Scheduler (Quartz Enterprise Job Scheduler 2.3.0-SNAPSHOT API)

All Known Implementing Classes:

JBoss4RMIRemoteMBeanScheduler, RemoteMBeanScheduler, RemoteScheduler, StdScheduler
```
public interface Scheduler
```
This is the main interface of a Quartz Scheduler.
A Scheduler maintains a registry of JobDetails and Triggers. Once registered, the Scheduler is responsible for executing Job s when their associated Trigger s fire (when their scheduled time arrives).

Scheduler instances are produced by a SchedulerFactory. A scheduler that has already been created/initialized can be found and used through the same factory that produced it. After a Scheduler has been created, it is in "stand-by" mode, and must have its start() method called before it will fire any Jobs.

Job s are to be created by the 'client program', by defining a class that implements the Job interface. JobDetail objects are then created (also by the client) to define a individual instances of the Job. JobDetail instances can then be registered with the Scheduler via the scheduleJob(JobDetail, Trigger) or addJob(JobDetail, boolean) method.

Trigger s can then be defined to fire individual Job instances based on given schedules. SimpleTrigger s are most useful for one-time firings, or firing at an exact moment in time, with N repeats with a given delay between them. CronTrigger s allow scheduling based on time of day, day of week, day of month, and month of year.

Job s and Trigger s have a name and group associated with them, which should uniquely identify them within a single Scheduler. The 'group' feature may be useful for creating logical groupings or categorizations of Jobs s and Triggerss. If you don't have need for assigning a group to a given Jobs of Triggers, then you can use the DEFAULT_GROUP constant defined on this interface.

Stored Job s can also be 'manually' triggered through the use of the triggerJob(String jobName, String jobGroup) function.

Client programs may also be interested in the 'listener' interfaces that are available from Quartz. The JobListener interface provides notifications of Job executions. The TriggerListener interface provides notifications of Trigger firings. The SchedulerListener interface provides notifications of Scheduler events and errors. Listeners can be associated with local schedulers through the ListenerManager interface.

The setup/configuration of a Scheduler instance is very customizable. Please consult the documentation distributed with Quartz.

Author:

James House, Sharada Jambula

See Also:

Job, JobDetail, JobBuilder, Trigger, TriggerBuilder, JobListener, TriggerListener, SchedulerListener

