/**
* Copyright 2009 Google Inc.
*
* 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.waveprotocol.wave.model.util;
import java.util.Queue;
/**
* A factory interface for creating the types of collections that we
* have optimized JavaScript implementations for.
*/
public interface CollectionFactory {
/**
* Returns a new, empty StringMap.
*/
<V> StringMap<V> createStringMap();
/**
* Returns a new, empty NumberMap.
*/
<V> NumberMap<V> createNumberMap();
/**
* Returns a new, empty IntMap.
*/
<V> IntMap<V> createIntMap();
/**
* Returns a new, empty StringSet.
*/
<V> StringSet createStringSet();
/**
* Returns a new, empty IdentitySet.
*/
<T> IdentitySet<T> createIdentitySet();
/**
* Returns a queue.
*/
<E> Queue<E> createQueue();
/**
* Returns a priority queue.
*/
NumberPriorityQueue createPriorityQueue();
/**
* Returns an identity map.
*/
<K, V> IdentityMap<K, V> createIdentityMap();
}