org.gridgain.grid.kernal.processors.hadoop.taskexecutor

Class GridHadoopTaskExecutorAdapter

java.lang.Object

org.gridgain.grid.kernal.processors.hadoop.GridHadoopComponent

org.gridgain.grid.kernal.processors.hadoop.taskexecutor.GridHadoopTaskExecutorAdapter

Direct Known Subclasses:

GridHadoopEmbeddedTaskExecutor, GridHadoopExternalTaskExecutor

public abstract class GridHadoopTaskExecutorAdapter
extends GridHadoopComponent

Common superclass for task executor.

Field Summary

Fields inherited from class org.gridgain.grid.kernal.processors.hadoop.GridHadoopComponent

ctx, log

Constructor Summary

Constructors

Constructor and Description
GridHadoopTaskExecutorAdapter()

Method Summary

Methods

Modifier and Type	Method and Description
abstract void	cancelTasks(org.gridgain.grid.hadoop.GridHadoopJobId jobId) Cancels all currently running tasks for given job ID and cancels scheduled execution of tasks for this job ID.
abstract void	onJobStateChanged(GridHadoopJobMetadata meta) On job state change callback;
abstract void	run(org.gridgain.grid.hadoop.GridHadoopJob job, Collection<org.gridgain.grid.hadoop.GridHadoopTaskInfo> tasks) Runs tasks.

Methods inherited from class org.gridgain.grid.kernal.processors.hadoop.GridHadoopComponent

onKernalStart, onKernalStop, start, stop

Methods inherited from class java.lang.Object

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

Constructor Detail

GridHadoopTaskExecutorAdapter

public GridHadoopTaskExecutorAdapter()

Method Detail

run

public abstract void run(org.gridgain.grid.hadoop.GridHadoopJob job,
       Collection<org.gridgain.grid.hadoop.GridHadoopTaskInfo> tasks)
                  throws org.gridgain.grid.GridException

Runs tasks.

Parameters:

job - Job.

tasks - Tasks.

Throws:

org.gridgain.grid.GridException - If failed.

cancelTasks

public abstract void cancelTasks(org.gridgain.grid.hadoop.GridHadoopJobId jobId)
                          throws org.gridgain.grid.GridException

Cancels all currently running tasks for given job ID and cancels scheduled execution of tasks for this job ID.

It is guaranteed that this method will not be called concurrently with run(GridHadoopJob, Collection) method. No more job submissions will be performed via run(GridHadoopJob, Collection) method for given job ID after this method is called.

Parameters:

jobId - Job ID to cancel.

Throws:

org.gridgain.grid.GridException

onJobStateChanged

public abstract void onJobStateChanged(GridHadoopJobMetadata meta)
                                throws org.gridgain.grid.GridException

On job state change callback;

Parameters:

meta - Job metadata.

Throws:

org.gridgain.grid.GridException