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/*
* Copyright (c) 2006, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package javax.ejb;
import java.io.Serializable;
import java.util.Date;
import java.util.Collection;
/**
* The TimerService interface provides enterprise bean components with
* access to the container-provided Timer Service. The enterprise bean Timer
* Service allows stateless session beans, singleton session beans,
* message-driven beans, and enterprise bean 2.x entity beans to be registered for
* timer callback events at a specified time, after a specified
* elapsed time, after a specified interval, or according to a
* calendar-based schedule.
*
* @since EJB 2.1
*/
public interface TimerService {
/**
* Create a single-action timer that expires after a specified duration.
*
* @param duration the number of milliseconds that must elapse before
* the timer expires.
*
* @param info application information to be delivered along
* with the timer expiration notification. This can be null.
*
* @return the newly created Timer.
*
* @exception java.lang.IllegalArgumentException If duration is negative
*
* @exception java.lang.IllegalStateException If this method is
* invoked while the instance is in a state that does not allow access
* to this method.
*
* @exception javax.ejb.EJBException If this method fails due to a
* system-level failure.
*
*/
public Timer createTimer(long duration, Serializable info) throws
java.lang.IllegalArgumentException, java.lang.IllegalStateException,
javax.ejb.EJBException;
/**
* Create a single-action timer that expires after a specified duration.
*
* @param duration the number of milliseconds that must elapse before
* the timer expires.
*
* @param timerConfig timer configuration.
*
* @return the newly created Timer.
*
* @exception java.lang.IllegalArgumentException If duration is negative
*
* @exception java.lang.IllegalStateException If this method is
* invoked while the instance is in a state that does not allow access
* to this method.
*
* @exception javax.ejb.EJBException If this method fails due to a
* system-level failure.
*
* @since EJB 3.1
*/
public Timer createSingleActionTimer(long duration, TimerConfig timerConfig) throws
java.lang.IllegalArgumentException, java.lang.IllegalStateException,
javax.ejb.EJBException;
/**
* Create an interval timer whose first expiration occurs after a specified
* duration, and whose subsequent expirations occur after a specified
* interval.
*
* @param initialDuration The number of milliseconds that must elapse
* before the first timer expiration notification.
*
* @param intervalDuration The number of milliseconds that must elapse
* between timer expiration notifications. Expiration notifications are
* scheduled relative to the time of the first expiration. If expiration
* is delayed (e.g. due to the interleaving of other method calls on the
* bean), two or more expiration notifications may occur in close
* succession to "catch up".
*
* @param info application information to be delivered along
* with the timer expiration. This can be null.
*
* @return the newly created Timer.
*
* @exception java.lang.IllegalArgumentException If initialDuration is
* negative or intervalDuration is negative.
*
* @exception java.lang.IllegalStateException If this method is
* invoked while the instance is in a state that does not allow access
* to this method.
*
* @exception javax.ejb.EJBException If this method could not complete
* due to a system-level failure.
*
*/
public Timer createTimer(long initialDuration, long intervalDuration,
Serializable info) throws
java.lang.IllegalArgumentException, java.lang.IllegalStateException,
javax.ejb.EJBException;
/**
* Create an interval timer whose first expiration occurs after a specified
* duration, and whose subsequent expirations occur after a specified
* interval.
*
* @param initialDuration The number of milliseconds that must elapse
* before the first timer expiration notification.
*
* @param intervalDuration The number of milliseconds that must elapse
* between timer expiration notifications. Expiration notifications are
* scheduled relative to the time of the first expiration. If expiration
* is delayed (e.g. due to the interleaving of other method calls on the
* bean), two or more expiration notifications may occur in close
* succession to "catch up".
*
* @param timerConfig timer configuration
*
* @return the newly created Timer.
*
* @exception java.lang.IllegalArgumentException If initialDuration is
* negative or intervalDuration is negative.
*
* @exception java.lang.IllegalStateException If this method is
* invoked while the instance is in a state that does not allow access
* to this method.
*
* @exception javax.ejb.EJBException If this method could not complete
* due to a system-level failure.
*
* @since EJB 3.1
*/
public Timer createIntervalTimer(long initialDuration, long intervalDuration,
TimerConfig timerConfig) throws
java.lang.IllegalArgumentException, java.lang.IllegalStateException,
javax.ejb.EJBException;
/**
* Create a single-action timer that expires at a given point in time.
*
* @param expiration The point in time at which the timer must expire.
*
* @param info application information to be delivered along
* with the timer expiration notification. This can be null.
*
* @return the newly created Timer.
*
* @exception java.lang.IllegalArgumentException If expiration is null or
* expiration.getTime() is negative.
*
* @exception java.lang.IllegalStateException If this method is
* invoked while the instance is in a state that does not allow access
* to this method.
*
* @exception javax.ejb.EJBException If this method could not complete
* due to a system-level failure.
*
*/
public Timer createTimer(Date expiration, Serializable info) throws
java.lang.IllegalArgumentException, java.lang.IllegalStateException,
javax.ejb.EJBException;
/**
* Create a single-action timer that expires at a given point in time.
*
* @param expiration the point in time at which the timer must expire.
*
* @param timerConfig timer configuration.
*
* @return the newly created Timer.
*
* @exception java.lang.IllegalArgumentException If expiration is null or
* expiration.getTime() is negative.