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`DEFAULT_FAIL_OVER_GROUP` A constant `Trigger` group name used internally by the scheduler - clients should not use the value of this constant ("FAILED_OVER_JOBS") for the name of a `Trigger`'s group.
`static String`	`DEFAULT_GROUP` A (possibly) useful constant that can be used for specifying the group that `Job` and `Trigger` instances belong to.
`static String`	`DEFAULT_RECOVERY_GROUP` A constant `Trigger` group name used internally by the scheduler - clients should not use the value of this constant ("RECOVERING_JOBS") for the name of a `Trigger`'s group.
`static String`	`FAILED_JOB_ORIGINAL_TRIGGER_FIRETIME_IN_MILLISECONDS` A constant `JobDataMap` key that can be used to retrieve the fire time of the original `Trigger` from a recovery trigger's data map in the case of a job recovering after a failed scheduler instance.
`static String`	`FAILED_JOB_ORIGINAL_TRIGGER_GROUP` A constant `JobDataMap` key that can be used to retrieve the group of the original `Trigger` from a recovery trigger's data map in the case of a job recovering after a failed scheduler instance.
`static String`	`FAILED_JOB_ORIGINAL_TRIGGER_NAME` A constant `JobDataMap` key that can be used to retrieve the name of the original `Trigger` from a recovery trigger's data map in the case of a job recovering after a failed scheduler instance.
`static String`	`FAILED_JOB_ORIGINAL_TRIGGER_SCHEDULED_FIRETIME_IN_MILLISECONDS` A constant `JobDataMap` key that can be used to retrieve the scheduled fire time of the original `Trigger` from a recovery trigger's data map in the case of a job recovering after a failed scheduler instance.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`void`	`addCalendar(String calName, Calendar calendar, boolean replace, boolean updateTriggers)` Add (register) the given `Calendar` to the Scheduler.
`void`	`addJob(JobDetail jobDetail, boolean replace)` Add the given `Job` to the Scheduler - with no associated `Trigger`.
`void`	`addJob(JobDetail jobDetail, boolean replace, boolean storeNonDurableWhileAwaitingScheduling)` Add the given `Job` to the Scheduler - with no associated `Trigger`.
`boolean`	`checkExists(JobKey jobKey)` Determine whether a `Job` with the given identifier already exists within the scheduler.
`boolean`	`checkExists(TriggerKey triggerKey)` Determine whether a `Trigger` with the given identifier already exists within the scheduler.
`void`	`clear()` Clears (deletes!) all scheduling data - all `Job`s, `Trigger`s `Calendar`s.
`boolean`	`deleteCalendar(String calName)` Delete the identified `Calendar` from the Scheduler.
`boolean`	`deleteJob(JobKey jobKey)` Delete the identified `Job` from the Scheduler - and any associated `Trigger`s.
`boolean`	`deleteJobs(List<JobKey> jobKeys)` Delete the identified `Job`s from the Scheduler - and any associated `Trigger`s.
`Calendar`	`getCalendar(String calName)` Get the `Calendar` instance with the given name.
`List<String>`	`getCalendarNames()` Get the names of all registered `Calendars`.
`SchedulerContext`	`getContext()` Returns the `SchedulerContext` of the `Scheduler`.
`List<JobExecutionContext>`	`getCurrentlyExecutingJobs()` Return a list of `JobExecutionContext` objects that represent all currently executing Jobs in this Scheduler instance.
`JobDetail`	`getJobDetail(JobKey jobKey)` Get the `JobDetail` for the `Job` instance with the given key.
`List<String>`	`getJobGroupNames()` Get the names of all known `JobDetail` groups.
`Set<JobKey>`	`getJobKeys(GroupMatcher<JobKey> matcher)` Get the keys of all the `JobDetails` in the matching groups.
`ListenerManager`	`getListenerManager()` Get a reference to the scheduler's `ListenerManager`, through which listeners may be registered.
`SchedulerMetaData`	`getMetaData()` Get a `SchedulerMetaData` object describing the settings and capabilities of the scheduler instance.
`Set<String>`	`getPausedTriggerGroups()` Get the names of all `Trigger` groups that are paused.
`String`	`getSchedulerInstanceId()` Returns the instance Id of the `Scheduler`.
`String`	`getSchedulerName()` Returns the name of the `Scheduler`.
`Trigger`	`getTrigger(TriggerKey triggerKey)` Get the `Trigger` instance with the given key.
`List<String>`	`getTriggerGroupNames()` Get the names of all known `Trigger` groups.
`Set<TriggerKey>`	`getTriggerKeys(GroupMatcher<TriggerKey> matcher)` Get the names of all the `Triggers` in the given group.
`List<? extends Trigger>`	`getTriggersOfJob(JobKey jobKey)` Get all `Trigger` s that are associated with the identified `JobDetail`.
`Trigger.TriggerState`	`getTriggerState(TriggerKey triggerKey)` Get the current state of the identified `Trigger`.
`boolean`	`interrupt(JobKey jobKey)` Request the interruption, within this Scheduler instance, of all currently executing instances of the identified `Job`, which must be an implementor of the `InterruptableJob` interface.
`boolean`	`interrupt(String fireInstanceId)` Request the interruption, within this Scheduler instance, of the identified executing `Job` instance, which must be an implementor of the `InterruptableJob` interface.
`boolean`	`isInStandbyMode()` Reports whether the `Scheduler` is in stand-by mode.
`boolean`	`isShutdown()` Reports whether the `Scheduler` has been shutdown.
`boolean`	`isStarted()` Whether the scheduler has been started.
`void`	`pauseAll()` Pause all triggers - similar to calling `pauseTriggerGroup(group)` on every group, however, after using this method `resumeAll()` must be called to clear the scheduler's state of 'remembering' that all new triggers will be paused as they are added.
`void`	`pauseJob(JobKey jobKey)` Pause the `JobDetail` with the given key - by pausing all of its current `Trigger`s.
`void`	`pauseJobs(GroupMatcher<JobKey> matcher)` Pause all of the `JobDetails` in the matching groups - by pausing all of their `Trigger`s.
`void`	`pauseTrigger(TriggerKey triggerKey)` Pause the `Trigger` with the given key.
`void`	`pauseTriggers(GroupMatcher<TriggerKey> matcher)` Pause all of the `Triggers` in the groups matching.
`Date`	`rescheduleJob(TriggerKey triggerKey, Trigger newTrigger)` Remove (delete) the `Trigger` with the given key, and store the new given one - which must be associated with the same job (the new trigger must have the job name & group specified) - however, the new trigger need not have the same name as the old trigger.
`void`	`resetTriggerFromErrorState(TriggerKey triggerKey)` Reset the current state of the identified `Trigger` from `Trigger.TriggerState.ERROR` to `Trigger.TriggerState.NORMAL` or `Trigger.TriggerState.PAUSED` as appropriate.
`void`	`resumeAll()` Resume (un-pause) all triggers - similar to calling `resumeTriggerGroup(group)` on every group.
`void`	`resumeJob(JobKey jobKey)` Resume (un-pause) the `JobDetail` with the given key.
`void`	`resumeJobs(GroupMatcher<JobKey> matcher)` Resume (un-pause) all of the `JobDetails` in matching groups.
`void`	`resumeTrigger(TriggerKey triggerKey)` Resume (un-pause) the `Trigger` with the given key.
`void`	`resumeTriggers(GroupMatcher<TriggerKey> matcher)` Resume (un-pause) all of the `Triggers` in matching groups.
`void`	`scheduleJob(JobDetail jobDetail, Set<? extends Trigger> triggersForJob, boolean replace)` Schedule the given job with the related set of triggers.
`Date`	`scheduleJob(JobDetail jobDetail, Trigger trigger)` Add the given `JobDetail` to the Scheduler, and associate the given `Trigger` with it.
`Date`	`scheduleJob(Trigger trigger)` Schedule the given `Trigger` with the `Job` identified by the `Trigger`'s settings.
`void`	`scheduleJobs(Map<JobDetail,Set<? extends Trigger>> triggersAndJobs, boolean replace)` Schedule all of the given jobs with the related set of triggers.
`void`	`setJobFactory(JobFactory factory)` Set the `JobFactory` that will be responsible for producing instances of `Job` classes.
`void`	`shutdown()` Halts the `Scheduler`'s firing of `Triggers`, and cleans up all resources associated with the Scheduler.
`void`	`shutdown(boolean waitForJobsToComplete)` Halts the `Scheduler`'s firing of `Triggers`, and cleans up all resources associated with the Scheduler.
`void`	`standby()` Temporarily halts the `Scheduler`'s firing of `Triggers`.
`void`	`start()` Starts the `Scheduler`'s threads that fire `Triggers`.
`void`	`startDelayed(int seconds)` Calls {#start()} after the indicated number of seconds.
`void`	`triggerJob(JobKey jobKey)` Trigger the identified `JobDetail` (execute it now).
`void`	`triggerJob(JobKey jobKey, JobDataMap data)` Trigger the identified `JobDetail` (execute it now).
`boolean`	`unscheduleJob(TriggerKey triggerKey)` Remove the indicated `Trigger` from the scheduler.
`boolean`	`unscheduleJobs(List<TriggerKey> triggerKeys)` Remove all of the indicated `Trigger`s from the scheduler.

