Trigger (Sundial 2.1.2 API)

All Superinterfaces:

Cloneable, Comparable<Trigger>, Serializable

All Known Subinterfaces:

CronTrigger, MutableTrigger, OperableTrigger, SimpleTrigger

All Known Implementing Classes:

AbstractTrigger, CronTriggerImpl, SimpleTriggerImpl
```
public interface Trigger
extends Serializable, Cloneable, Comparable<Trigger>
```
The base interface with properties common to all Triggers - use TriggerBuilder to instantiate an actual Trigger.
Triggerss have a TriggerKey associated with them, which should uniquely identify them within a single Scheduler.

Triggers are the 'mechanism' by which Jobs are scheduled. Many Triggers can point to the same Job, but a single Trigger can only point to one Job.

Triggers can 'send' parameters/data to Jobs by placing contents into the JobDataMap on the Trigger.

Author:

James House

Nested Class Summary

Nested Classes
Modifier and Type	Interface and Description
`static class`	`Trigger.CompletedExecutionInstruction` `NOOP` Instructs the `Scheduler` that the `Trigger` has no further instructions.
`static class`	`Trigger.TriggerTimeComparator` A Comparator that compares trigger's next fire times, or in other words, sorts them according to earliest next fire time.

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`DEFAULT_PRIORITY` The default value for priority.
`static int`	`MISFIRE_INSTRUCTION_IGNORE_MISFIRE_POLICY` Instructs the `Scheduler` that the `Trigger` will never be evaluated for a misfire situation, and that the scheduler will simply try to fire it as soon as it can, and then update the Trigger as if it had fired at the proper time.
`static int`	`MISFIRE_INSTRUCTION_SMART_POLICY` Instructs the `Scheduler` that upon a mis-fire situation, the `updateAfterMisfire()` method will be called on the `Trigger` to determine the mis-fire instruction, which logic will be trigger-implementation-dependent.
`static long`	`serialVersionUID`

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`boolean`	`equals(Object other)` Trigger equality is based upon the equality of the TriggerKey.
`String`	`getCalendarName()` Get the name of the `Calendar` associated with this Trigger.
`String`	`getDescription()` Return the description given to the `Trigger` instance by its creator (if any).
`Date`	`getEndTime()` Get the time at which the `Trigger` should quit repeating - regardless of any remaining repeats (based on the trigger's particular repeat settings).
`Date`	`getFinalFireTime()` Returns the last time at which the `Trigger` will fire, if the Trigger will repeat indefinitely, null will be returned.
`Date`	`getFireTimeAfter(Date afterTime)` Returns the next time at which the `Trigger` will fire, after the given time.
`JobDataMap`	`getJobDataMap()` Get the `JobDataMap` that is associated with the `Trigger`.
`String`	`getJobName()` Get the name of the associated `JobDetail`.
`int`	`getMisfireInstruction()` Get the instruction the `Scheduler` should be given for handling misfire situations for this `Trigger`- the concrete `Trigger` type that you are using will have defined a set of additional `MISFIRE_INSTRUCTION_XXX` constants that may be set as this property's value.
`String`	`getName()` Get the name of this `Trigger`.
`Date`	`getNextFireTime()` Returns the next time at which the `Trigger` is scheduled to fire.
`Date`	`getPreviousFireTime()` Returns the previous time at which the `Trigger` fired.
`int`	`getPriority()` The priority of a `Trigger` acts as a tiebreaker such that if two `Trigger`s have the same scheduled fire time, then the one with the higher priority will get first access to a worker thread.
`Date`	`getStartTime()` Get the time at which the `Trigger` should occur.
`boolean`	`mayFireAgain()` Used by the `Scheduler` to determine whether or not it is possible for this `Trigger` to fire again.

Methods inherited from interface java.lang.Comparable
compareTo

- Field Detail
  - serialVersionUID
```
static final long serialVersionUID
```
    See Also:
    
    Constant Field Values
  - MISFIRE_INSTRUCTION_SMART_POLICY
```
static final int MISFIRE_INSTRUCTION_SMART_POLICY
```
    Instructs the Scheduler that upon a mis-fire situation, the updateAfterMisfire() method will be called on the Trigger to determine the mis-fire instruction, which logic will be trigger-implementation-dependent.
    In order to see if this instruction fits your needs, you should look at the documentation for the getSmartMisfirePolicy() method on the particular Trigger implementation you are using.
    
