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## org.quartz
Class JobExecutionContext

    java.lang.Object
      org.quartz.JobExecutionContext

All Implemented Interfaces:
  Serializable

public class JobExecutionContext
extends Object
implements Serializable

A context bundle containing handles to various environment information, that is given to a ``JobDetail`` instance as it is executed, and to a ``Trigger`` instance after the execution completes.

The `JobDataMap` found on this object (via the `getMergedJobDataMap()` method) serves as a convenience - it is a merge of the `JobDataMap` found on the `JobDetail` and the one found on the `Trigger`, with the value in the latter overriding any same-named values in the former. It is thus considered a 'best practice' that the execute code of a Job retrieve data from the JobDataMap found on this object NOTE: Do not expect value 'set' into this JobDataMap to somehow be set back onto a `StatefulJob`'s own JobDataMap.

`JobExecutionContext` s are also returned from the `Scheduler.getCurrentlyExecutingJobs()` method. These are the same instances as those past into the jobs that are currently executing within the scheduler. The exception to this is when your application is using Quartz remotely (i.e. via RMI) - in which case you get a clone of the `JobExecutionContext`s, and their references to the `Scheduler` and `Job` instances have been lost (a clone of the `JobDetail` is still available - just not a handle to the job instance that is running).

Author:
  James House
See Also:
  `getJobDetail()`, `getScheduler()`, `getMergedJobDataMap()`, `Job`, `Trigger`, `JobDataMap`, Serialized Form

Constructor Summary
`JobExecutionContext(Scheduler scheduler, TriggerFiredBundle firedBundle, Job job)` Create a JobExcecutionContext with the given context data.

Method Summary
`Object` | `get(Object key)` Get the value with the given key from the context's data map.
`Calendar` | `getCalendar()` Get a handle to the `Calendar` referenced by the `Trigger` instance that fired the `Job`.
`Date` | `getFireTime()` The actual time the trigger fired.
`JobDetail` | `getJobDetail()` Get the `JobDetail` associated with the `Job`.
`Job` | `getJobInstance()` Get the instance of the `Job` that was created for this execution.
`long` | `getJobRunTime()` The amount of time the job ran for (in milliseconds).
`JobDataMap` | `getMergedJobDataMap()` Get the convenience `JobDataMap` of this execution context.
`Date` | `getNextFireTime()`
`Date` | `getPreviousFireTime()`
`int` | `getRefireCount()`
`Object` | `getResult()` Returns the result (if any) that the `Job` set before its execution completed (the type of object set as the result is entirely up to the particular job).
`Date` | `getScheduledFireTime()` The scheduled time the trigger fired for.
`Scheduler` | `getScheduler()` Get a handle to the `Scheduler` instance that fired the `Job`.
`Trigger` | `getTrigger()` Get a handle to the `Trigger` instance that fired the `Job`.
`void` | `incrementRefireCount()`
`boolean` | `isRecovering()` If the `Job` is being re-executed because of a 'recovery' situation, this method will return `true`.
`void` | `put(Object key, Object value)` Put the specified value into the context's data map with the given key.
`void` | `setJobRunTime(long jobRunTime)`
`void` | `setResult(Object result)` Set the result (if any) of the `Job`'s execution (the type of object set as the result is entirely up to the particular job).
`String` | `toString()`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

### JobExecutionContext

    public JobExecutionContext(Scheduler scheduler,
                               TriggerFiredBundle firedBundle,
                               Job job)

  Create a JobExcecutionContext with the given context data.

Method Detail

### getScheduler

    public Scheduler getScheduler()

  Get a handle to the `Scheduler` instance that fired the `Job`.

### getTrigger

    public Trigger getTrigger()

  Get a handle to the `Trigger` instance that fired the `Job`.

### getCalendar

    public Calendar getCalendar()

  Get a handle to the `Calendar` referenced by the `Trigger` instance that fired the `Job`.

### isRecovering

    public boolean isRecovering()

  If the `Job` is being re-executed because of a 'recovery' situation, this method will return `true`.

### incrementRefireCount

    public void incrementRefireCount()

### getRefireCount

    public int getRefireCount()

### getMergedJobDataMap

    public JobDataMap getMergedJobDataMap()

  Get the convenience `JobDataMap` of this execution context.

  The `JobDataMap` found on this object serves as a convenience - it is a merge of the `JobDataMap` found on the `JobDetail` and the one found on the `Trigger`, with the value in the latter overriding any same-named values in the former. It is thus considered a 'best practice' that the execute code of a Job retrieve data from the JobDataMap found on this object

  NOTE: Do not expect value 'set' into this JobDataMap to somehow be set back onto a `StatefulJob`'s own JobDataMap.

  Attempts to change the contents of this map typically result in an `IllegalStateException`.

### getJobDetail

    public JobDetail getJobDetail()

  Get the `JobDetail` associated with the `Job`.

### getJobInstance

    public Job getJobInstance()

  Get the instance of the `Job` that was created for this execution.

  Note: The Job instance is not available through remote scheduler interfaces.

### getFireTime

    public Date getFireTime()

  The actual time the trigger fired. For instance the scheduled time may have been 10:00:00 but the actual fire time may have been 10:00:03 if the scheduler was too busy.

  Returns:
    Returns the fireTime.
  See Also:
    `getScheduledFireTime()`

### getScheduledFireTime

    public Date getScheduledFireTime()

  The scheduled time the trigger fired for. For instance the scheduled time may have been 10:00:00 but the actual fire time may have been 10:00:03 if the scheduler was too busy.

  Returns:
    Returns the scheduledFireTime.
  See Also:
    `getFireTime()`

### getPreviousFireTime

    public Date getPreviousFireTime()

### getNextFireTime

    public Date getNextFireTime()

### toString

    public String toString()

### getResult

    public Object getResult()

  Returns the result (if any) that the `Job` set before its execution completed (the type of object set as the result is entirely up to the particular job).

  The result itself is meaningless to Quartz, but may be informative to ``JobListener`s` or ``TriggerListener`s` that are watching the job's execution.

  Returns:
    Returns the result.

### setResult

    public void setResult(Object result)

  Set the result (if any) of the `Job`'s execution (the type of object set as the result is entirely up to the particular job).

  The result itself is meaningless to Quartz, but may be informative to ``JobListener`s` or ``TriggerListener`s` that are watching the job's execution.

  Returns:
    Returns the result.

### getJobRunTime

    public long getJobRunTime()

  The amount of time the job ran for (in milliseconds). The returned value will be -1 until the job has actually completed (or thrown an exception), and is therefore generally only useful to `JobListener`s and `TriggerListener`s.

  Returns:
    Returns the jobRunTime.

### setJobRunTime

    public void setJobRunTime(long jobRunTime)

  Parameters:
    `jobRunTime` - The jobRunTime to set.

### put

    public void put(Object key,
                    Object value)

  Put the specified value into the context's data map with the given key. Possibly useful for sharing data between listeners and jobs.

  NOTE: this data is volatile - it is lost after the job execution completes, and all TriggerListeners and JobListeners have been notified.

  Parameters:
    `key` -
    `value` -

### get

    public Object get(Object key)

  Get the value with the given key from the context's data map.

  Parameters:
    `key` -

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