- Field Detail
  - DEFAULT_GROUP
```
static final String DEFAULT_GROUP
```
    A (possibly) useful constant that can be used for specifying the group that Job and Trigger instances belong to.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_RECOVERY_GROUP
```
static final String DEFAULT_RECOVERY_GROUP
```
    A constant Trigger group name used internally by the scheduler - clients should not use the value of this constant ("RECOVERING_JOBS") for the name of a Trigger's group.
    
    See Also:
    
    JobDetail.requestsRecovery(), Constant Field Values
  - DEFAULT_FAIL_OVER_GROUP
```
static final String DEFAULT_FAIL_OVER_GROUP
```
    A constant Trigger group name used internally by the scheduler - clients should not use the value of this constant ("FAILED_OVER_JOBS") for the name of a Trigger's group.
    
    See Also:
    
    JobDetail.requestsRecovery(), Constant Field Values
  - FAILED_JOB_ORIGINAL_TRIGGER_NAME
```
static final String FAILED_JOB_ORIGINAL_TRIGGER_NAME
```
    A constant JobDataMap key that can be used to retrieve the name of the original Trigger from a recovery trigger's data map in the case of a job recovering after a failed scheduler instance.
    
    See Also:
    
    JobDetail.requestsRecovery(), Constant Field Values
  - FAILED_JOB_ORIGINAL_TRIGGER_GROUP
```
static final String FAILED_JOB_ORIGINAL_TRIGGER_GROUP
```
    A constant JobDataMap key that can be used to retrieve the group of the original Trigger from a recovery trigger's data map in the case of a job recovering after a failed scheduler instance.
    
    See Also:
    
    JobDetail.requestsRecovery(), Constant Field Values
  - FAILED_JOB_ORIGINAL_TRIGGER_FIRETIME_IN_MILLISECONDS
```
static final String FAILED_JOB_ORIGINAL_TRIGGER_FIRETIME_IN_MILLISECONDS
```
    A constant JobDataMap key that can be used to retrieve the fire time of the original Trigger from a recovery trigger's data map in the case of a job recovering after a failed scheduler instance.
    Note that this is the time the original firing actually occurred, which may be different from the scheduled fire time - as a trigger doesn't always fire exactly on time.
    
    See Also:
    
    JobDetail.requestsRecovery(), Constant Field Values
  - FAILED_JOB_ORIGINAL_TRIGGER_SCHEDULED_FIRETIME_IN_MILLISECONDS
```
static final String FAILED_JOB_ORIGINAL_TRIGGER_SCHEDULED_FIRETIME_IN_MILLISECONDS
```
    A constant JobDataMap key that can be used to retrieve the scheduled fire time of the original Trigger from a recovery trigger's data map in the case of a job recovering after a failed scheduler instance.
    Note that this is the time the original firing was scheduled for, which may be different from the actual firing time - as a trigger doesn't always fire exactly on time.
    
    See Also:
    
    JobDetail.requestsRecovery(), Constant Field Values
- Method Detail
  - getSchedulerName
```
String getSchedulerName()
                 throws SchedulerException
```
    Returns the name of the Scheduler.
    
    Throws:
    
    SchedulerException
  - getSchedulerInstanceId
```
String getSchedulerInstanceId()
                       throws SchedulerException
```
    Returns the instance Id of the Scheduler.
    
    Throws:
    
    SchedulerException
  - getContext
```
SchedulerContext getContext()
                     throws SchedulerException
```
    Returns the SchedulerContext of the Scheduler.
    
