01: /*
02: * @(#)IEditableAttribute.java
03: *
04: * Copyright (C) 2002-2003 Matt Albrecht
05: * groboclown@users.sourceforge.net
06: * http://groboutils.sourceforge.net
07: *
08: * Part of the GroboUtils package at:
09: * http://groboutils.sourceforge.net
10: *
11: * Permission is hereby granted, free of charge, to any person obtaining a
12: * copy of this software and associated documentation files (the "Software"),
13: * to deal in the Software without restriction, including without limitation
14: * the rights to use, copy, modify, merge, publish, distribute, sublicense,
15: * and/or sell copies of the Software, and to permit persons to whom the
16: * Software is furnished to do so, subject to the following conditions:
17: *
18: * The above copyright notice and this permission notice shall be included in
19: * all copies or substantial portions of the Software.
20: *
21: * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
22: * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23: * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
24: * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
25: * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
26: * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
27: * DEALINGS IN THE SOFTWARE.
28: */
29: package net.sourceforge.groboutils.pmti.v1;
30:
31: /**
32: * A simple name-value association for a specific kind of issue attribute.
33: * All implementations of <tt>IAttribute</tt> are immutable, unless they also
34: * implement <tt>IEditableAttribute</tt>.
35: *
36: * @author Matt Albrecht <a href="mailto:groboclown@users.sourceforge.net">groboclown@users.sourceforge.net</a>
37: * @version $Date: 2003/02/10 22:51:54 $
38: * @since July 6, 2002
39: */
40: public interface IEditableAttribute extends IAttribute {
41: /**
42: * @exception IllegalArgumentException thrown if the value argument is
43: * invalid.
44: */
45: public void setValue(Object value);
46:
47: /**
48: * @return <tt>true</tt> if the <tt>setValue( Object )</tt> method has
49: * been called on this instance and the actual value has changed
50: * (via inspection with <tt>==</tt> and <tt>equals()</tt>),
51: * otherwise <tt>false</tt>.
52: */
53: public boolean hasValueChanged();
54:
55: /**
56: * Checks if the given value is a valid input value for the
57: * <tt>setValue( Object )</tt> method.
58: */
59: public boolean isValidValue(Object value);
60: }
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