org.quartz.spi

Interface JobStore

All Known Implementing Classes:

JobStoreCMT, JobStoreSupport, JobStoreTX, RAMJobStore

public interface JobStore

The interface to be implemented by classes that want to provide a Job and Trigger storage mechanism for the QuartzScheduler's use.

Storage of Job s and Trigger s should be keyed on the combination of their name and group for uniqueness.

Author:

James House, Eric Mueller

See Also:

QuartzScheduler, Trigger, Job, JobDetail, JobDataMap, Calendar

Method Summary

Modifier and Type	Method and Description
java.util.List<OperableTrigger>	acquireNextTriggers(long noLaterThan, int maxCount, long timeWindow) Get a handle to the next trigger to be fired, and mark it as 'reserved' by the calling scheduler.
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	clearAllSchedulingData() Clear (delete!) all scheduling data - all Jobs, Triggers Calendars.
long	getAcquireRetryDelay(int failureCount) Get the amount of time (in ms) to wait when accessing this job store repeatedly fails.
java.util.List<java.lang.String>	getCalendarNames() Get the names of all of the Calendar s in the JobStore.
long	getEstimatedTimeToReleaseAndAcquireTrigger() How long (in milliseconds) the JobStore implementation estimates that it will take to release a trigger and acquire a new one.
java.util.List<java.lang.String>	getJobGroupNames() Get the names of all of the Job groups.
java.util.Set<JobKey>	getJobKeys(GroupMatcher<JobKey> matcher) Get the keys of all of the Job s that have the given group name.
int	getNumberOfCalendars() Get the number of Calendar s that are stored in the JobsStore.
int	getNumberOfJobs() Get the number of Job s that are stored in the JobsStore.
int	getNumberOfTriggers() Get the number of Trigger s that are stored in the JobsStore.
java.util.Set<java.lang.String>	getPausedTriggerGroups()
java.util.List<java.lang.String>	getTriggerGroupNames() Get the names of all of the Trigger groups.
java.util.Set<TriggerKey>	getTriggerKeys(GroupMatcher<TriggerKey> matcher) Get the names of all of the Trigger s that have the given group name.
java.util.List<OperableTrigger>	getTriggersForJob(JobKey jobKey) Get all of the Triggers that are associated to the given Job.
Trigger.TriggerState	getTriggerState(TriggerKey triggerKey) Get the current state of the identified Trigger.
void	initialize(ClassLoadHelper loadHelper, SchedulerSignaler signaler) Called by the QuartzScheduler before the JobStore is used, in order to give the it a chance to initialize.
boolean	isClustered() Whether or not the JobStore implementation is clustered.
void	pauseAll() Pause all triggers - equivalent of calling pauseTriggerGroup(group) on every group.
void	pauseJob(JobKey jobKey) Pause the Job with the given name - by pausing all of its current Triggers.
java.util.Collection<java.lang.String>	pauseJobs(GroupMatcher<JobKey> groupMatcher) Pause all of the Jobs in the given group - by pausing all of their Triggers.
void	pauseTrigger(TriggerKey triggerKey) Pause the Trigger with the given key.
java.util.Collection<java.lang.String>	pauseTriggers(GroupMatcher<TriggerKey> matcher) Pause all of the Triggers in the given group.
void	releaseAcquiredTrigger(OperableTrigger trigger) Inform the JobStore that the scheduler no longer plans to fire the given Trigger, that it had previously acquired (reserved).
boolean	removeCalendar(java.lang.String calName) Remove (delete) the Calendar with the given name.
boolean	removeJob(JobKey jobKey) Remove (delete) the Job with the given key, and any Trigger s that reference it.
boolean	removeJobs(java.util.List<JobKey> jobKeys)
boolean	removeTrigger(TriggerKey triggerKey) Remove (delete) the Trigger with the given key.
boolean	removeTriggers(java.util.List<TriggerKey> triggerKeys)
boolean	replaceTrigger(TriggerKey triggerKey, OperableTrigger newTrigger) Remove (delete) the Trigger with the given key, and store the new given one - which must be associated with the same job.
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 - equivalent of calling resumeTriggerGroup(group) on every group.
void	resumeJob(JobKey jobKey) Resume (un-pause) the Job with the given key.
java.util.Collection<java.lang.String>	resumeJobs(GroupMatcher<JobKey> matcher) Resume (un-pause) all of the Jobs in the given group.
void	resumeTrigger(TriggerKey triggerKey) Resume (un-pause) the Trigger with the given key.
java.util.Collection<java.lang.String>	resumeTriggers(GroupMatcher<TriggerKey> matcher) Resume (un-pause) all of the Triggers in the given group.
Calendar	retrieveCalendar(java.lang.String calName) Retrieve the given Trigger.
JobDetail	retrieveJob(JobKey jobKey) Retrieve the JobDetail for the given Job.
OperableTrigger	retrieveTrigger(TriggerKey triggerKey) Retrieve the given Trigger.
void	schedulerPaused() Called by the QuartzScheduler to inform the JobStore that the scheduler has been paused.
void	schedulerResumed() Called by the QuartzScheduler to inform the JobStore that the scheduler has resumed after being paused.
void	schedulerStarted() Called by the QuartzScheduler to inform the JobStore that the scheduler has started.
void	setInstanceId(java.lang.String schedInstId) Inform the JobStore of the Scheduler instance's Id, prior to initialize being invoked.
void	setInstanceName(java.lang.String schedName) Inform the JobStore of the Scheduler instance's name, prior to initialize being invoked.
void	setThreadPoolSize(int poolSize) Tells the JobStore the pool size used to execute jobs
void	shutdown() Called by the QuartzScheduler to inform the JobStore that it should free up all of it's resources because the scheduler is shutting down.
void	storeCalendar(java.lang.String name, Calendar calendar, boolean replaceExisting, boolean updateTriggers) Store the given Calendar.
void	storeJob(JobDetail newJob, boolean replaceExisting) Store the given JobDetail.
void	storeJobAndTrigger(JobDetail newJob, OperableTrigger newTrigger) Store the given JobDetail and Trigger.
void	storeJobsAndTriggers(java.util.Map<JobDetail,java.util.Set<? extends Trigger>> triggersAndJobs, boolean replace)
void	storeTrigger(OperableTrigger newTrigger, boolean replaceExisting) Store the given Trigger.
boolean	supportsPersistence()
void	triggeredJobComplete(OperableTrigger trigger, JobDetail jobDetail, Trigger.CompletedExecutionInstruction triggerInstCode) Inform the JobStore that the scheduler has completed the firing of the given Trigger (and the execution of its associated Job completed, threw an exception, or was vetoed), and that the JobDataMap in the given JobDetail should be updated if the Job is stateful.
java.util.List<TriggerFiredResult>	triggersFired(java.util.List<OperableTrigger> triggers) Inform the JobStore that the scheduler is now firing the given Trigger (executing its associated Job), that it had previously acquired (reserved).