    Throws:
    
    SchedulerException
  - start
```
void start()
    throws SchedulerException
```
    Starts the Scheduler's threads that fire Triggers. When a scheduler is first created it is in "stand-by" mode, and will not fire triggers. The scheduler can also be put into stand-by mode by calling the standby() method.
    The misfire/recovery process will be started, if it is the initial call to this method on this scheduler instance.
    
    Throws:
    
    SchedulerException - if shutdown() has been called, or there is an error within the Scheduler.
    
    See Also:
    
    startDelayed(int), standby(), shutdown()
  - startDelayed
```
void startDelayed(int seconds)
           throws SchedulerException
```
    Calls {#start()} after the indicated number of seconds. (This call does not block). This can be useful within applications that have initializers that create the scheduler immediately, before the resources needed by the executing jobs have been fully initialized.
    
    Throws:
    
    SchedulerException - if shutdown() has been called, or there is an error within the Scheduler.
    
    See Also:
    
    start(), standby(), shutdown()
  - isStarted
```
boolean isStarted()
           throws SchedulerException
```
    Whether the scheduler has been started.
    Note: This only reflects whether start() has ever been called on this Scheduler, so it will return true even if the Scheduler is currently in standby mode or has been since shutdown.
    
    Throws:
    
    SchedulerException
    
    See Also:
    
    start(), isShutdown(), isInStandbyMode()
  - standby
```
void standby()
      throws SchedulerException
```
    Temporarily halts the Scheduler's firing of Triggers.
    When start() is called (to bring the scheduler out of stand-by mode), trigger misfire instructions will NOT be applied during the execution of the start() method - any misfires will be detected immediately afterward (by the JobStore's normal process).
    
    The scheduler is not destroyed, and can be re-started at any time.
    
    Throws:
    
    SchedulerException
    
    See Also:
    
    start(), pauseAll()
  - isInStandbyMode
```
boolean isInStandbyMode()
                 throws SchedulerException
```
    Reports whether the Scheduler is in stand-by mode.
    
    Throws:
    
    SchedulerException
    
    See Also:
    
    standby(), start()
  - shutdown
```
void shutdown()
       throws SchedulerException
```
    Halts the Scheduler's firing of Triggers, and cleans up all resources associated with the Scheduler. Equivalent to shutdown(false).
    The scheduler cannot be re-started.
    
    Throws:
    
    SchedulerException
    
    See Also:
    
    shutdown(boolean)
  - shutdown
```
void shutdown(boolean waitForJobsToComplete)
       throws SchedulerException
```
    Halts the Scheduler's firing of Triggers, and cleans up all resources associated with the Scheduler.
    The scheduler cannot be re-started.
    
    Parameters:
    
    waitForJobsToComplete - if true the scheduler will not allow this method to return until all currently executing jobs have completed.
    
    Throws:
    
    SchedulerException
    
    See Also:
    
    shutdown()
  - isShutdown
```
boolean isShutdown()
            throws SchedulerException
```
    Reports whether the Scheduler has been shutdown.
    
    Throws:
    
    SchedulerException
  - getMetaData
```
SchedulerMetaData getMetaData()
                       throws SchedulerException
```
    Get a SchedulerMetaData object describing the settings and capabilities of the scheduler instance.
    Note that the data returned is an 'instantaneous' snap-shot, and that as soon as it's returned, the meta data values may be different.
    
    Throws:
    
    SchedulerException
  - getCurrentlyExecutingJobs
```
List<JobExecutionContext> getCurrentlyExecutingJobs()
                                             throws SchedulerException
```
    Return a list of JobExecutionContext objects that represent all currently executing Jobs in this Scheduler instance.
    This method is not cluster aware. That is, it will only return Jobs currently executing in this Scheduler instance, not across the entire cluster.
    
    Note that the list returned is an 'instantaneous' snap-shot, and that as soon as it's returned, the true list of executing jobs may be different. Also please read the doc associated with JobExecutionContext- especially if you're using RMI.
    
    Throws:
    
    SchedulerException
    
    See Also:
    
    JobExecutionContext
  - setJobFactory
```
void setJobFactory(JobFactory factory)
            throws SchedulerException
```
    Set the JobFactory that will be responsible for producing instances of Job classes.
    JobFactories may be of use to those wishing to have their application produce Job instances via some special mechanism, such as to give the opportunity for dependency injection.
    
    Throws:
    
    SchedulerException
    
    See Also:
    
    JobFactory
  - getListenerManager
```
ListenerManager getListenerManager()
                            throws SchedulerException
```
    Get a reference to the scheduler's ListenerManager, through which listeners may be registered.
    
    Returns:
    
    the scheduler's ListenerManager
    
    Throws:
    
    SchedulerException - if the scheduler is not local
    
    See Also:
    
    ListenerManager, JobListener, TriggerListener, SchedulerListener
  - scheduleJob
```
Date scheduleJob(JobDetail jobDetail,
                 Trigger trigger)
          throws SchedulerException
```
    Add the given JobDetail to the Scheduler, and associate the given Trigger with it.
    If the given Trigger does not reference any Job, then it will be set to reference the Job passed with it into this method.
    
