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## org.quartz
Interface Job

All Known Subinterfaces:
  InterruptableJob, StatefulJob

All Known Implementing Classes:
  DirectoryScanJob, EJB3InvokerJob, EJBInvokerJob, FileScanJob, JMXInvokerJob, NativeJob, NoOpJob, SendDestinationMessageJob, SendMailJob, SendQueueMessageJob, SendTopicMessageJob

    public interface Job

The interface to be implemented by classes which represent a 'job' to be performed.

Instances of `Job` must have a `public` no-argument constructor.

`JobDataMap` provides a mechanism for 'instance member data' that may be required by some implementations of this interface.

Author:
  James House
See Also:
  `JobDetail`, `JobBuilder`, `ExecuteInJTATransaction`, `DisallowConcurrentExecution`, `PersistJobDataAfterExecution`, `Trigger`, `Scheduler`

Method Summary
`void` | `execute(JobExecutionContext context)` Called by the ``Scheduler`` when a ``Trigger`` fires that is associated with the `Job`.

Method Detail

### execute

    void execute(JobExecutionContext context)
                 throws JobExecutionException

  Called by the ``Scheduler`` when a ``Trigger`` fires that is associated with the `Job`.

  The implementation may wish to set a `result` object on the `JobExecutionContext` before this method exits. The result itself is meaningless to Quartz, but may be informative to ``JobListener`s` or ``TriggerListener`s` that are watching the job's execution.

  Throws:
    `JobExecutionException` - if there is an exception while executing the job.

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