/* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited

  *

  * Licensed 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.

  */

 package org.acegisecurity.vote;

 import java.lang.reflect.Method;

 /**

  * This is a strategy interface for determining which parts of a method invocation

  * are labeled. Not all arguments are necessarily labeled. This offers a plugabble

  * mechanism to define various ways to label data.

  *

  * @author Greg Turnquist

  * @version $Id: LabelParameterStrategy.java 1784 2007-02-24 21:00:24Z luke_t $

  */

 public interface LabelParameterStrategy {

     //~ Methods ========================================================================================================

     /**

      * Get the actual label associated with the argument. NOTE: This currently only supports one label per

      * argument.

      *

      * @param method

      * @param arg

      *

      * @return string value of the label

      */

     String getLabel(Method method, Object arg);

     /**

      * Evaluate if one particular argument is labeled. The context of the method is also provided should that

      * have bearing on the label.

      *

      * @param method

      * @param arg

      *

      * @return boolean

      */

     boolean isLabeled(Method method, Object arg);

 }