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1   /*
2    * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
3    * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4    *
5    * This code is free software; you can redistribute it and/or modify it
6    * under the terms of the GNU General Public License version 2 only, as
7    * published by the Free Software Foundation.  Oracle designates this
8    * particular file as subject to the "Classpath" exception as provided
9    * by Oracle in the LICENSE file that accompanied this code.
10   *
11   * This code is distributed in the hope that it will be useful, but WITHOUT
12   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14   * version 2 for more details (a copy is included in the LICENSE file that
15   * accompanied this code).
16   *
17   * You should have received a copy of the GNU General Public License version
18   * 2 along with this work; if not, write to the Free Software Foundation,
19   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20   *
21   * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22   * or visit www.oracle.com if you need additional information or have any
23   * questions.
24   */
25  
26  package com.sun.tools.internal.xjc.generator.bean.field;
27  
28  import com.sun.tools.internal.xjc.generator.bean.ClassOutlineImpl;
29  import com.sun.tools.internal.xjc.model.CPropertyInfo;
30  import com.sun.tools.internal.xjc.outline.FieldOutline;
31  
32  /**
33   * FieldRenderer that wraps another field generator
34   * and produces isSetXXX unsetXXX methods.
35   *
36   * <p>
37   * This follows the decorator design pattern so that
38   * the caller of FieldRenderer can forget about details
39   * of the method generation.
40   *
41   * @author
42   *     Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
43   */
44  public class IsSetFieldRenderer implements FieldRenderer {
45      private final FieldRenderer core;
46      private final boolean generateUnSetMethod;
47      private final boolean generateIsSetMethod;
48  
49      public IsSetFieldRenderer(
50          FieldRenderer core,
51          boolean generateUnSetMethod, boolean generateIsSetMethod ) {
52  
53          this.core = core;
54          this.generateUnSetMethod = generateUnSetMethod;
55          this.generateIsSetMethod = generateIsSetMethod;
56      }
57  
58      public FieldOutline generate(ClassOutlineImpl context, CPropertyInfo prop) {
59          return new IsSetField(context,prop,
60              core.generate(context, prop),
61              generateUnSetMethod,generateIsSetMethod);
62      }
63  }