More code, more code, more kibbles and code.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@5 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/presents/net/Credentials.java

@@ -1,8 +1,12 @@
 //
-// $Id: Credentials.java,v 1.1 2001/05/22 06:07:59 mdb Exp $
+// $Id: Credentials.java,v 1.2 2001/05/23 04:03:40 mdb Exp $
 
 package com.samskivert.cocktail.cher.net;
 
+import java.io.IOException;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+
 import com.samskivert.cocktail.cher.io.TypedObject;
 import com.samskivert.cocktail.cher.io.TypedObjectFactory;
 
@@ -17,7 +21,7 @@ import com.samskivert.cocktail.cher.io.TypedObjectFactory;
  * that they can be instantiated prior to reconstruction from a data input
  * stream.
  */
-public abstract class Credentials extends TypedObject
+public abstract class Credentials implements TypedObject
 {
     /**
      * All credential derived classes should base their typed object code
@@ -25,6 +29,28 @@ public abstract class Credentials extends TypedObject
      */
     public static final short TYPE_BASE = 300;
 
+    /**
+     * Derived classes should override this function to write their fields
+     * out to the supplied data output stream. They <em>must</em> be sure
+     * to first call <code>super.writeTo()</code>.
+     */
+    public void writeTo (DataOutputStream out)
+        throws IOException
+    {
+        // we don't do anything here, but we may want to some day
+    }
+
+    /**
+     * Derived classes should override this function to read their fields
+     * from the supplied data input stream. They <em>must</em> be sure to
+     * first call <code>super.readFrom()</code>.
+     */
+    public void readFrom (DataInputStream in)
+        throws IOException
+    {
+        // we don't do anything here, but we may want to some day
+    }
+
     // register our credential classes
     static {
         TypedObjectFactory.registerClass(UsernamePasswordCreds.TYPE,