    Throws:
    
    SchedulerException - if the Job or Trigger cannot be added to the Scheduler, or there is an internal Scheduler error.
  - scheduleJob
```
Date scheduleJob(Trigger trigger)
          throws SchedulerException
```
    Schedule the given Trigger with the Job identified by the Trigger's settings.
    
    Throws:
    
    SchedulerException - if the indicated Job does not exist, or the Trigger cannot be added to the Scheduler, or there is an internal Scheduler error.
  - scheduleJobs
```
void scheduleJobs(Map<JobDetail,Set<? extends Trigger>> triggersAndJobs,
                  boolean replace)
           throws SchedulerException
```
    Schedule all of the given jobs with the related set of triggers.
    If any of the given jobs or triggers already exist (or more specifically, if the keys are not unique) and the replace parameter is not set to true then an exception will be thrown.
    
    Throws:
    
    ObjectAlreadyExistsException - if the job/trigger keys are not unique and the replace flag is not set to true.
    
    SchedulerException
  - scheduleJob
```
void scheduleJob(JobDetail jobDetail,
                 Set<? extends Trigger> triggersForJob,
                 boolean replace)
          throws SchedulerException
```
    Schedule the given job with the related set of triggers.
    If any of the given job or triggers already exist (or more specifically, if the keys are not unique) and the replace parameter is not set to true then an exception will be thrown.
    
    Throws:
    
    ObjectAlreadyExistsException - if the job/trigger keys are not unique and the replace flag is not set to true.
    
    SchedulerException
  - unscheduleJob
```
boolean unscheduleJob(TriggerKey triggerKey)
               throws SchedulerException
```
    Remove the indicated Trigger from the scheduler.
    If the related job does not have any other triggers, and the job is not durable, then the job will also be deleted.
    
    Throws:
    
    SchedulerException
  - unscheduleJobs
```
boolean unscheduleJobs(List<TriggerKey> triggerKeys)
                throws SchedulerException
```
    Remove all of the indicated Triggers from the scheduler.
    If the related job does not have any other triggers, and the job is not durable, then the job will also be deleted.
    
    Note that while this bulk operation is likely more efficient than invoking unscheduleJob(TriggerKey triggerKey) several times, it may have the adverse affect of holding data locks for a single long duration of time (rather than lots of small durations of time).
    
    Throws:
    
    SchedulerException
  - rescheduleJob
```
Date rescheduleJob(TriggerKey triggerKey,
                   Trigger newTrigger)
            throws SchedulerException
```
    Remove (delete) the Trigger with the given key, and store the new given one - which must be associated with the same job (the new trigger must have the job name & group specified) - however, the new trigger need not have the same name as the old trigger.
    
    Parameters:
    
    triggerKey - identity of the trigger to replace
    
    newTrigger - The new Trigger to be stored.
    
    Returns:
    
    null if a Trigger with the given name & group was not found and removed from the store (and the new trigger is therefore not stored), otherwise the first fire time of the newly scheduled trigger is returned.
    
    Throws:
    
    SchedulerException
  - addJob
```
void addJob(JobDetail jobDetail,
            boolean replace)
     throws SchedulerException
```
    Add the given Job to the Scheduler - with no associated Trigger. The Job will be 'dormant' until it is scheduled with a Trigger, or Scheduler.triggerJob() is called for it.
    The Job must by definition be 'durable', if it is not, SchedulerException will be thrown.
    
    Throws:
    
    SchedulerException - if there is an internal Scheduler error, or if the Job is not durable, or a Job with the same name already exists, and replace is false.
    
    See Also:
    
    addJob(JobDetail, boolean, boolean)
  - addJob
```
void addJob(JobDetail jobDetail,
            boolean replace,
            boolean storeNonDurableWhileAwaitingScheduling)
     throws SchedulerException
```
    Add the given Job to the Scheduler - with no associated Trigger. The Job will be 'dormant' until it is scheduled with a Trigger, or Scheduler.triggerJob() is called for it.
    With the storeNonDurableWhileAwaitingScheduling parameter set to true, a non-durable job can be stored. Once it is scheduled, it will resume normal non-durable behavior (i.e. be deleted once there are no remaining associated triggers).
    
    Throws:
    
    SchedulerException - if there is an internal Scheduler error, or if the Job is not durable, or a Job with the same name already exists, and replace is false.
  - deleteJob
```
boolean deleteJob(JobKey jobKey)
           throws SchedulerException
```
    Delete the identified Job from the Scheduler - and any associated Triggers.
    
    Returns:
    
    true if the Job was found and deleted.
    
    Throws:
    
    SchedulerException - if there is an internal Scheduler error.
  - deleteJobs
```
boolean deleteJobs(List<JobKey> jobKeys)
            throws SchedulerException
```
    Delete the identified Jobs from the Scheduler - and any associated Triggers.
    Note that while this bulk operation is likely more efficient than invoking deleteJob(JobKey jobKey) several times, it may have the adverse affect of holding data locks for a single long duration of time (rather than lots of small durations of time).
    
    Returns:
    
    true if all of the Jobs were found and deleted, false if one or more were not deleted.
    
