| Package | Description | 
|---|---|
| javax.ejb | Contains the Enterprise JavaBeans classes 
and interfaces that define the contracts between the enterprise bean 
and its clients and between the enterprise bean and the EJB container. | 
| Modifier and Type | Method and Description | 
|---|---|
| Timer | TimerService. createCalendarTimer(ScheduleExpression schedule,
                   TimerConfig timerConfig)Create a calendar-based timer based on the input schedule expression. | 
| Timer | TimerService. createIntervalTimer(Date initialExpiration,
                   long intervalDuration,
                   TimerConfig timerConfig)Create an interval timer whose first expiration occurs at a given
 point in time and whose subsequent expirations occur after a specified
 interval. | 
| Timer | TimerService. createIntervalTimer(long initialDuration,
                   long intervalDuration,
                   TimerConfig timerConfig)Create an interval timer whose first expiration occurs after a specified
 duration, and whose subsequent expirations occur after a specified
 interval. | 
| Timer | TimerService. createSingleActionTimer(Date expiration,
                       TimerConfig timerConfig)Create a single-action timer that expires at a given point in time. | 
| Timer | TimerService. createSingleActionTimer(long duration,
                       TimerConfig timerConfig)Create a single-action timer that expires after a specified duration. | 
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