*
* @exception java.lang.IllegalStateException If this method is
* invoked while the instance is in a state that does not allow access
* to this method.
*
* @exception javax.ejb.EJBException If this method could not complete
* due to a system-level failure.
*
* @since EJB 3.1
*/
public Timer createSingleActionTimer(Date expiration, TimerConfig timerConfig) throws
java.lang.IllegalArgumentException, java.lang.IllegalStateException,
javax.ejb.EJBException;
/**
* Create an interval timer whose first expiration occurs at a given
* point in time and whose subsequent expirations occur after a specified
* interval.
*
* @param initialExpiration the point in time at which the first timer
* expiration must occur.
*
* @param intervalDuration the number of milliseconds that must elapse
* between timer expiration notifications. Expiration notifications are
* scheduled relative to the time of the first expiration. If expiration
* is delayed (e.g. due to the interleaving of other method calls on the
* bean), two or more expiration notifications may occur in close
* succession to "catch up".
*
* @param info application information to be delivered along
* with the timer expiration. This can be null.
*
* @return the newly created Timer.
*
* @exception java.lang.IllegalArgumentException If
* initialExpiration is null, if initialExpiration.getTime() is
* negative, or if intervalDuration is negative.
*
* @exception java.lang.IllegalStateException If this method is
* invoked while the instance is in a state that does not allow access
* to this method.
*
* @exception javax.ejb.EJBException If this method could not complete
* due to a system-level failure.
*
*/
public Timer createTimer(Date initialExpiration, long intervalDuration,
Serializable info) throws
java.lang.IllegalArgumentException, java.lang.IllegalStateException,
javax.ejb.EJBException;
/**
* Create an interval timer whose first expiration occurs at a given
* point in time and whose subsequent expirations occur after a specified
* interval.
*
* @param initialExpiration the point in time at which the first timer
* expiration must occur.
*
* @param intervalDuration the number of milliseconds that must elapse
* between timer expiration notifications. Expiration notifications are
* scheduled relative to the time of the first expiration. If expiration
* is delayed (e.g. due to the interleaving of other method calls on the
* bean), two or more expiration notifications may occur in close
* succession to "catch up".
*
* @param timerConfig timer configuration.
*
* @return the newly created Timer.
*
* @exception java.lang.IllegalArgumentException If
* initialExpiration is null, if initialExpiration.getTime() is
* negative, or if intervalDuration is negative.
*
* @exception java.lang.IllegalStateException If this method is
* invoked while the instance is in a state that does not allow access
* to this method.
*
* @exception javax.ejb.EJBException If this method could not complete
* due to a system-level failure.
*
* @since EJB 3.1
*/
public Timer createIntervalTimer(Date initialExpiration, long intervalDuration,
TimerConfig timerConfig) throws
java.lang.IllegalArgumentException, java.lang.IllegalStateException,
javax.ejb.EJBException;
/**
* Create a calendar-based timer based on the input schedule expression.
*
* @param schedule a schedule expression describing the timeouts
* for this timer.
*
* @return the newly created Timer.
*
* @exception java.lang.IllegalArgumentException If Schedule represents an
* invalid schedule expression.
*
* @exception java.lang.IllegalStateException If this method is
* invoked while the instance is in a state that does not allow access
* to this method.
*
* @exception javax.ejb.EJBException If this method could not complete
* due to a system-level failure.
*
* @since EJB 3.1
*/
public Timer createCalendarTimer(ScheduleExpression schedule)
throws java.lang.IllegalArgumentException,
java.lang.IllegalStateException, javax.ejb.EJBException;
/**
* Create a calendar-based timer based on the input schedule expression.
*
* @param schedule a schedule expression describing the timeouts for this timer.
*
* @param timerConfig timer configuration.
*
* @return the newly created Timer.
*
* @exception java.lang.IllegalArgumentException If Schedule represents an
* invalid schedule expression.
*
* @exception java.lang.IllegalStateException If this method is
* invoked while the instance is in a state that does not allow access
* to this method.
*
* @exception javax.ejb.EJBException If this method could not complete
* due to a system-level failure.
*
* @since EJB 3.1
*/
public Timer createCalendarTimer(ScheduleExpression schedule, TimerConfig timerConfig)
throws java.lang.IllegalArgumentException,
java.lang.IllegalStateException, javax.ejb.EJBException;
/**
* Returns all active timers associated with this bean. These include both the
* programmatically-created timers and the automatically-created timers.
*
* @return a collection of javax.ejb.Timer objects.
*
* @exception java.lang.IllegalStateException If this method is
* invoked while the instance is in a state that does not allow access
* to this method.
*
* @exception javax.ejb.EJBException If this method could not complete
* due to a system-level failure.
*
*/
public Collection getTimers() throws java.lang.IllegalStateException,
javax.ejb.EJBException;
/**
* Returns all active timers associated with the beans in the same module in
* which the caller bean is packaged. These include both the
* programmatically-created timers and the automatically-created timers.
*
* @return a collection of javax.ejb.Timer objects.
*
* @exception java.lang.IllegalStateException If this method is
* invoked while the instance is in a state that does not allow access
* to this method.
*
* @exception javax.ejb.EJBException If this method could not complete
* due to a system-level failure.
*
* @since EJB 3.2
*/
public Collection getAllTimers() throws java.lang.IllegalStateException,
javax.ejb.EJBException;
}