    Throws:
    
    SchedulerException - if there is an internal Scheduler error.
  - triggerJob
```
void triggerJob(JobKey jobKey)
         throws SchedulerException
```
    Trigger the identified JobDetail (execute it now).
    
    Throws:
    
    SchedulerException
  - triggerJob
```
void triggerJob(JobKey jobKey,
                JobDataMap data)
         throws SchedulerException
```
    Trigger the identified JobDetail (execute it now).
    
    Parameters:
    
    data - the (possibly null) JobDataMap to be associated with the trigger that fires the job immediately.
    
    Throws:
    
    SchedulerException
  - pauseJob
```
void pauseJob(JobKey jobKey)
       throws SchedulerException
```
    Pause the JobDetail with the given key - by pausing all of its current Triggers.
    
    Throws:
    
    SchedulerException
    
    See Also:
    
    resumeJob(JobKey)
  - pauseJobs
```
void pauseJobs(GroupMatcher<JobKey> matcher)
        throws SchedulerException
```
    Pause all of the JobDetails in the matching groups - by pausing all of their Triggers.
    The Scheduler will "remember" the groups paused, and impose the pause on any new jobs that are added to any of those groups until it is resumed.
    
    NOTE: There is a limitation that only exactly matched groups can be remembered as paused. For example, if there are pre-existing job in groups "aaa" and "bbb" and a matcher is given to pause groups that start with "a" then the group "aaa" will be remembered as paused and any subsequently added jobs in group "aaa" will be paused, however if a job is added to group "axx" it will not be paused, as "axx" wasn't known at the time the "group starts with a" matcher was applied. HOWEVER, if there are pre-existing groups "aaa" and "bbb" and a matcher is given to pause the group "axx" (with a group equals matcher) then no jobs will be paused, but it will be remembered that group "axx" is paused and later when a job is added in that group, it will become paused.
    
    Parameters:
    
    matcher - The matcher to evaluate against know groups
    
    Throws:
    
    SchedulerException - On error
    
    See Also:
    
    resumeJobs(org.quartz.impl.matchers.GroupMatcher)
  - pauseTrigger
```
void pauseTrigger(TriggerKey triggerKey)
           throws SchedulerException
```
    Pause the Trigger with the given key.
    
    Throws:
    
    SchedulerException
    
    See Also:
    
    resumeTrigger(TriggerKey)
  - pauseTriggers
```
void pauseTriggers(GroupMatcher<TriggerKey> matcher)
            throws SchedulerException
```
    Pause all of the Triggers in the groups matching.
    The Scheduler will "remember" all the groups paused, and impose the pause on any new triggers that are added to any of those groups until it is resumed.
    
    NOTE: There is a limitation that only exactly matched groups can be remembered as paused. For example, if there are pre-existing triggers in groups "aaa" and "bbb" and a matcher is given to pause groups that start with "a" then the group "aaa" will be remembered as paused and any subsequently added triggers in that group be paused, however if a trigger is added to group "axx" it will not be paused, as "axx" wasn't known at the time the "group starts with a" matcher was applied. HOWEVER, if there are pre-existing groups "aaa" and "bbb" and a matcher is given to pause the group "axx" (with a group equals matcher) then no triggers will be paused, but it will be remembered that group "axx" is paused and later when a trigger is added in that group, it will become paused.
    
    Parameters:
    
    matcher - The matcher to evaluate against know groups
    
    Throws:
    
    SchedulerException
    
    See Also:
    
    resumeTriggers(org.quartz.impl.matchers.GroupMatcher)
  - resumeJob
```
void resumeJob(JobKey jobKey)
        throws SchedulerException
```
    Resume (un-pause) the JobDetail with the given key.
    If any of the Job'sTrigger s missed one or more fire-times, then the Trigger's misfire instruction will be applied.
    
    Throws:
    
    SchedulerException
    
    See Also:
    
    pauseJob(JobKey)
  - resumeJobs
```
void resumeJobs(GroupMatcher<JobKey> matcher)
         throws SchedulerException
```
    Resume (un-pause) all of the JobDetails in matching groups.
    If any of the Job s had Trigger s that missed one or more fire-times, then the Trigger's misfire instruction will be applied.
    
    Parameters:
    
    matcher - The matcher to evaluate against known paused groups
    
    Throws:
    
    SchedulerException - On error
    
    See Also:
    
    pauseJobs(GroupMatcher)
  - resumeTrigger
```
void resumeTrigger(TriggerKey triggerKey)
            throws SchedulerException
```
    Resume (un-pause) the Trigger with the given key.
    If the Trigger missed one or more fire-times, then the Trigger's misfire instruction will be applied.
    
    Throws:
    
    SchedulerException
    
    See Also:
    
    pauseTrigger(TriggerKey)
  - resumeTriggers
```
void resumeTriggers(GroupMatcher<TriggerKey> matcher)
             throws SchedulerException
```
    Resume (un-pause) all of the Triggers in matching groups.
    If any Trigger missed one or more fire-times, then the Trigger's misfire instruction will be applied.
    
