60 SQLUtil.getColumnNamesClause(entity.getPrimaryKeyFields(), sql);
61       if(getEagerLoadGroup() != null)
62       {
63          SQLUtil.appendColumnNamesClause(entity, getEagerLoadGroup(), sql);
64       }
65       sql.append(SQLUtil.FROM).append(entity.getQualifiedTableName());
66
67       setSQL(sql.toString());
68    }
69 }
70
Popular Tags