Package org.apache.ignite.internal.management

Class SystemViewTask

java.lang.Object

org.apache.ignite.internal.visor.VisorMultiNodeTask<SystemViewCommandArg,SystemViewTaskResult,SystemViewTaskResult>

org.apache.ignite.internal.management.SystemViewTask

All Implemented Interfaces:

Serializable, ComputeTask<VisorTaskArgument<SystemViewCommandArg>,VisorTaskResult<SystemViewTaskResult>>

@GridInternal
public class SystemViewTask
extends VisorMultiNodeTask<SystemViewCommandArg,SystemViewTaskResult,SystemViewTaskResult>

Reperesents visor task for obtaining system view content.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SystemViewTask.SimpleType	Represents lightweight type descriptors.

Field Summary

Fields inherited from class org.apache.ignite.internal.visor.VisorMultiNodeTask

debug, ignite, start, taskArg

Constructor Summary

Constructors

Constructor	Description
SystemViewTask()

Method Summary

Modifier and Type	Method	Description
protected VisorJob<SystemViewCommandArg,SystemViewTaskResult>	job(SystemViewCommandArg arg)
protected @Nullable SystemViewTaskResult	reduce0(List<ComputeJobResult> results)	Actual reduce logic.

Methods inherited from class org.apache.ignite.internal.visor.VisorMultiNodeTask

jobNodes, map, map0, reduce, result

Methods inherited from class java.lang.Object

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

Constructor Detail

SystemViewTask

public SystemViewTask()

Method Detail

job

protected VisorJob<SystemViewCommandArg,SystemViewTaskResult> job(SystemViewCommandArg arg)

Specified by:

job in class VisorMultiNodeTask<SystemViewCommandArg,SystemViewTaskResult,SystemViewTaskResult>

Parameters:

arg - Task arg.

Returns:

New job.

reduce0

@Nullable
protected @Nullable SystemViewTaskResult reduce0(List<ComputeJobResult> results)
                                          throws IgniteException

Actual reduce logic.

Specified by:

reduce0 in class VisorMultiNodeTask<SystemViewCommandArg,SystemViewTaskResult,SystemViewTaskResult>

Parameters:

results - Job results.

Returns:

Task result.

Throws:

IgniteException - If reduction or results caused an error.