Package de.petris.dynamicaspects.wrapper

Source Code of de.petris.dynamicaspects.wrapper.CallWrapper

/*
* Copyright (c) 2004, Marco Petris
* All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*     - Redistributions of source code must retain the above copyright notice,
*       this list of conditions and the following disclaimer.
*     - Redistributions in binary form must reproduce the above copyright
*       notice, this list of conditions and the following disclaimer in the
*       documentation and/or other materials provided with the distribution.
*     - Neither the name of Marco Petris nor the names of its
*       contributors may be used to endorse or promote products derived from
*       this software without specific prior written permission.
*      
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/

package de.petris.dynamicaspects.wrapper;

import java.util.Iterator;

import de.petris.dynamicaspects.ArgumentInfo;
import de.petris.dynamicaspects.BeforeAfterAdvice;
import de.petris.dynamicaspects.ReturnInfo;

/**
* A wrapper that wrapps around a method or contructor call. The wrappers before()-method is
* called before the target method/constructor-call, the wrappers after()-method is called
* after the the target method/constructor-call. The before() and after()-method handles the
* aspects installed with this wrapper.
*
* @author Marco Petris
* @see de.petris.dynamicaspects.BeforeAfterAdvice
* @see de.petris.dynamicaspects.WeaveType
* @see de.petris.dynamicaspects.wrapper.CallMapper
* @see de.petris.dynamicaspects.classhandler.CallClassHandler
*/
public class CallWrapper extends Wrapper {
 
  /**
   * Creates an instance of this class.
   */
  public CallWrapper() {
    super();
  }
 
  /* (non-Javadoc)
   * @see de.petris.dynamicaspects.wrapper.Wrapper#before(de.petris.dynamicaspects.ArgumentInfo)
   */
  public void before( ArgumentInfo methodInfo ) {
   
    Iterator<BeforeAfterAdvice> iter =
      advices.iterator();
   
    while( iter.hasNext() ) {
      iter.next().before( methodInfo );
    }
  }
 
  /* (non-Javadoc)
   * @see de.petris.dynamicaspects.wrapper.Wrapper#after(java.lang.Object, boolean, boolean)
   */
  protected void after(
      Object returnValue, boolean isException, boolean returnsVoid ) {
   
    ReturnInfo returnInfo
      = new ReturnInfo(
          returnValue, isException, returnsVoid );
   
    Iterator<BeforeAfterAdvice> iter =
      advices.iterator();
   
    while( iter.hasNext() ) {
      iter.next().after( returnInfo );
    }
  }
 
}
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