OF-588: Making more of pubsub Serializable. As with the previous commit, I'm...

OF-588: Making more of pubsub Serializable. As with the previous commit, I'm not to sure this is the right way to go, but I'd like to see if this provides a band-aid for the issue.

git-svn-id: http://svn.igniterealtime.org/svn/repos/openfire/trunk@13352 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/openfire/pubsub/DefaultNodeConfiguration.java

@@ -26,6 +26,8 @@ import org.jivesoftware.openfire.pubsub.models.PublisherModel;
 import org.xmpp.forms.DataForm;
 import org.xmpp.forms.FormField;
 
+import java.io.Serializable;
+
 /**
  * A DefaultNodeConfiguration keeps the default configuration values for leaf or collection
  * nodes of a particular publish-subscribe service. New nodes created for the service 
@@ -33,7 +35,7 @@ import org.xmpp.forms.FormField;
  *
  * @author Matt Tucker
  */
-public class DefaultNodeConfiguration {
+public class DefaultNodeConfiguration implements Serializable {
 
     /**
      * Flag indicating whether this default configutation belongs to a leaf node or not.

src/java/org/jivesoftware/openfire/pubsub/models/AccessModel.java

@@ -25,12 +25,14 @@ import org.jivesoftware.openfire.pubsub.Node;
 import org.xmpp.packet.JID;
 import org.xmpp.packet.PacketError;
 
+import java.io.Serializable;
+
 /**
  * Policy that defines who is allowed to subscribe and retrieve items.
  *
  * @author Matt Tucker
  */
-public abstract class AccessModel {
+public abstract class AccessModel implements Serializable {
 
     public final static AccessModel whitelist = new WhitelistAccess();
     public final static AccessModel open = new OpenAccess();

src/java/org/jivesoftware/openfire/pubsub/models/PublisherModel.java

@@ -23,12 +23,14 @@ package org.jivesoftware.openfire.pubsub.models;
 import org.jivesoftware.openfire.pubsub.Node;
 import org.xmpp.packet.JID;
 
+import java.io.Serializable;
+
 /**
  * Policy that defines who is allowed to publish items to the node.
  *
  * @author Matt Tucker
  */
-public abstract class PublisherModel {
+public abstract class PublisherModel implements Serializable {
 
     public final static PublisherModel open = new OpenPublisher();
     public final static PublisherModel publishers = new OnlyPublishers();