Method Detail

initialize

void initialize(ClassLoadHelper loadHelper,
                SchedulerSignaler signaler)
         throws SchedulerConfigException

Called by the QuartzScheduler before the JobStore is used, in order to give the it a chance to initialize.

Throws:

SchedulerConfigException

schedulerStarted

void schedulerStarted()
               throws SchedulerException

Called by the QuartzScheduler to inform the JobStore that the scheduler has started.

Throws:

SchedulerException

schedulerPaused

void schedulerPaused()

Called by the QuartzScheduler to inform the JobStore that the scheduler has been paused.

schedulerResumed

void schedulerResumed()

Called by the QuartzScheduler to inform the JobStore that the scheduler has resumed after being paused.

shutdown

void shutdown()

Called by the QuartzScheduler to inform the JobStore that it should free up all of it's resources because the scheduler is shutting down.

supportsPersistence

boolean supportsPersistence()

getEstimatedTimeToReleaseAndAcquireTrigger

long getEstimatedTimeToReleaseAndAcquireTrigger()

How long (in milliseconds) the JobStore implementation estimates that it will take to release a trigger and acquire a new one.

isClustered

boolean isClustered()

Whether or not the JobStore implementation is clustered.

storeJobAndTrigger

void storeJobAndTrigger(JobDetail newJob,
                        OperableTrigger newTrigger)
                 throws ObjectAlreadyExistsException,
                        JobPersistenceException

Store the given JobDetail and Trigger.

Parameters:

newJob - The JobDetail to be stored.

newTrigger - The Trigger to be stored.

Throws:

ObjectAlreadyExistsException - if a Job with the same name/group already exists.

JobPersistenceException

storeJob

void storeJob(JobDetail newJob,
              boolean replaceExisting)
       throws ObjectAlreadyExistsException,
              JobPersistenceException

Store the given JobDetail.

Parameters:

newJob - The JobDetail to be stored.

replaceExisting - If true, any Job existing in the JobStore with the same name and group should be over-written.

