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Java > Open Source Codes > org > jboss > ejb > plugins > cmp > jdbc2 > JBossQLQueryCommand


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.jdbc2;
23
24 import org.jboss.ejb.plugins.cmp.jdbc2.bridge.JDBCEntityBridge2;
25 import org.jboss.ejb.plugins.cmp.jdbc2.bridge.JDBCCMPFieldBridge2;
26 import org.jboss.ejb.plugins.cmp.jdbc.metadata.JDBCJBossQLQueryMetaData;
27 import org.jboss.ejb.plugins.cmp.jdbc.QLCompiler;
28 import org.jboss.ejb.plugins.cmp.jdbc.EJBQLToSQL92Compiler;
29 import org.jboss.logging.Logger;
30 import org.jboss.deployment.DeploymentException;
31
32 /**
33  * @author <a HREF="mailto:alex@jboss.org">Alexey Loubyansky</a>
34  * @version <tt>$Revision: 58402 $</tt>
35  */
36 public class JBossQLQueryCommand
37    extends AbstractQueryCommand
38 {
39    public JBossQLQueryCommand(JDBCEntityBridge2 entity, JDBCJBossQLQueryMetaData metadata) throws DeploymentException
40    {
41       this.entity = entity;
42
43       JDBCStoreManager2 manager = (JDBCStoreManager2)entity.getManager();
44       QLCompiler compiler = new EJBQLToSQL92Compiler(manager.getCatalog());
45       
46       try
47       {
48          compiler.compileJBossQL(
49             metadata.getJBossQL(),
50             metadata.getMethod().getReturnType(),
51             metadata.getMethod().getParameterTypes(),
52             metadata);
53       }
54       catch(Throwable JavaDoc t)
55       {
56          t.printStackTrace();
57          throw new DeploymentException("Error compiling JBossQL statement '" + metadata.getJBossQL() + "'", t);
58       }
59
60       sql = compiler.getSQL();
61
62       log = Logger.getLogger(getClass().getName() + "." + entity.getEntityName() + "#" + metadata.getMethod().getName());
63       log.debug("sql: " + sql);
64
65       setParameters(compiler.getInputParameters());
66       setResultType(metadata.getMethod().getReturnType());
67
68       if(!compiler.isSelectEntity())
69       {
70          if(compiler.isSelectField())
71          {
72             setFieldReader((JDBCCMPFieldBridge2)compiler.getSelectField());
73          }
74          else
75          {
76             setFunctionReader(compiler.getSelectFunction());
77          }
78       }
79       else
80       {
81          setEntityReader((JDBCEntityBridge2)compiler.getSelectEntity(), compiler.isSelectDistinct());
82       }
83    }
84 }
85
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