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AnnotationOnTypeMunger.java

/* *******************************************************************
 * Copyright (c) 2005 IBM
 * All rights reserved. 
 * This program and the accompanying materials are made available 
 * under the terms of the Eclipse Public License v1.0 
 * which accompanies this distribution and is available at 
 * http://www.eclipse.org/legal/epl-v10.html 
 *  
 * Contributors: 
 *     Andy Clement     initial implementation 
 * ******************************************************************/

package org.aspectj.weaver;

import java.io.DataOutputStream;
import java.io.IOException;

/**
 * Represents adding an annotation to a type
 */
00021 public class AnnotationOnTypeMunger extends ResolvedTypeMunger {
      AnnotationAJ newAnnotation;

      public AnnotationOnTypeMunger(AnnotationAJ anno) {
            super(AnnotationOnType, null);
            newAnnotation = anno;
      }

      public void write(DataOutputStream s) throws IOException {
            throw new RuntimeException("unimplemented");
      }

      public AnnotationAJ getNewAnnotation() {
            return newAnnotation;
      }

      public boolean equals(Object other) {
            if (!(other instanceof AnnotationOnTypeMunger))
                  return false;
            AnnotationOnTypeMunger o = (AnnotationOnTypeMunger) other;
            // TODO does not check equality of annotation values
            return newAnnotation.getTypeSignature().equals(o.newAnnotation.getTypeSignature());
      }

      private volatile int hashCode = 0;

      public int hashCode() {
            if (hashCode == 0) {
                  int result = 17;
                  result = 37 * result + newAnnotation.getTypeSignature().hashCode();
                  hashCode = result;
            }
            return hashCode;
      }

}

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