1 /*
   2  * Copyright 2000-2001 Sun Microsystems, Inc.  All Rights Reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  20  * CA 95054 USA or visit www.sun.com if you need additional information or
  21  * have any questions.
  22  *  
  23  */
  24 
  25 package sun.jvm.hotspot.oops;
  26 
  27 /** A DefaultOopVisitor implements basic no-op OopVisitor
  28     functionality except that the setObj() and getObj() methods are
  29     implemented properly. */
  30 
  31 public class DefaultOopVisitor implements OopVisitor {
  32   private Oop obj;
  33 
  34   public void prologue()                        {}
  35 
  36   // Called after visiting an object
  37   public void epilogue()                        {}
  38 
  39   public void setObj(Oop obj) {
  40     this.obj = obj;
  41   }
  42 
  43   public Oop getObj() {
  44     return obj;
  45   }
  46 
  47   // Callback methods for each field type in an object
  48   public void doOop(OopField field, boolean isVMField)         {}
  49   public void doByte(ByteField field, boolean isVMField)       {}
  50   public void doChar(CharField field, boolean isVMField)       {}
  51   public void doBoolean(BooleanField field, boolean isVMField) {}
  52   public void doShort(ShortField field, boolean isVMField)     {}
  53   public void doInt(IntField field, boolean isVMField)         {}
  54   public void doLong(LongField field, boolean isVMField)       {}
  55   public void doFloat(FloatField field, boolean isVMField)     {}
  56   public void doDouble(DoubleField field, boolean isVMField)   {}
  57   public void doCInt(CIntField field, boolean isVMField)       {}
  58 }