/**
* Copyright 2010 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.client.doodad.experimental.htmltemplate;
/**
* Singleton implementation of {@code PartIdFactory} which establishes
* uniqueness based on static state and the Wave server-generated session ID.
*
* @author ihab@google.com (Ihab Awad)
*/
final class SessionPartIdFactory implements PartIdFactory {
private static int counter = 0;
private static final PartIdFactory instance = new SessionPartIdFactory();
private SessionPartIdFactory() {
}
public static PartIdFactory get() {
return instance;
}
@Override
public String getNextPartId() {
return "seed" + counter++;
}
}