This project has retired. For details please refer to its
Attic page .
MaterializeTransitionXCommand (Apache Oozie Core 3.3.2 API)
org.apache.oozie.command
Class MaterializeTransitionXCommand
java.lang.Object
org.apache.oozie.command.XCommand <T>
org.apache.oozie.command.TransitionXCommand <Void >
org.apache.oozie.command.MaterializeTransitionXCommand
All Implemented Interfaces: Callable <Void >, XCallable <Void >
Direct Known Subclasses: CoordMaterializeTransitionXCommand
public abstract class MaterializeTransitionXCommand extends TransitionXCommand <Void >
Transition command for materialize 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
Method Summary
protected Void
execute ()
Command execution body.
protected abstract void
materialize ()
Materialize the actions for current job
void
transitToNext ()
Transit to the next status based on the result of the Job.
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
MaterializeTransitionXCommand
public MaterializeTransitionXCommand (String name,
String type,
int priority)
The constructor for abstract class MaterializeTransitionXCommand
Parameters: name
- the command nametype
- the command typepriority
- the command priority
MaterializeTransitionXCommand
public MaterializeTransitionXCommand (String name,
String type,
int priority,
boolean dryrun)
The constructor for abstract class MaterializeTransitionXCommand
Parameters: name
- the command nametype
- the command typepriority
- the command prioritydryrun
- true if dryrun is enable
transitToNext
public void transitToNext ()
throws CommandException
Description copied from class: TransitionXCommand
Transit to the next status based on the result of the Job.
Specified by: transitToNext
in class TransitionXCommand <Void >
Throws:
CommandException
materialize
protected abstract void materialize ()
throws CommandException
Materialize the actions for current job
Throws:
CommandException
- thrown if failed to materialize
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.
Copyright © 2013 Apache Software Foundation . All Rights Reserved.