1 /*
2 * Copyright 2002-2014 the original author or authors.
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
17 package org.springframework.expression.spel;
18
19 import org.springframework.expression.EvaluationContext;
20 import org.springframework.expression.EvaluationException;
21
22 /**
23 * Base superclass for compiled expressions. Each generated compiled expression class
24 * will extend this class and implement the {@link #getValue} method. It is not intended
25 * to be subclassed by user code.
26 *
27 * @author Andy Clement
28 * @since 4.1
29 */
30 public abstract class CompiledExpression {
31
32 /**
33 * Subclasses of CompiledExpression generated by SpelCompiler will provide an
34 * implementation of this method.
35 */
36 public abstract Object getValue(Object target, EvaluationContext context) throws EvaluationException;
37
38 }