Package org.hibernate.search.backend.impl.blackhole

Class BlackHoleBackendQueueProcessorFactory

java.lang.Object

org.hibernate.search.backend.impl.blackhole.BlackHoleBackendQueueProcessorFactory

All Implemented Interfaces:

BackendQueueProcessorFactory, UpdatableBackendQueueProcessorFactory

public class BlackHoleBackendQueueProcessorFactory
extends Object
implements UpdatableBackendQueueProcessorFactory

This backend does not do anything: the Documents are not sent to any index but are discarded. Useful to identify the bottleneck in indexing performance problems, fully disabling the backend system but still building the Documents needed to update an index (loading data from DB).

Constructor Summary

Constructors

Constructor	Description
BlackHoleBackendQueueProcessorFactory()

Method Summary

Modifier and Type	Method	Description
void	close()	Used to shutdown and eventually release resources.
Runnable	getProcessor(List<LuceneWork> queue)	Return a runnable implementation responsible for processing the queue to a given backend.
void	initialize(Properties props, WorkerBuildContext context)	Used at startup, called once as first method.
void	updateDirectoryProviders(Set<DirectoryProvider<?>> providers, WorkerBuildContext context)	Update the list of DirectoryProviders in case the SearchFactory is updated.

Methods inherited from class java.lang.Object

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

Constructor Details

BlackHoleBackendQueueProcessorFactory

public BlackHoleBackendQueueProcessorFactory()

Method Details

getProcessor

public Runnable getProcessor(List<LuceneWork> queue)

Description copied from interface: BackendQueueProcessorFactory

Return a runnable implementation responsible for processing the queue to a given backend.

Specified by:

getProcessor in interface BackendQueueProcessorFactory

Parameters:

queue - The work queue to process.

Returns:

Runnable which processes queue when started.

initialize

public void initialize(Properties props,
 WorkerBuildContext context)

Description copied from interface: BackendQueueProcessorFactory

Used at startup, called once as first method.

Specified by:

initialize in interface BackendQueueProcessorFactory

Parameters:

props - all configuration properties

context - context giving access to required meta data

close

public void close()

Description copied from interface: BackendQueueProcessorFactory

Used to shutdown and eventually release resources. No other method should be used after this one.

Specified by:

close in interface BackendQueueProcessorFactory

updateDirectoryProviders

public void updateDirectoryProviders(Set<DirectoryProvider<?>> providers,
 WorkerBuildContext context)

Description copied from interface: UpdatableBackendQueueProcessorFactory

Update the list of DirectoryProviders in case the SearchFactory is updated. The processor factory should react and update its state accordingly.

Specified by:

updateDirectoryProviders in interface UpdatableBackendQueueProcessorFactory