org.apache.oozie.command.coord

Class CoordWfActionInfoXCommand

java.lang.Object

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

org.apache.oozie.command.coord.CoordinatorXCommand<List<CoordinatorWfActionBean>>

org.apache.oozie.command.coord.CoordWfActionInfoXCommand

All Implemented Interfaces:

Callable<List<CoordinatorWfActionBean>>, XCallable<List<CoordinatorWfActionBean>>

public class CoordWfActionInfoXCommand
extends CoordinatorXCommand<List<CoordinatorWfActionBean>>

Field Summary

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
CoordWfActionInfoXCommand(String jobId, String actionName)
CoordWfActionInfoXCommand(String jobId, String actionName, int offset, int len)

Method Summary

Modifier and Type	Method and Description
protected List<CoordinatorWfActionBean>	execute() Command execution body.
String	getEntityKey() (non-Javadoc)
protected boolean	isLockRequired() (non-Javadoc)
protected void	loadState() (non-Javadoc)
protected void	verifyPrecondition() (non-Javadoc)

Methods inherited from class org.apache.oozie.command.coord.CoordinatorXCommand

generateEvent, generateEvent

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

call, eagerLoadState, eagerVerifyPrecondition, executeInterrupts, getCreatedTime, getInstrumentation, getKey, getLockTimeOut, getLog, getName, getPriority, getRequeueDelay, getType, inInterruptMode, isReQueueRequired, queue, queue, resetUsed, setInterruptMode, setLogInfo, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

CoordWfActionInfoXCommand

public CoordWfActionInfoXCommand(String jobId,
                                 String actionName)

CoordWfActionInfoXCommand

public CoordWfActionInfoXCommand(String jobId,
                                 String actionName,
                                 int offset,
                                 int len)

Method Detail

execute

protected List<CoordinatorWfActionBean> 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.

Specified by:

execute in class XCommand<List<CoordinatorWfActionBean>>

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.

loadState

protected void loadState()
                  throws CommandException

(non-Javadoc)

Specified by:

loadState in class XCommand<List<CoordinatorWfActionBean>>

Throws:

CommandException

See Also:

XCommand.loadState()

verifyPrecondition

protected void verifyPrecondition()
                           throws CommandException,
                                  PreconditionException

(non-Javadoc)

Specified by:

verifyPrecondition in class XCommand<List<CoordinatorWfActionBean>>

Throws:

CommandException - thrown if the precondition is not met.

PreconditionException

See Also:

no-op

isLockRequired

protected boolean isLockRequired()

(non-Javadoc)

Specified by:

isLockRequired in class XCommand<List<CoordinatorWfActionBean>>

Returns:

true/false

See Also:

XCommand.isLockRequired()

getEntityKey

public String getEntityKey()

(non-Javadoc)

Specified by:

getEntityKey in interface XCallable<List<CoordinatorWfActionBean>>

Specified by:

getEntityKey in class XCommand<List<CoordinatorWfActionBean>>

Returns:

the entity key for the command.

See Also:

XCommand.getEntityKey()