    Parameters:
    
    matcher - The matcher to evaluate against know paused groups
    
    Throws:
    
    SchedulerException - On error
    
    See Also:
    
    pauseTriggers(org.quartz.impl.matchers.GroupMatcher)
  - pauseAll
```
void pauseAll()
       throws SchedulerException
```
    Pause all triggers - similar to calling pauseTriggerGroup(group) on every group, however, after using this method resumeAll() must be called to clear the scheduler's state of 'remembering' that all new triggers will be paused as they are added.
    When resumeAll() is called (to un-pause), trigger misfire instructions WILL be applied.
    
    Throws:
    
    SchedulerException
    
    See Also:
    
    resumeAll(), pauseTriggers(org.quartz.impl.matchers.GroupMatcher), standby()
  - resumeAll
```
void resumeAll()
        throws SchedulerException
```
    Resume (un-pause) all triggers - similar to calling resumeTriggerGroup(group) on every group.
    If any Trigger missed one or more fire-times, then the Trigger's misfire instruction will be applied.
    
    Throws:
    
    SchedulerException
    
    See Also:
    
    pauseAll()
  - getJobGroupNames
```
List<String> getJobGroupNames()
                       throws SchedulerException
```
    Get the names of all known JobDetail groups.
    
    Throws:
    
    SchedulerException
  - getJobKeys
```
Set<JobKey> getJobKeys(GroupMatcher<JobKey> matcher)
                throws SchedulerException
```
    Get the keys of all the JobDetails in the matching groups.
    
    Parameters:
    
    matcher - Matcher to evaluate against known groups
    
    Returns:
    
    Set of all keys matching
    
    Throws:
    
    SchedulerException - On error
  - getTriggersOfJob
```
List<? extends Trigger> getTriggersOfJob(JobKey jobKey)
                                  throws SchedulerException
```
    Get all Trigger s that are associated with the identified JobDetail.
    The returned Trigger objects will be snap-shots of the actual stored triggers. If you wish to modify a trigger, you must re-store the trigger afterward (e.g. see rescheduleJob(TriggerKey, Trigger)).
    
    Throws:
    
    SchedulerException
  - getTriggerGroupNames
```
List<String> getTriggerGroupNames()
                           throws SchedulerException
```
    Get the names of all known Trigger groups.
    
    Throws:
    
    SchedulerException
  - getTriggerKeys
```
Set<TriggerKey> getTriggerKeys(GroupMatcher<TriggerKey> matcher)
                        throws SchedulerException
```
    Get the names of all the Triggers in the given group.
    
    Parameters:
    
    matcher - Matcher to evaluate against known groups
    
    Returns:
    
    List of all keys matching
    
    Throws:
    
    SchedulerException - On error
  - getPausedTriggerGroups
```
Set<String> getPausedTriggerGroups()
                            throws SchedulerException
```
    Get the names of all Trigger groups that are paused.
    
    Throws:
    
    SchedulerException
  - getJobDetail
```
JobDetail getJobDetail(JobKey jobKey)
                throws SchedulerException
```
    Get the JobDetail for the Job instance with the given key.
    The returned JobDetail object will be a snap-shot of the actual stored JobDetail. If you wish to modify the JobDetail, you must re-store the JobDetail afterward (e.g. see addJob(JobDetail, boolean)).
    
    Throws:
    
    SchedulerException
  - getTrigger
```
Trigger getTrigger(TriggerKey triggerKey)
            throws SchedulerException
```
    Get the Trigger instance with the given key.
    The returned Trigger object will be a snap-shot of the actual stored trigger. If you wish to modify the trigger, you must re-store the trigger afterward (e.g. see rescheduleJob(TriggerKey, Trigger)).
    
    Throws:
    
    SchedulerException
  - getTriggerState
```
Trigger.TriggerState getTriggerState(TriggerKey triggerKey)
                              throws SchedulerException
```
    Get the current state of the identified Trigger.
    
    Throws:
    
    SchedulerException
    
    See Also:
    
    Trigger.TriggerState
  - resetTriggerFromErrorState
```
void resetTriggerFromErrorState(TriggerKey triggerKey)
                         throws SchedulerException
```
    Reset the current state of the identified Trigger from Trigger.TriggerState.ERROR to Trigger.TriggerState.NORMAL or Trigger.TriggerState.PAUSED as appropriate.
    Only affects triggers that are in ERROR state - if identified trigger is not in that state then the result is a no-op.
    
    The result will be the trigger returning to the normal, waiting to be fired state, unless the trigger's group has been paused, in which case it will go into the PAUSED state.
    
    Throws:
    
    SchedulerException
    
    See Also:
    
    Trigger.TriggerState
  - addCalendar
```
void addCalendar(String calName,
                 Calendar calendar,
                 boolean replace,
                 boolean updateTriggers)
          throws SchedulerException
```
    Add (register) the given Calendar to the Scheduler.
    
    Parameters:
    
    updateTriggers - whether or not to update existing triggers that referenced the already existing calendar so that they are 'correct' based on the new trigger.
    
