com.bigdata.service

Interface IDataServiceCallable

All Superinterfaces:

IFederationCallable, Serializable

All Known Implementing Classes:

AbstractStepTask, DataServiceCallable, JoinTaskFactoryTask, ListIndicesTask, MoveTask.ReceiveIndexPartitionTask, MutationTask, ProgramTask, QueryTask

public interface IDataServiceCallable
extends IFederationCallable

Interface for procedures that require access to the IDataService and or the federation.

Version:

$Id$

Author:

Bryan Thompson

See Also:

IFederationCallable

Method Summary

Methods

Modifier and Type	Method and Description
DataService	getDataService() Return the DataService.
void	setDataService(DataService dataService) Invoked before the task is executed to provide a reference to the IDataService on which it is executing.

Methods inherited from interface com.bigdata.service.IFederationCallable

getFederation, setFederation

Method Detail

setDataService

void setDataService(DataService dataService)

Invoked before the task is executed to provide a reference to the IDataService on which it is executing. This method is also responsible for setting the IBigdataFederation reference using IFederationCallable.setFederation(IBigdataFederation).

Parameters:

dataService - The data service.

Throws:

IllegalArgumentException - if the argument is null

IllegalStateException - if setDataService(DataService) has already been invoked and was set with a different value.

getDataService

DataService getDataService()

Return the DataService.

Returns:

The data service and never null.

Throws:

IllegalStateException - if setDataService(DataService) has not been invoked.