1 package org.apache.commons.ognl; 2 3 /* 4 * Licensed to the Apache Software Foundation (ASF) under one 5 * or more contributor license agreements. See the NOTICE file 6 * distributed with this work for additional information 7 * regarding copyright ownership. The ASF licenses this file 8 * to you under the Apache License, Version 2.0 (the 9 * "License"); you may not use this file except in compliance 10 * with the License. You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, 15 * software distributed under the License is distributed on an 16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 17 * KIND, either express or implied. See the License for the 18 * specific language governing permissions and limitations 19 * under the License. 20 */ 21 22 import java.util.Map; 23 24 /** 25 * This interface defines methods for calling methods in a target object. Methods are broken up into static and instance 26 * methods for convenience. indexes into the target object, which must be an array. 27 * 28 * @author Luke Blanshard (blanshlu@netscape.net) 29 * @author Drew Davidson (drew@ognl.org) 30 */ 31 public interface MethodAccessor 32 { 33 /** 34 * Calls the static method named with the arguments given on the class given. 35 * 36 * @param context expression context in which the method should be called 37 * @param targetClass the object in which the method exists 38 * @param methodName the name of the method 39 * @param args the arguments to the method 40 * @return result of calling the method 41 * @exception OgnlException if there is an error calling the method 42 */ 43 Object callStaticMethod( Map<String, Object> context, Class<?> targetClass, String methodName, Object[] args ) 44 throws OgnlException; 45 46 /** 47 * Calls the method named with the arguments given. 48 * 49 * @param context expression context in which the method should be called 50 * @param target the object in which the method exists 51 * @param methodName the name of the method 52 * @param args the arguments to the method 53 * @return result of calling the method 54 * @exception OgnlException if there is an error calling the method 55 */ 56 Object callMethod( Map<String, Object> context, Object target, String methodName, Object[] args ) 57 throws OgnlException; 58 }