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

Class GridHadoopEmbeddedTaskExecutor

java.lang.Object

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

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

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

public class GridHadoopEmbeddedTaskExecutor
extends GridHadoopTaskExecutorAdapter

Task executor.

Field Summary

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

ctx, log

Constructor Summary

Constructors

Constructor and Description
GridHadoopEmbeddedTaskExecutor()

Method Summary

Methods

Modifier and Type	Method and Description
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.
void	onJobStateChanged(GridHadoopJobMetadata meta) On job state change callback;
void	onKernalStart() Callback invoked when all grid components are started.
void	onKernalStop(boolean cancel) Callback invoked before all grid components are stopped.
void	run(org.gridgain.grid.hadoop.GridHadoopJob job, Collection<org.gridgain.grid.hadoop.GridHadoopTaskInfo> tasks) Runs tasks.
void	stop(boolean cancel) Stops manager.

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

start

Methods inherited from class java.lang.Object

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

Constructor Detail

GridHadoopEmbeddedTaskExecutor

public GridHadoopEmbeddedTaskExecutor()

Method Detail

onKernalStart

public void onKernalStart()
                   throws org.gridgain.grid.GridException

Callback invoked when all grid components are started.

Overrides:

onKernalStart in class GridHadoopComponent

Throws:

org.gridgain.grid.GridException

onKernalStop

public void onKernalStop(boolean cancel)

Callback invoked before all grid components are stopped.

Overrides:

onKernalStop in class GridHadoopComponent

stop

public void stop(boolean cancel)

Stops manager.

Overrides:

stop in class GridHadoopComponent

run

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

Runs tasks.

Specified by:

run in class GridHadoopTaskExecutorAdapter

Parameters:

job - Job.

tasks - Tasks.

cancelTasks

public 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.

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.

Specified by:

cancelTasks in class GridHadoopTaskExecutorAdapter

Parameters:

jobId - Job ID to cancel.

onJobStateChanged

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

On job state change callback;

Specified by:

onJobStateChanged in class GridHadoopTaskExecutorAdapter

Parameters:

meta - Job metadata.

Throws:

org.gridgain.grid.GridException