com.bigdata.rdf.task

Interface IApiTask<T>

All Superinterfaces:

Callable<T>

All Known Implementing Classes:

AbstractApiTask, AbstractDelegateRestApiTask, AbstractRestApiTask, CreateKBTask, DestroyKBTask

public interface IApiTask<T>
extends Callable<T>

A task that can be run either with direct index access or using the concurrency manager (compatible with group commit).

Author:

Bryan Thompson

See Also:

Concurrent unisolated operations against multiple KBs

Method Summary

Methods

Modifier and Type	Method and Description
IIndexManager	getIndexManager() Return the IIndexManager.
String	getNamespace() The namespace of the target KB instance.
long	getTimestamp() The timestamp of the view of that KB instance.
boolean	isGRSRequired() Tasks that create or destroy locatable resources need to write on the global row store (GRS).
void	setIndexManager(IIndexManager indexManager) Invoked to inform the task of the index manager before it is executed.

Methods inherited from interface java.util.concurrent.Callable

call

Method Detail

getNamespace

String getNamespace()

The namespace of the target KB instance.

getTimestamp

long getTimestamp()

The timestamp of the view of that KB instance.

isGRSRequired

boolean isGRSRequired()

Tasks that create or destroy locatable resources need to write on the global row store (GRS). Such tasks must specify this property. Note that the GRS lock will have the side-effect of serializing all such tasks that write on the GRS index.

setIndexManager

void setIndexManager(IIndexManager indexManager)

Invoked to inform the task of the index manager before it is executed.

Parameters:

indexManager - The index manager.

getIndexManager

IIndexManager getIndexManager()

Return the IIndexManager.

Returns:

The index manager.

Throws:

IllegalStateException - if the IIndexManager reference is not set.