Coverage Report - org.apache.commons.betwixt.expression.Expression

Classes in this File	Line Coverage	Branch Coverage	Complexity
Expression	N/A	N/A	1.0;1

1		/*
2		* Copyright 2001-2004 The Apache Software Foundation.
3		*
4		* Licensed under the Apache License, Version 2.0 (the "License");
5		* you may not use this file except in compliance with the License.
6		* You may obtain a copy of the License at
7		*
8		* http://www.apache.org/licenses/LICENSE-2.0
9		*
10		* Unless required by applicable law or agreed to in writing, software
11		* distributed under the License is distributed on an "AS IS" BASIS,
12		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13		* See the License for the specific language governing permissions and
14		* limitations under the License.
15		*/
16		package org.apache.commons.betwixt.expression;
17
18		/** <p><code>Expression</code> represents an arbitrary expression on a bean.</p>
19		*
20		* @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
21		*/
22		public interface Expression {
23
24		/** Evaluates the expression on the bean with the given context
25		* and returns the result
26		*
27		* @param context evaluate against this <code>Context</code>
28		* @return the value of the expression
29		*/
30		public Object evaluate(Context context);
31
32
33		/* XXX
34		Is update actually useful?
35		None of the expression implementations i can find do anything when it's called.
36		I suspect that it's been replaced by Updater
37		but i maybe i'm missing something subtle
38		*/
39		/** <p>Updates the current bean context with a new String value.
40		* This is typically used when parsing XML and updating a beans value
41		* from XML.<p>
42		*
43		* @param context update this <code>Context</code>
44		* @param newValue the new value for this expression
45		* @deprecated 0.5 use {@link Updater} instead
46		*/
47		public void update(Context context, String newValue);
48		}