org.apache.oozie.command

Class KillTransitionXCommand<T>

java.lang.Object

org.apache.oozie.command.XCommand<T>

org.apache.oozie.command.TransitionXCommand<T>

org.apache.oozie.command.KillTransitionXCommand<T>

All Implemented Interfaces:

Callable<T>, XCallable<T>

Direct Known Subclasses:

BundleKillXCommand, CoordActionsKillXCommand, CoordKillXCommand

public abstract class KillTransitionXCommand<T>
extends TransitionXCommand<T>

This is transition Base commands for all the jobs.

Field Summary

Fields

Modifier and Type	Field and Description
protected T	ret

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, eventService, instrumentation, INSTRUMENTATION_GROUP, LOG

Constructor Summary

Constructors

Constructor and Description
KillTransitionXCommand(String name, String type, int priority)

Method Summary

Methods

Modifier and Type	Method and Description
protected T	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

generateEvents, 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, setLogInfo, toString, verifyPrecondition

Methods inherited from class java.lang.Object

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

Field Detail

ret

protected T ret

Constructor Detail

KillTransitionXCommand

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

Method Detail

killChildren

public abstract void killChildren()
                           throws CommandException

Throws:

CommandException

transitToNext

public 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<T>

execute

protected T 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<T>

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.