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java.lang.Objectorg.apache.oozie.command.XCommand<T>
org.apache.oozie.command.TransitionXCommand<Void>
org.apache.oozie.command.StartTransitionXCommand
public abstract class StartTransitionXCommand
Transition command for start the job. The derived class has to override these following functions:
loadState() : load the job's and/or actions' state updateJob() : update job status and attributes StartChildren() : submit or queue commands to start children notifyParent() : update the status to upstream if any
Field Summary |
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Fields inherited from class org.apache.oozie.command.TransitionXCommand |
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insertList, job, updateList |
Fields inherited from class org.apache.oozie.command.XCommand |
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DEFAULT_LOCK_TIMEOUT, DEFAULT_REQUEUE_DELAY, dryrun, instrumentation, INSTRUMENTATION_GROUP, LOG, logInfo |
Constructor Summary | |
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StartTransitionXCommand(String name,
String type,
int priority)
The constructor for abstract class StartTransitionXCommand |
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StartTransitionXCommand(String name,
String type,
int priority,
boolean dryrun)
The constructor for abstract class StartTransitionXCommand |
Method Summary | |
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protected Void |
execute()
Command execution body. |
abstract void |
StartChildren()
Start actions associated with the job |
void |
transitToNext()
Transit to the next status based on the result of the Job. |
Methods inherited from class org.apache.oozie.command.TransitionXCommand |
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getJob, notifyParent, performWrites, setJob, updateJob |
Methods inherited from class org.apache.oozie.command.XCommand |
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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 |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public StartTransitionXCommand(String name, String type, int priority)
StartTransitionXCommand
name
- the command nametype
- the command typepriority
- the command prioritypublic StartTransitionXCommand(String name, String type, int priority, boolean dryrun)
StartTransitionXCommand
name
- the command nametype
- the command typepriority
- the command prioritydryrun
- true if dryrun is enableMethod Detail |
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public abstract void StartChildren() throws CommandException
CommandException
- thrown if failed to start actionspublic final void transitToNext()
TransitionXCommand
transitToNext
in class TransitionXCommand<Void>
protected Void execute() throws CommandException
XCommand
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.
execute
in class TransitionXCommand<Void>
CommandException
- thrown if the command execution failed.
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