src/share/classes/javax/sql/rowset/serial/SerialRef.java

*** 1,7 ****
  /*
!  * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
--- 1,7 ----
  /*
!  * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
*** 161,170 ****
--- 161,249 ----
          }
          object = obj;
      }
  
      /**
+      * Compares this SerialRef to the specified object.  The result is {@code
+      * true} if and only if the argument is not {@code null} and is a {@code
+      * SerialRef} object that represents the same object as this
+      * object.
+      *
+      * @param  obj The object to compare this {@code SerialRef} against
+      *
+      * @return  {@code true} if the given object represents a {@code SerialRef}
+      *          equivalent to this SerialRef, {@code false} otherwise
+      *
+      */
+     public boolean equals(Object obj) {
+         if (this == obj) {
+             return true;
+         }
+         if(obj instanceof SerialRef) {
+             SerialRef ref = (SerialRef)obj;
+             if(baseTypeName.equals(ref.baseTypeName)) {
+                 return object.equals(ref.object);
+             }
+         }
+         return false;
+     }
+ 
+     /**
+      * Returns a hash code for this {@code SerialRef}.
+      * @return  a hash code value for this object.
+      */
+     public int hashCode() {
+         return (31 + object.hashCode()) * 31 + baseTypeName.hashCode();
+     }
+ 
+     /**
+      * Returns a clone of this {@code SerialRef}. .
+      * The underlying {@code Ref} object will be set to null.
+      *  
+      * @return  a clone of this SerialRef
+      */ 
+     public Object clone() {
+         try {
+             SerialRef ref = (SerialRef) super.clone();
+             ref.reference = null;
+             return ref;
+         } catch (CloneNotSupportedException ex) {
+             // this shouldn't happen, since we are Cloneable
+             throw new InternalError();
+         }
+        
+     }
+     
+     /**
+      * readObject is called to restore the state of the SerialRef from
+      * a stream.
+      */
+     private void readObject(ObjectInputStream s)
+             throws IOException, ClassNotFoundException {
+         ObjectInputStream.GetField fields = s.readFields();
+         object = fields.get("object", null);
+         baseTypeName = (String) fields.get("baseTypeName", null);     
+         reference = (Ref) fields.get("reference", null);
+     }
+     
+     /**
+      * writeObject is called to save the state of the SerialRef
+      * to a stream.
+      */
+     private void writeObject(ObjectOutputStream s)
+             throws IOException, ClassNotFoundException {
+ 
+         ObjectOutputStream.PutField fields = s.putFields();
+         fields.put("baseTypeName", baseTypeName);
+         fields.put("object", object);
+         // Note: this check to see if it is an instance of Serializable
+         // is for backwards compatibiity
+         fields.put("reference", reference instanceof Serializable ? reference : null);
+         s.writeFields();    
+     }
+ 
+     /**
       * The identifier that assists in the serialization of this <code>SerialRef</code>
       * object.
       */
      static final long serialVersionUID = -4727123500609662274L;