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

*** 1,7 ****
  /*
!  * Copyright (c) 2003, 2004, 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
*** 98,107 ****
--- 98,173 ----
              throw new SerialException("MalformedURLException: " + e.getMessage());
          }
          return aURL;
      }
  
+     /**
+      * Compares this {@code SerialDatalink} to the specified object.
+      * The result is {@code true} if and only if the argument is not
+      * {@code null} and is a {@code SerialDatalink} object whose URL is
+      * identical to this object's URL
+      *
+      * @param  obj The object to compare this {@code SerialDatalink} against
+      *
+      * @return  {@code true} if the given object represents a {@code SerialDatalink}
+      *          equivalent to this SerialDatalink, {@code false} otherwise
+      *
+      */
+     public boolean equals(Object obj) {
+         if (this == obj) {
+             return true;
+         }
+         if (obj instanceof SerialDatalink) {
+             SerialDatalink sdl = (SerialDatalink) obj;
+             return url.equals(sdl.url);
+         }
+         return false;
+     }
+     
+     /**
+      * Returns a hash code for this {@code SerialDatalink}. The hash code for a
+      * {@code SerialDatalink} object is taken as the hash code of
+      * the {@code URL} it stores
+      *
+      * @return  a hash code value for this object.
+      */
+     public int hashCode() {
+         return 31 + url.hashCode();    
+     }
+     
+     /**
+      * Returns a clone of this {@code SerialDatalink}. 
+      *  
+      * @return  a clone of this SerialDatalink
+      */ 
+     public Object clone() {
+         try {
+             SerialDatalink sdl = (SerialDatalink) super.clone();
+             return sdl;
+         } catch (CloneNotSupportedException ex) {
+             // this shouldn't happen, since we are Cloneable
+             throw new InternalError();
+         } 
+     }
+        
+     /**
+      * readObject is called to restore the state of the {@code SerialDatalink}
+      * from a stream.
+      */
+     private void readObject(ObjectInputStream s)
+             throws IOException, ClassNotFoundException {
+         s.defaultReadObject();
+     }
+     
+     /**
+      * writeObject is called to save the state of the {@code SerialDatalink}
+      * to a stream.
+      */
+     private void writeObject(ObjectOutputStream s)
+             throws IOException {
+         s.defaultWriteObject();
+     }
  
      /**
           * The identifier that assists in the serialization of this <code>SerialDatalink</code>
       * object.
       */