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diff --git a/src/org/jivesoftware/smackx/NodeInformationProvider.java b/src/org/jivesoftware/smackx/NodeInformationProvider.java
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+/**
+ * $RCSfile$
+ * $Revision$
+ * $Date$
+ *
+ * Copyright 2003-2007 Jive Software.
+ *
+ * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jivesoftware.smackx;
+
+import org.jivesoftware.smack.packet.PacketExtension;
+import org.jivesoftware.smackx.packet.DiscoverInfo;
+import org.jivesoftware.smackx.packet.DiscoverItems;
+
+import java.util.List;
+
+
+/**
+ * The NodeInformationProvider is responsible for providing supported indentities, features
+ * and hosted items (i.e. DiscoverItems.Item) about a given node. This information will be
+ * requested each time this XMPPP client receives a disco info or items requests on the
+ * given node. each time this XMPPP client receives a disco info or items requests on the
+ * given node.
+ *
+ * @author Gaston Dombiak
+ */
+public interface NodeInformationProvider {
+
+    /**
+     * Returns a list of the Items {@link org.jivesoftware.smackx.packet.DiscoverItems.Item}
+     * defined in the node. For example, the MUC protocol specifies that an XMPP client should 
+     * answer an Item for each joined room when asked for the rooms where the use has joined.
+     *  
+     * @return a list of the Items defined in the node.
+     */
+    List<DiscoverItems.Item> getNodeItems();
+
+    /**
+     * Returns a list of the features defined in the node. For
+     * example, the entity caps protocol specifies that an XMPP client
+     * should answer with each feature supported by the client version
+     * or extension.
+     *
+     * @return a list of the feature strings defined in the node.
+     */
+    List<String> getNodeFeatures();
+
+    /**
+     * Returns a list of the indentites defined in the node. For
+     * example, the x-command protocol must provide an identity of
+     * category automation and type command-node for each command.
+     *
+     * @return a list of the Identities defined in the node.
+     */
+    List<DiscoverInfo.Identity> getNodeIdentities();
+
+    /**
+     * Returns a list of the packet extensions defined in the node.
+     *
+     * @return a list of the packet extensions defined in the node.
+     */
+    List<PacketExtension> getNodePacketExtensions();
+}