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/* 
 * Copyright 2001-2009 Terracotta, 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.quartz.spi;

import org.quartz.JobKey;
import org.quartz.Trigger;

/**
 * An interface to be used by JobStore instances in order to
 * communicate signals back to the QuartzScheduler.
 * 
 * @author jhouse
 */
public interface SchedulerSignaler {

    /*
     * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     * 
     * Interface.
     * 
     * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     */

    void notifyTriggerListenersMisfired(Trigger trigger);

    void notifySchedulerListenersFinalized(Trigger trigger);

    void notifySchedulerListenersJobDeleted(JobKey jobKey);

    void signalSchedulingChange(long candidateNewNextFireTime);
}