01: /* ====================================================================
02: The Jicarilla Software License
03:
04: Copyright (c) 2003 Leo Simons.
05: All rights reserved.
06:
07: Permission is hereby granted, free of charge, to any person obtaining
08: a copy of this software and associated documentation files (the
09: "Software"), to deal in the Software without restriction, including
10: without limitation the rights to use, copy, modify, merge, publish,
11: distribute, sublicense, and/or sell copies of the Software, and to
12: permit persons to whom the Software is furnished to do so, subject to
13: the following conditions:
14:
15: The above copyright notice and this permission notice shall be
16: included in all copies or substantial portions of the Software.
17:
18: THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19: EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20: MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
21: IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
22: CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23: TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24: SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25: ==================================================================== */
26: package org.jicarilla.container;
27:
28: /**
29: * A {@link JicarillaException} that is thrown by a {@link Container} if the
30: * criterion exposed by a provided selector or a provided key itself is not
31: * supported by that container.
32: *
33: * @author <a href="mail at leosimons dot com">Leo Simons</a>
34: * @version $Id: IllegalKeyException.java,v 1.2 2004/01/11 11:49:26 lsimons Exp $
35: */
36: public class IllegalKeyException extends RegistrationException {
37: /** The key that was already registered. */
38: protected Object m_key;
39:
40: /**
41: * Construct a new <code>KeyAlreadyRegisteredException</code>
42: * instance.
43: *
44: * @param key the key that already exists.
45: */
46: public IllegalKeyException(final Object key) {
47: super ("A key named '" + key
48: + "' was added, but that key is illegal!");
49: if (key == null)
50: throw new NullPointerException("key");
51: m_key = key;
52: }
53:
54: /**
55: * Retrieve the key that was already registered.
56: *
57: * @return the key that was already registered.
58: */
59: public Object getKey() {
60: return m_key;
61: }
62: }
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