org.hibernate.search.backend.impl

Class StreamingOperationExecutorSelector

java.lang.Object

org.hibernate.search.backend.impl.StreamingOperationExecutorSelector

All Implemented Interfaces:

IndexWorkVisitor<Void,StreamingOperationExecutor>

public class StreamingOperationExecutorSelector
extends Object
implements IndexWorkVisitor<Void,StreamingOperationExecutor>

This visitor applies the selection logic from the plugged IndexShardingStrategies to stream operations, as used by optimize() and batching operations. Using a visitor/selector pattern for different implementations of addAsPayLoadsToQueue depending on the type of LuceneWork.

Implementation note: This IndexWorkVisitor implementation intentionally does not perform the actual logic within the individual visit methods themselves but rather returns a delegate class for that purpose. This is to avoid the need for the allocation of a parameter object with the required input data, instead a method with the required parameters is exposed on said delegate.

Author:

Sanne Grinovero, Martin Braun

Field Summary

Fields

Modifier and Type	Field and Description
static StreamingOperationExecutorSelector	INSTANCE

Method Summary

Methods

Modifier and Type	Method and Description
StreamingOperationExecutor	visitAddWork(AddLuceneWork addLuceneWork, Void p)
StreamingOperationExecutor	visitDeleteByQueryWork(DeleteByQueryLuceneWork deleteByQueryLuceneWork, Void p)
StreamingOperationExecutor	visitDeleteWork(DeleteLuceneWork deleteLuceneWork, Void p)
StreamingOperationExecutor	visitFlushWork(FlushLuceneWork flushLuceneWork, Void p)
StreamingOperationExecutor	visitOptimizeWork(OptimizeLuceneWork optimizeLuceneWork, Void p)
StreamingOperationExecutor	visitPurgeAllWork(PurgeAllLuceneWork purgeAllLuceneWork, Void p)
StreamingOperationExecutor	visitUpdateWork(UpdateLuceneWork updateLuceneWork, Void p)

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final StreamingOperationExecutorSelector INSTANCE

Method Detail

visitAddWork

public StreamingOperationExecutor visitAddWork(AddLuceneWork addLuceneWork,
                                      Void p)

Specified by:

visitAddWork in interface IndexWorkVisitor<Void,StreamingOperationExecutor>

visitUpdateWork

public StreamingOperationExecutor visitUpdateWork(UpdateLuceneWork updateLuceneWork,
                                         Void p)

Specified by:

visitUpdateWork in interface IndexWorkVisitor<Void,StreamingOperationExecutor>

visitDeleteWork

public StreamingOperationExecutor visitDeleteWork(DeleteLuceneWork deleteLuceneWork,
                                         Void p)

Specified by:

visitDeleteWork in interface IndexWorkVisitor<Void,StreamingOperationExecutor>

visitOptimizeWork

public StreamingOperationExecutor visitOptimizeWork(OptimizeLuceneWork optimizeLuceneWork,
                                           Void p)

Specified by:

visitOptimizeWork in interface IndexWorkVisitor<Void,StreamingOperationExecutor>

visitPurgeAllWork

public StreamingOperationExecutor visitPurgeAllWork(PurgeAllLuceneWork purgeAllLuceneWork,
                                           Void p)

Specified by:

visitPurgeAllWork in interface IndexWorkVisitor<Void,StreamingOperationExecutor>

visitFlushWork

public StreamingOperationExecutor visitFlushWork(FlushLuceneWork flushLuceneWork,
                                        Void p)

Specified by:

visitFlushWork in interface IndexWorkVisitor<Void,StreamingOperationExecutor>

visitDeleteByQueryWork

public StreamingOperationExecutor visitDeleteByQueryWork(DeleteByQueryLuceneWork deleteByQueryLuceneWork,
                                                Void p)

Specified by:

visitDeleteByQueryWork in interface IndexWorkVisitor<Void,StreamingOperationExecutor>