Throws:

ObjectAlreadyExistsException - if a Job with the same name/group already exists, and replaceExisting is set to false.

JobPersistenceException

storeJobsAndTriggers

void storeJobsAndTriggers(java.util.Map<JobDetail,java.util.Set<? extends Trigger>> triggersAndJobs,
                          boolean replace)
                   throws ObjectAlreadyExistsException,
                          JobPersistenceException

Throws:

ObjectAlreadyExistsException

JobPersistenceException

removeJob

boolean removeJob(JobKey jobKey)
           throws JobPersistenceException

Remove (delete) the Job with the given key, and any Trigger s that reference it.

If removal of the Job results in an empty group, the group should be removed from the JobStore's list of known group names.

Returns:

true if a Job with the given name and group was found and removed from the store.

Throws:

JobPersistenceException

removeJobs

boolean removeJobs(java.util.List<JobKey> jobKeys)
            throws JobPersistenceException

Throws:

JobPersistenceException

retrieveJob

JobDetail retrieveJob(JobKey jobKey)
               throws JobPersistenceException

Retrieve the JobDetail for the given Job.

Returns:

The desired Job, or null if there is no match.

Throws:

JobPersistenceException

storeTrigger

void storeTrigger(OperableTrigger newTrigger,
                  boolean replaceExisting)
           throws ObjectAlreadyExistsException,
                  JobPersistenceException

Store the given Trigger.

Parameters:

newTrigger - The Trigger to be stored.

replaceExisting - If true, any Trigger existing in the JobStore with the same name and group should be over-written.

Throws:

ObjectAlreadyExistsException - if a Trigger with the same name/group already exists, and replaceExisting is set to false.

JobPersistenceException

See Also:

pauseTriggers(org.quartz.impl.matchers.GroupMatcher)

removeTrigger

boolean removeTrigger(TriggerKey triggerKey)
               throws JobPersistenceException

Remove (delete) the Trigger with the given key.

If removal of the Trigger results in an empty group, the group should be removed from the JobStore's list of known group names.

If removal of the Trigger results in an 'orphaned' Job that is not 'durable', then the Job should be deleted also.

Returns:

true if a Trigger with the given name and group was found and removed from the store.

Throws:

JobPersistenceException

removeTriggers

boolean removeTriggers(java.util.List<TriggerKey> triggerKeys)
                throws JobPersistenceException

Throws:

JobPersistenceException

replaceTrigger

boolean replaceTrigger(TriggerKey triggerKey,
                       OperableTrigger newTrigger)
                throws JobPersistenceException

Remove (delete) the Trigger with the given key, and store the new given one - which must be associated with the same job.

Parameters:

newTrigger - The new Trigger to be stored.

Returns:

true if a Trigger with the given name and group was found and removed from the store.

Throws:

JobPersistenceException

retrieveTrigger

OperableTrigger retrieveTrigger(TriggerKey triggerKey)
                         throws JobPersistenceException

Retrieve the given Trigger.

Returns:

The desired Trigger, or null if there is no match.

Throws:

JobPersistenceException

checkExists

boolean checkExists(JobKey jobKey)
             throws JobPersistenceException

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:

JobPersistenceException

checkExists

boolean checkExists(TriggerKey triggerKey)
             throws JobPersistenceException

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:

JobPersistenceException

clearAllSchedulingData

void clearAllSchedulingData()
                     throws JobPersistenceException

Clear (delete!) all scheduling data - all Jobs, Triggers Calendars.

Throws:

JobPersistenceException

storeCalendar

void storeCalendar(java.lang.String name,
                   Calendar calendar,
                   boolean replaceExisting,
                   boolean updateTriggers)
            throws ObjectAlreadyExistsException,
                   JobPersistenceException

Store the given Calendar.

Parameters:

calendar - The Calendar to be stored.

replaceExisting - If true, any Calendar existing in the JobStore with the same name and group should be over-written.

updateTriggers - If true, any Triggers existing in the JobStore that reference an existing Calendar with the same name with have their next fire time re-computed with the new Calendar.

Throws:

ObjectAlreadyExistsException - if a Calendar with the same name already exists, and replaceExisting is set to false.

JobPersistenceException

removeCalendar

boolean removeCalendar(java.lang.String calName)
                throws JobPersistenceException

Remove (delete) the Calendar with the given name.

If removal of the Calendar would result in Triggers pointing to non-existent calendars, then a JobPersistenceException will be thrown.

