com.pervasive.datarush.cal

Interface JobContext

public interface JobContext

Context available to job.

Method Summary

Modifier and Type	Method and Description
StorageManager	ensureJobStorageManager() Returns a storage manager for storing temporary files.
DistributedExecutorService	getDistributedExecutor() Returns an executor service for performing work within the job.
FileClient	getFileClient() Returns the file client to be used within this context
void	releaseStorage(FileClient fileClient, StoragePlanner storagePlanner) Releases all storage for this storage manager that was allocated by the given planner.

Method Detail

getDistributedExecutor

DistributedExecutorService getDistributedExecutor()

Returns an executor service for performing work within the job. Starts the first time it is used. Shuts down when the job is shutdown.

Returns:

the executor service.

ensureJobStorageManager

StorageManager ensureJobStorageManager()

Returns a storage manager for storing temporary files. Allocated upon job start, auto-released on job shutdown Calling this method forces allocation of nodes in the cluster so this should not be invoked within JobCallable.init(JobContext).

Returns:

the storage manager

releaseStorage

void releaseStorage(FileClient fileClient,
                    StoragePlanner storagePlanner)

Releases all storage for this storage manager that was allocated by the given planner. This call is ignored if a storage manager was never created

Parameters:

fileClient - the file client

storagePlanner - the storage planner

getFileClient

FileClient getFileClient()

Returns the file client to be used within this context

Returns:

the file client