org.apache.oozie.command
Class KillTransitionXCommand

java.lang.Object
  org.apache.oozie.command.XCommand<T>
      org.apache.oozie.command.TransitionXCommand<Void>
          org.apache.oozie.command.KillTransitionXCommand

All Implemented Interfaces:

Callable<Void>, XCallable<Void>

Direct Known Subclasses:

BundleKillXCommand, CoordKillXCommand

public abstract class KillTransitionXCommand
extends TransitionXCommand<Void>

This is transition Base commands for all the jobs.

Field Summary

Fields inherited from class org.apache.oozie.command.TransitionXCommand

insertList, job, updateList

Fields inherited from class org.apache.oozie.command.XCommand

DEFAULT_LOCK_TIMEOUT, DEFAULT_REQUEUE_DELAY, dryrun, instrumentation, INSTRUMENTATION_GROUP, LOG, logInfo

Constructor Summary

KillTransitionXCommand(String name, String type, int priority)

Method Summary

protected Void	execute() Command execution body.
abstract void	killChildren()
void	transitToNext() Transit to the next status based on the result of the Job.

Methods inherited from class org.apache.oozie.command.TransitionXCommand

getJob, notifyParent, performWrites, setJob, updateJob

Methods inherited from class org.apache.oozie.command.XCommand

call, eagerLoadState, eagerVerifyPrecondition, executeInterrupts, getCreatedTime, getEntityKey, getInstrumentation, getKey, getLockTimeOut, getLog, getName, getPriority, getRequeueDelay, getType, inInterruptMode, isLockRequired, isReQueueRequired, loadState, queue, queue, resetUsed, setInterruptMode, verifyPrecondition

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

KillTransitionXCommand

public KillTransitionXCommand(String name,
                              String type,
                              int priority)

Method Detail

killChildren

public abstract void killChildren()
                           throws CommandException

Throws:

CommandException

transitToNext

public final void transitToNext()

Description copied from class: TransitionXCommand

Transit to the next status based on the result of the Job.

Specified by:

transitToNext in class TransitionXCommand<Void>

execute

protected Void execute()
                throws CommandException

Description copied from class: XCommand

Command execution body.

This method will be invoked after the {link #loadState} and {link #verifyPrecondition} methods.

If the command requires locking, this method will be invoked ONLY if the lock has been acquired.

Overrides:

execute in class TransitionXCommand<Void>

Returns:

a return value from the execution of the command, only meaningful if the command is executed synchronously.

Throws:

CommandException - thrown if the command execution failed.