Made ObjectAccessException a nestable exception; modified

objectAvailable() error dispatching to not incorrectly report a failure to
create an object.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@918 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/presents/dobj/ObjectAccessException.java

@@ -1,8 +1,10 @@
 //
-// $Id: ObjectAccessException.java,v 1.2 2001/10/11 04:07:52 mdb Exp $
+// $Id: ObjectAccessException.java,v 1.3 2002/02/02 09:42:36 mdb Exp $
 
 package com.threerings.presents.dobj;
 
+import org.apache.commons.util.exception.NestableException;
+
 /**
  * An object access exception is delivered when an object is not
  * accessible to a requesting subscriber for some reason or other. For
@@ -10,10 +12,32 @@ package com.threerings.presents.dobj;
  * the error. For others, a message string explaining the access failure
  * is provided.
  */
-public class ObjectAccessException extends Exception
+public class ObjectAccessException extends NestableException
 {
+    /**
+     * Constructs a object access exception with the specified error
+     * message.
+     */
     public ObjectAccessException (String message)
     {
         super(message);
     }
+
+    /**
+     * Constructs a object access exception with the specified error
+     * message and the chained causing event.
+     */
+    public ObjectAccessException (String message, Exception cause)
+    {
+        super(message, cause);
+    }
+
+    /**
+     * Constructs a object access exception with the specified chained
+     * causing event.
+     */
+    public ObjectAccessException (Exception cause)
+    {
+        super(cause);
+    }
 }