package org.apache.commons.ognl;

 /*

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

  * regarding copyright ownership.  The ASF licenses this file

  * to you under the Apache License, Version 2.0 (the

  * "License"); you may not use this file except in compliance

  * with the License.  You may obtain a copy of the License at

  *

  *   http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing,

  * software distributed under the License is distributed on an

  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

  * KIND, either express or implied.  See the License for the

  * specific language governing permissions and limitations

  * under the License.

  */

 import java.util.Map;

 /**

  * This interface defines methods for calling methods in a target object. Methods are broken up into static and instance

  * methods for convenience. indexes into the target object, which must be an array.

  * 

  * @author Luke Blanshard (blanshlu@netscape.net)

  * @author Drew Davidson (drew@ognl.org)

  */

 public interface MethodAccessor

 {

     /**

      * Calls the static method named with the arguments given on the class given.

      * 

      * @param context expression context in which the method should be called

      * @param targetClass the object in which the method exists

      * @param methodName the name of the method

      * @param args the arguments to the method

      * @return result of calling the method

      * @exception OgnlException if there is an error calling the method

      */

     Object callStaticMethod( Map<String, Object> context, Class<?> targetClass, String methodName, Object[] args )

         throws OgnlException;

     /**

      * Calls the method named with the arguments given.

      * 

      * @param context expression context in which the method should be called

      * @param target the object in which the method exists

      * @param methodName the name of the method

      * @param args the arguments to the method

      * @return result of calling the method

      * @exception OgnlException if there is an error calling the method

      */

     Object callMethod( Map<String, Object> context, Object target, String methodName, Object[] args )

         throws OgnlException;

 }