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Java > Open Source Codes > com > caucho > quercus > function > NullAsFalseMarshal


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  *
23  * Free Software Foundation, Inc.
24  * 59 Temple Place, Suite 330
25  * Boston, MA 02111-1307 USA
26  *
27  * @author Scott Ferguson
28  */
29
30 package com.caucho.quercus.function;
31
32 import com.caucho.quercus.env.BooleanValue;
33 import com.caucho.quercus.env.Env;
34 import com.caucho.quercus.env.Value;
35 import com.caucho.quercus.expr.Expr;
36
37 public class NullAsFalseMarshal extends Marshal
38 {
39   protected Marshal _marshal;
40
41   public NullAsFalseMarshal(Marshal marshal)
42   {
43     _marshal = marshal;
44   }
45
46   public boolean isBoolean()
47   {
48     return _marshal.isBoolean();
49   }
50
51   public boolean isString()
52   {
53     return _marshal.isString();
54   }
55
56   public boolean isLong()
57   {
58     return _marshal.isLong();
59   }
60
61   public boolean isDouble()
62   {
63     return _marshal.isDouble();
64   }
65
66   public boolean isReadOnly()
67   {
68     return _marshal.isReadOnly();
69   }
70
71   public boolean isReference()
72   {
73     return _marshal.isReference();
74   }
75
76   public Object JavaDoc marshal(Env env, Expr expr, Class JavaDoc argClass)
77   {
78     return _marshal.marshal(env, expr, argClass);
79   }
80
81   public Object JavaDoc marshal(Env env, Value value, Class JavaDoc argClass)
82   {
83     return _marshal.marshal(env, value, argClass);
84   }
85
86   public Value unmarshal(Env env, Object JavaDoc value)
87   {
88     // php/1427
89 if (value == null) {
90       return BooleanValue.FALSE;
91     }
92
93     Value result = _marshal.unmarshal(env, value);
94
95     return (result == null || result.isNull()) ? BooleanValue.FALSE : result;
96   }
97
98   public String JavaDoc toString()
99   {
100     return "NullAsFalseMarshal[" + _marshal + "]";
101   }
102 }
103
104
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