EntityPoolChain


1   /*
2    * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3    *
4    * This file is part of Resin(R) Open Source
5    *
6    * Each copy or derived work must preserve the copyright notice and this
7    * notice unmodified.
8    *
9    * Resin Open Source is free software; you can redistribute it and/or modify
10   * it under the terms of the GNU General Public License as published by
11   * the Free Software Foundation; either version 2 of the License, or
12   * (at your option) any later version.
13   *
14   * Resin Open Source is distributed in the hope that it will be useful,
15   * but WITHOUT ANY WARRANTY; without even the implied warranty of
16   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17   * of NON-INFRINGEMENT.  See the GNU General Public License for more
18   * details.
19   *
20   * You should have received a copy of the GNU General Public License
21   * along with Resin Open Source; if not, write to the
22   *   Free SoftwareFoundation, Inc.
23   *   59 Temple Place, Suite 330
24   *   Boston, MA 02111-1307  USA
25   *
26   * @author Scott Ferguson
27   */
28  
29  package com.caucho.ejb.gen;
30  
31  import com.caucho.java.JavaWriter;
32  import com.caucho.java.gen.CallChain;
33  import com.caucho.java.gen.FilterCallChain;
34  import com.caucho.util.L10N;
35  
36  import java.io.IOException  ;
37  
38  /**
39   * Generates the bean instance for a method call.
40   */
41  public class EntityPoolChain extends FilterCallChain {
42    private static final L10N L = new L10N(EntityPoolChain.class);
43  
44    private boolean _isHome;
45    private boolean _doLoad;
46  
47    public EntityPoolChain(CallChain next, boolean isHome)
48    {
49      super(next);
50  
51      _isHome = isHome;
52      _doLoad = ! isHome;
53      // _doLoad = false;
54    }
55    
56    /**
57     * Prints a call within the same JVM
58     *
59     * @param out the java source stream
60     * @param retVar the variable to store the return value in
61     * @param var the object with the method
62     * @param args the call's arguments
63     */
64    public void generateCall(JavaWriter out, String   retVar,
65                 String   var, String   []args)
66      throws IOException  
67    {
68      out.println("Bean ptr = _context._ejb_begin(trans, " + _isHome +", " + _doLoad + ");");
69      
70      super.generateCall(out, retVar, "ptr", args);
71    }
72  }
73
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