001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.commons.jexl2; 018 019 /** 020 * <p>A JEXL Script.</p> 021 * <p>A script is some valid JEXL syntax to be executed with 022 * a given set of {@link JexlContext} variabless.</p> 023 * <p>A script is a group of statements, separated by semicolons.</p> 024 * <p>The statements can be <code>blocks</code> (curly braces containing code), 025 * Control statements such as <code>if</code> and <code>while</code> 026 * as well as expressions and assignment statements.</p> 027 * 028 * @since 1.1 029 */ 030 public interface Script { 031 /** 032 * Executes the script with the variables contained in the 033 * supplied {@link JexlContext}. 034 * 035 * @param context A JexlContext containing variables. 036 * @return The result of this script, usually the result of 037 * the last statement. 038 */ 039 Object execute(JexlContext context); 040 041 /** 042 * Returns the text of this Script. 043 * @return The script to be executed. 044 */ 045 String getText(); 046 047 }