1 /* gnu.java.beans.decoder.IndexContext
2 Copyright (C) 2004 Free Software Foundation, Inc.
4 This file is part of GNU Classpath.
6 GNU Classpath is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Classpath is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Classpath; see the file COPYING. If not, write to the
18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 Linking this library statically or dynamically with other modules is
22 making a combined work based on this library. Thus, the terms and
23 conditions of the GNU General Public License cover the whole
26 As a special exception, the copyright holders of this library give you
27 permission to link this library with independent modules to produce an
28 executable, regardless of the license terms of these independent
29 modules, and to copy and distribute the resulting executable under
30 terms of your choice, provided that you also meet, for each linked
31 independent module, the terms and conditions of the license of that
32 module. An independent module is a module which is not derived from
33 or based on this library. If you modify this library, you may extend
34 this exception to your version of the library, but you are not
35 obligated to do so. If you do not wish to do so, delete this
36 exception statement from your version. */
38 package gnu
.java
.beans
.decoder
;
40 /** IndexContext is Context implementation that senses whether it is an indexed get or set
41 * operation and invokes this operation.
43 * <p>An IndexContent is a get operation when no argument is provided and a set operation if one
44 * argument is provided.</p>
46 * @author Robert Schuster
48 class IndexContext
extends AbstractContext
50 private Object result
;
51 private Object argument
;
53 private boolean isSetter
;
55 IndexContext(String id
, int newIndex
)
62 * @see gnu.java.beans.decoder.Context#addObject(java.lang.Object)
64 public void addParameterObject(Object o
) throws AssemblyException
72 throw new AssemblyException(new IllegalStateException("More than one argument for indiced access is not possible."));
76 * @see gnu.java.beans.decoder.Context#reportStatement()
78 public void notifyStatement(Context outerContext
) throws AssemblyException
80 throw new AssemblyException(new IllegalStateException("Statements inside indiced access are not allowed."));
84 * @see gnu.java.beans.decoder.Context#endContext(gnu.java.beans.decoder.Context)
86 public Object
endContext(Context outerContext
) throws AssemblyException
91 outerContext
.set(index
, argument
);
97 return result
= outerContext
.get(index
);
101 * @see gnu.java.beans.decoder.Context#subContextFailed()
103 public boolean subContextFailed()
105 // returns true to indicate that indiced access assembly fails when one of its
106 // argument could not be assembled
111 * @see gnu.java.beans.decoder.Context#set(int, java.lang.Object)
113 public void set(int index
, Object o
) throws AssemblyException
115 throw new AssemblyException(new IllegalStateException("Setter is not allowed inside indiced access."));
119 * @see gnu.java.beans.decoder.Context#get(int)
121 public Object
get(int index
) throws AssemblyException
123 throw new AssemblyException(new IllegalStateException("getter is not allowed insided indiced access."));
126 public Object
getResult()