    See Also:
    
    Constant Field Values
  - MISFIRE_INSTRUCTION_IGNORE_MISFIRE_POLICY
```
static final int MISFIRE_INSTRUCTION_IGNORE_MISFIRE_POLICY
```
    Instructs the Scheduler that the Trigger will never be evaluated for a misfire situation, and that the scheduler will simply try to fire it as soon as it can, and then update the Trigger as if it had fired at the proper time.
    NOTE: if a trigger uses this instruction, and it has missed several of its scheduled firings, then
    
    See Also:
    
    Constant Field Values
  - DEFAULT_PRIORITY
```
static final int DEFAULT_PRIORITY
```
    The default value for priority.
    
    See Also:
    
    Constant Field Values
- Method Detail
  - getName
```
String getName()
```
    Get the name of this Trigger.
  - getJobName
```
String getJobName()
```
    Get the name of the associated JobDetail.
  - getDescription
```
String getDescription()
```
    Return the description given to the Trigger instance by its creator (if any).
    
    Returns:
    
    null if no description was set.
  - getCalendarName
```
String getCalendarName()
```
    Get the name of the Calendar associated with this Trigger.
    
    Returns:
    
    null if there is no associated Calendar.
  - getJobDataMap
```
JobDataMap getJobDataMap()
```
    Get the JobDataMap that is associated with the Trigger.
    Changes made to this map during job execution are not re-persisted, and in fact typically result in an IllegalStateException.
  - getPriority
```
int getPriority()
```
    The priority of a Trigger acts as a tiebreaker such that if two Triggers have the same scheduled fire time, then the one with the higher priority will get first access to a worker thread.
    If not explicitly set, the default value is 5.
    
    See Also:
    
    DEFAULT_PRIORITY
  - mayFireAgain
```
boolean mayFireAgain()
```
    Used by the Scheduler to determine whether or not it is possible for this Trigger to fire again.
    If the returned value is false then the Scheduler may remove the Trigger from the JobStore.
  - getStartTime
```
Date getStartTime()
```
    Get the time at which the Trigger should occur.
  - getEndTime
```
Date getEndTime()
```
    Get the time at which the Trigger should quit repeating - regardless of any remaining repeats (based on the trigger's particular repeat settings).
    
    See Also:
    
    getFinalFireTime()
  - getNextFireTime
```
Date getNextFireTime()
```
    Returns the next time at which the Trigger is scheduled to fire. If the trigger will not fire again, null will be returned. Note that the time returned can possibly be in the past, if the time that was computed for the trigger to next fire has already arrived, but the scheduler has not yet been able to fire the trigger (which would likely be due to lack of resources e.g. threads).
    The value returned is not guaranteed to be valid until after the Trigger has been added to the scheduler.
    
    See Also:
    
    TriggerUtils#computeFireTimesBetween(Trigger, Calendar, Date, Date)
  - getPreviousFireTime
```
Date getPreviousFireTime()
```
    Returns the previous time at which the Trigger fired. If the trigger has not yet fired, null will be returned.
  - getFireTimeAfter
```
Date getFireTimeAfter(Date afterTime)
```
    Returns the next time at which the Trigger will fire, after the given time. If the trigger will not fire after the given time, null will be returned.
  - getFinalFireTime
```
Date getFinalFireTime()
```
    Returns the last time at which the Trigger will fire, if the Trigger will repeat indefinitely, null will be returned.
    Note that the return time *may* be in the past.
  - getMisfireInstruction
```
int getMisfireInstruction()
```
    Get the instruction the Scheduler should be given for handling misfire situations for this Trigger- the concrete Trigger type that you are using will have defined a set of additional MISFIRE_INSTRUCTION_XXX constants that may be set as this property's value.
    If not explicitly set, the default value is MISFIRE_INSTRUCTION_SMART_POLICY.
    
    See Also:
    
    MISFIRE_INSTRUCTION_SMART_POLICY, #updateAfterMisfire(Calendar), SimpleTrigger, CronTrigger
  - equals
```
boolean equals(Object other)
```
    Trigger equality is based upon the equality of the TriggerKey.
    
    Overrides:
    
    equals in class Object
    
    Returns:
    
    true if the key of this Trigger equals that of the given Trigger.

Interface Trigger

Nested Class Summary

Field Summary

Method Summary

Methods inherited from interface java.lang.Comparable

Field Detail

serialVersionUID

MISFIRE_INSTRUCTION_SMART_POLICY

MISFIRE_INSTRUCTION_IGNORE_MISFIRE_POLICY

DEFAULT_PRIORITY

Method Detail

getName

getJobName

getDescription

getCalendarName

getJobDataMap

getPriority

mayFireAgain

getStartTime

getEndTime

getNextFireTime

getPreviousFireTime

getFireTimeAfter

getFinalFireTime

getMisfireInstruction

equals