*

Parameters:

calName - The name of the Calendar to be removed.

Returns:

true if a Calendar with the given name was found and removed from the store.

Throws:

JobPersistenceException

retrieveCalendar

Calendar retrieveCalendar(java.lang.String calName)
                   throws JobPersistenceException

Retrieve the given Trigger.

Parameters:

calName - The name of the Calendar to be retrieved.

Returns:

The desired Calendar, or null if there is no match.

Throws:

JobPersistenceException

getNumberOfJobs

int getNumberOfJobs()
             throws JobPersistenceException

Get the number of Job s that are stored in the JobsStore.

Throws:

JobPersistenceException

getNumberOfTriggers

int getNumberOfTriggers()
                 throws JobPersistenceException

Get the number of Trigger s that are stored in the JobsStore.

Throws:

JobPersistenceException

getNumberOfCalendars

int getNumberOfCalendars()
                  throws JobPersistenceException

Get the number of Calendar s that are stored in the JobsStore.

Throws:

JobPersistenceException

getJobKeys

java.util.Set<JobKey> getJobKeys(GroupMatcher<JobKey> matcher)
                          throws JobPersistenceException

Get the keys of all of the Job s that have the given group name.

If there are no jobs in the given group name, the result should be an empty collection (not null).

Throws:

JobPersistenceException

getTriggerKeys

java.util.Set<TriggerKey> getTriggerKeys(GroupMatcher<TriggerKey> matcher)
                                  throws JobPersistenceException

Get the names of all of the Trigger s that have the given group name.

If there are no triggers in the given group name, the result should be a zero-length array (not null).

Throws:

JobPersistenceException

getJobGroupNames

java.util.List<java.lang.String> getJobGroupNames()
                                           throws JobPersistenceException

Get the names of all of the Job groups.

If there are no known group names, the result should be a zero-length array (not null).

Throws:

JobPersistenceException

getTriggerGroupNames

java.util.List<java.lang.String> getTriggerGroupNames()
                                               throws JobPersistenceException

Get the names of all of the Trigger groups.

If there are no known group names, the result should be a zero-length array (not null).

Throws:

JobPersistenceException

getCalendarNames

java.util.List<java.lang.String> getCalendarNames()
                                           throws JobPersistenceException

Get the names of all of the Calendar s in the JobStore.

If there are no Calendars in the given group name, the result should be a zero-length array (not null).

Throws:

JobPersistenceException

getTriggersForJob

java.util.List<OperableTrigger> getTriggersForJob(JobKey jobKey)
                                           throws JobPersistenceException

Get all of the Triggers that are associated to the given Job.

If there are no matches, a zero-length array should be returned.

Throws:

JobPersistenceException

getTriggerState

Trigger.TriggerState getTriggerState(TriggerKey triggerKey)
                              throws JobPersistenceException

Get the current state of the identified Trigger.

Throws:

JobPersistenceException

See Also:

Trigger.TriggerState

resetTriggerFromErrorState

void resetTriggerFromErrorState(TriggerKey triggerKey)
                         throws JobPersistenceException

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:

JobPersistenceException

pauseTrigger

void pauseTrigger(TriggerKey triggerKey)
           throws JobPersistenceException

Pause the Trigger with the given key.

Throws:

JobPersistenceException

See Also:

resumeTrigger(TriggerKey)

pauseTriggers

java.util.Collection<java.lang.String> pauseTriggers(GroupMatcher<TriggerKey> matcher)
                                              throws JobPersistenceException

Pause all of the Triggers in the given group.

The JobStore should "remember" that the group is paused, and impose the pause on any new triggers that are added to the group while the group is paused.

Throws:

JobPersistenceException

See Also:

resumeTriggers(GroupMatcher)

pauseJob

void pauseJob(JobKey jobKey)
       throws JobPersistenceException

Pause the Job with the given name - by pausing all of its current Triggers.

Throws:

JobPersistenceException

See Also:

resumeJob(JobKey)

pauseJobs

java.util.Collection<java.lang.String> pauseJobs(GroupMatcher<JobKey> groupMatcher)
                                          throws JobPersistenceException

Pause all of the Jobs in the given group - by pausing all of their Triggers.

The JobStore should "remember" that the group is paused, and impose the pause on any new jobs that are added to the group while the group is paused.

