| /* |
| * Copyright 2009-2013 by The Regents of the University of California |
| * 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 from |
| * |
| * 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 edu.uci.ics.pregelix.dataflow.context; |
| |
| import edu.uci.ics.hyracks.api.exceptions.HyracksDataException; |
| import edu.uci.ics.hyracks.storage.common.buffercache.IPageCleanerPolicy; |
| |
| public class PreDelayPageCleanerPolicy implements IPageCleanerPolicy { |
| private long delay; |
| |
| public PreDelayPageCleanerPolicy(long delay) { |
| this.delay = delay; |
| } |
| |
| @Override |
| public void notifyCleanCycleStart(Object monitor) throws HyracksDataException { |
| try { |
| monitor.wait(delay); |
| } catch (InterruptedException e) { |
| throw new HyracksDataException(e); |
| } |
| } |
| |
| @Override |
| public void notifyCleanCycleFinish(Object monitor) throws HyracksDataException { |
| |
| } |
| |
| @Override |
| public void notifyVictimNotFound(Object monitor) throws HyracksDataException { |
| monitor.notifyAll(); |
| } |
| } |