    Throws:
    
    SchedulerException - if there is an internal Scheduler error, or a Calendar with the same name already exists, and replace is false.
  - deleteCalendar
```
boolean deleteCalendar(String calName)
                throws SchedulerException
```
    Delete the identified Calendar from the Scheduler.
    If removal of the Calendar would result in Triggers pointing to non-existent calendars, then a SchedulerException will be thrown.
    
    Returns:
    
    true if the Calendar was found and deleted.
    
    Throws:
    
    SchedulerException - if there is an internal Scheduler error, or one or more triggers reference the calendar
  - getCalendar
```
Calendar getCalendar(String calName)
              throws SchedulerException
```
    Get the Calendar instance with the given name.
    
    Throws:
    
    SchedulerException
  - getCalendarNames
```
List<String> getCalendarNames()
                       throws SchedulerException
```
    Get the names of all registered Calendars.
    
    Throws:
    
    SchedulerException
  - interrupt
```
boolean interrupt(JobKey jobKey)
           throws UnableToInterruptJobException
```
    Request the interruption, within this Scheduler instance, of all currently executing instances of the identified Job, which must be an implementor of the InterruptableJob interface.
    If more than one instance of the identified job is currently executing, the InterruptableJob#interrupt() method will be called on each instance. However, there is a limitation that in the case that interrupt() on one instances throws an exception, all remaining instances (that have not yet been interrupted) will not have their interrupt() method called.
    
    This method is not cluster aware. That is, it will only interrupt instances of the identified InterruptableJob currently executing in this Scheduler instance, not across the entire cluster.
    
    Returns:
    
    true if at least one instance of the identified job was found and interrupted.
    
    Throws:
    
    UnableToInterruptJobException - if the job does not implement InterruptableJob, or there is an exception while interrupting the job.
    
    See Also:
    
    InterruptableJob.interrupt(), getCurrentlyExecutingJobs(), interrupt(String)
  - interrupt
```
boolean interrupt(String fireInstanceId)
           throws UnableToInterruptJobException
```
    Request the interruption, within this Scheduler instance, of the identified executing Job instance, which must be an implementor of the InterruptableJob interface.
    This method is not cluster aware. That is, it will only interrupt instances of the identified InterruptableJob currently executing in this Scheduler instance, not across the entire cluster.
    
    Parameters:
    
    fireInstanceId - the unique identifier of the job instance to be interrupted (see JobExecutionContext.getFireInstanceId()
    
    Returns:
    
    true if the identified job instance was found and interrupted.
    
    Throws:
    
    UnableToInterruptJobException - if the job does not implement InterruptableJob, or there is an exception while interrupting the job.
    
    See Also:
    
    InterruptableJob.interrupt(), getCurrentlyExecutingJobs(), JobExecutionContext.getFireInstanceId(), interrupt(JobKey)
  - checkExists
```
boolean checkExists(JobKey jobKey)
             throws SchedulerException
```
    Determine whether a Job with the given identifier already exists within the scheduler.
    
    Parameters:
    
    jobKey - the identifier to check for
    
    Returns:
    
    true if a Job exists with the given identifier
    
    Throws:
    
    SchedulerException
  - checkExists
```
boolean checkExists(TriggerKey triggerKey)
             throws SchedulerException
```
    Determine whether a Trigger with the given identifier already exists within the scheduler.
    
    Parameters:
    
    triggerKey - the identifier to check for
    
    Returns:
    
    true if a Trigger exists with the given identifier
    
    Throws:
    
    SchedulerException
  - clear
```
void clear()
    throws SchedulerException
```
    Clears (deletes!) all scheduling data - all Jobs, Triggers Calendars.
    
    Throws:
    
    SchedulerException

Interface Scheduler

Field Summary

Method Summary

Field Detail

DEFAULT_GROUP

DEFAULT_RECOVERY_GROUP

DEFAULT_FAIL_OVER_GROUP

FAILED_JOB_ORIGINAL_TRIGGER_NAME

FAILED_JOB_ORIGINAL_TRIGGER_GROUP

FAILED_JOB_ORIGINAL_TRIGGER_FIRETIME_IN_MILLISECONDS

FAILED_JOB_ORIGINAL_TRIGGER_SCHEDULED_FIRETIME_IN_MILLISECONDS

Method Detail

getSchedulerName

getSchedulerInstanceId

getContext

start

startDelayed

isStarted

standby

isInStandbyMode

shutdown

shutdown

isShutdown

getMetaData

getCurrentlyExecutingJobs

setJobFactory

getListenerManager

scheduleJob

scheduleJob

scheduleJobs

scheduleJob

unscheduleJob

unscheduleJobs

rescheduleJob

addJob

addJob

deleteJob

deleteJobs

triggerJob

triggerJob

pauseJob

pauseJobs

pauseTrigger

pauseTriggers

resumeJob

resumeJobs

resumeTrigger

resumeTriggers

pauseAll

resumeAll

getJobGroupNames

getJobKeys

getTriggersOfJob

getTriggerGroupNames

getTriggerKeys

getPausedTriggerGroups

getJobDetail

getTrigger

getTriggerState

resetTriggerFromErrorState

addCalendar

deleteCalendar

getCalendar

getCalendarNames

interrupt

interrupt

checkExists

checkExists

clear