Throws:

JobPersistenceException

See Also:

resumeJobs(GroupMatcher)

resumeTrigger

void resumeTrigger(TriggerKey triggerKey)
            throws JobPersistenceException

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:

JobPersistenceException

See Also:

pauseTrigger(TriggerKey)

resumeTriggers

java.util.Collection<java.lang.String> resumeTriggers(GroupMatcher<TriggerKey> matcher)
                                               throws JobPersistenceException

Resume (un-pause) all of the Triggers in the given group.

If any Trigger missed one or more fire-times, then the Trigger's misfire instruction will be applied.

Throws:

JobPersistenceException

See Also:

pauseTriggers(GroupMatcher)

getPausedTriggerGroups

java.util.Set<java.lang.String> getPausedTriggerGroups()
                                                throws JobPersistenceException

Throws:

JobPersistenceException

resumeJob

void resumeJob(JobKey jobKey)
        throws JobPersistenceException

Resume (un-pause) the Job 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:

JobPersistenceException

See Also:

pauseJob(JobKey)

resumeJobs

java.util.Collection<java.lang.String> resumeJobs(GroupMatcher<JobKey> matcher)
                                           throws JobPersistenceException

Resume (un-pause) all of the Jobs in the given group.

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.

Throws:

JobPersistenceException

See Also:

pauseJobs(GroupMatcher)

pauseAll

void pauseAll()
       throws JobPersistenceException

Pause all triggers - equivalent of calling pauseTriggerGroup(group) on every group.

When resumeAll() is called (to un-pause), trigger misfire instructions WILL be applied.

Throws:

JobPersistenceException

See Also:

resumeAll(), pauseTriggers(GroupMatcher)

resumeAll

void resumeAll()
        throws JobPersistenceException

Resume (un-pause) all triggers - equivalent of 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:

JobPersistenceException

See Also:

pauseAll()

acquireNextTriggers

java.util.List<OperableTrigger> acquireNextTriggers(long noLaterThan,
                                                    int maxCount,
                                                    long timeWindow)
                                             throws JobPersistenceException

Get a handle to the next trigger to be fired, and mark it as 'reserved' by the calling scheduler.

Parameters:

noLaterThan - If > 0, the JobStore should only return a Trigger that will fire no later than the time represented in this value as milliseconds.

Throws:

JobPersistenceException

See Also:

releaseAcquiredTrigger(OperableTrigger)

releaseAcquiredTrigger

void releaseAcquiredTrigger(OperableTrigger trigger)

Inform the JobStore that the scheduler no longer plans to fire the given Trigger, that it had previously acquired (reserved).

triggersFired

java.util.List<TriggerFiredResult> triggersFired(java.util.List<OperableTrigger> triggers)
                                          throws JobPersistenceException

Inform the JobStore that the scheduler is now firing the given Trigger (executing its associated Job), that it had previously acquired (reserved).

Returns:

may return null if all the triggers or their calendars no longer exist, or if the trigger was not successfully put into the 'executing' state. Preference is to return an empty list if none of the triggers could be fired.

Throws:

JobPersistenceException

triggeredJobComplete

void triggeredJobComplete(OperableTrigger trigger,
                          JobDetail jobDetail,
                          Trigger.CompletedExecutionInstruction triggerInstCode)

Inform the JobStore that the scheduler has completed the firing of the given Trigger (and the execution of its associated Job completed, threw an exception, or was vetoed), and that the JobDataMap in the given JobDetail should be updated if the Job is stateful.

setInstanceId

void setInstanceId(java.lang.String schedInstId)

Inform the JobStore of the Scheduler instance's Id, prior to initialize being invoked.

Since:

1.7

setInstanceName

void setInstanceName(java.lang.String schedName)

Inform the JobStore of the Scheduler instance's name, prior to initialize being invoked.

Since:

1.7

setThreadPoolSize

void setThreadPoolSize(int poolSize)

Tells the JobStore the pool size used to execute jobs

Parameters:

poolSize - amount of threads allocated for job execution

Since:

2.0

getAcquireRetryDelay

long getAcquireRetryDelay(int failureCount)

Get the amount of time (in ms) to wait when accessing this job store repeatedly fails. Called by the executor thread(s) when calls to acquireNextTriggers(long, int, long) fail more than once in succession, and the thread thus wants to wait a bit before trying again, to not consume 100% CPU, write huge amounts of errors into logs, etc. in cases like the DB being offline/restarting. The delay returned by implementations should be between 20 and 600000 milliseconds.

Parameters:

failureCount - the number of successive failures seen so far

Returns:

the time (in milliseconds) to wait before trying again