001/*
002 * Copyright 2002-2014 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      https://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.springframework.expression.spel;
018
019import org.springframework.expression.EvaluationContext;
020import org.springframework.expression.EvaluationException;
021
022/**
023 * Base superclass for compiled expressions. Each generated compiled expression class
024 * will extend this class and implement the {@link #getValue} method. It is not intended
025 * to be subclassed by user code.
026 *
027 * @author Andy Clement
028 * @since 4.1
029 */
030public abstract class CompiledExpression {
031
032        /**
033         * Subclasses of CompiledExpression generated by SpelCompiler will provide an
034         * implementation of this method.
035         */
036        public abstract Object getValue(Object target, EvaluationContext context) throws EvaluationException;
037
038}