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.lang.reflect.Member;

 import java.util.Map;

 /**

  * This interface provides a hook for preparing for accessing members of objects. The Java2 version of this method can

  * allow access to otherwise inaccessable members, such as private fields.

  * 

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

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

  * @version 15 October 1999

  */

 public interface MemberAccess

 {

     /**

      * Sets the member up for accessibility

      */

     Object setup( Map<String, Object> context, Object target, Member member, String propertyName );

     /**

      * Restores the member from the previous setup call.

      */

     void restore( Map<String, Object> context, Object target, Member member, String propertyName, Object state );

     /**

      * Returns true if the given member is accessible or can be made accessible by this object.

      */

     boolean isAccessible( Map<String, Object> context, Object target, Member member, String propertyName );

 }