/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.vysper.xmpp.modules.extension.xep0060_pubsub.storageprovider;
import org.apache.vysper.storage.StorageProvider;
import org.apache.vysper.xmpp.modules.extension.xep0060_pubsub.NodeVisitor;
import org.apache.vysper.xmpp.modules.extension.xep0060_pubsub.model.LeafNode;
/**
* This interface defines all methods a StorageProvider has to offer to be suitable
* for a CollectionNode in the pubsub-module.
*
* @author The Apache MINA Project (http://mina.apache.org)
*
*/
public interface CollectionNodeStorageProvider extends StorageProvider {
/**
* Retrieve a node via its JID
* @param nodeName the name of the node we're searching for
* @return the LeafNode if found, null otherwise.
*/
public LeafNode findNode(String nodeName);
/**
* Checks whether the collection node contains a node with a certain JID.
* @param nodeName the node we're searching for
* @return true if the JID corresponds to a known node.
*/
public boolean containsNode(String nodeName);
/**
* Stores a node under the specified JID.
* @param node the LeafNode to be stored.
*/
public void storeNode(LeafNode node);
/**
* Call the NodeVisitor for each node of the given collection node.
*
* @param nv the visitior to be called.
*/
public void acceptNodes(NodeVisitor nv);
/**
* Call to do some preliminary tasks after the module has been configured.
*/
public void initialize();
/**
* Delete the node with name nodeName.
* @param nodeName the name of the node to delete.
*/
public void deleteNode(String nodeName);
}