org.quartz.core.JobRunShellFactory Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of appengine-api-stubs

SDK for dev_appserver (local development) with some of the dependencies shaded (repackaged)

There is a newer version: 2.0.31


/* 
 * Copyright 2004-2005 OpenSymphony 
 * 
 * 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.
 * 
 */

/*
 * Previously Copyright (c) 2001-2004 James House
 */
package org.quartz.core;

import org.quartz.Scheduler;
import org.quartz.SchedulerConfigException;
import org.quartz.SchedulerException;

/**
 * 
 * Responsible for creating the instances of {@link JobRunShell}
 * to be used within the {@link QuartzScheduler} instance.
 * 
 * 
 * 
 * Although this interface looks a lot like an 'object pool', implementations
 * do not have to support the re-use of instances. If an implementation does
 * not wish to pool instances, then the borrowJobRunShell()
 * method would simply create a new instance, and the returnJobRunShell
 *  method would do nothing.
 * 
 * 
 * @author James House
 */
public interface JobRunShellFactory {

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

    /**
     * 
     * Initialize the factory, providing a handle to the Scheduler
     * that should be made available within the JobRunShell and
     * the JobExecutionCOntext s within it, and a handle to the
     * SchedulingContext that the shell will use in its own
     * operations with the JobStore.
     * 
     */
    public void initialize(Scheduler scheduler, SchedulingContext schedCtxt)
            throws SchedulerConfigException;

    /**
     * 
     * Called by the {@link org.quartz.core.QuartzSchedulerThread}
     * to obtain instances of {@link JobRunShell}.
     * 
     */
    public JobRunShell borrowJobRunShell() throws SchedulerException;

    /**
     * 
     * Called by the {@link org.quartz.core.QuartzSchedulerThread}
     * to return instances of {@link JobRunShell}.
     * 
     */
    public void returnJobRunShell(JobRunShell jobRunShell);

}