/**
* 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.zookeeper;
import java.util.Set;
/**
*/
public interface ClientWatchManager {
/**
* Return a set of watchers that should be notified of the event. The
* manager must not notify the watcher(s), however it will update it's
* internal structure as if the watches had triggered. The intent being
* that the callee is now responsible for notifying the watchers of the
* event, possibly at some later time.
*
* @param state event state
* @param type event type
* @param path event path
* @return may be empty set but must not be null
*/
public Set<Watcher> materialize(Watcher.Event.KeeperState state,
Watcher.Event.EventType type, String path);
}