org.hibernate.search.store.optimization.impl
Class IncrementalOptimizerStrategy

java.lang.Object
  org.hibernate.search.store.optimization.impl.ExplicitOnlyOptimizerStrategy
      org.hibernate.search.store.optimization.impl.IncrementalOptimizerStrategy

All Implemented Interfaces:

OptimizerStrategy

public class IncrementalOptimizerStrategy
extends ExplicitOnlyOptimizerStrategy
implements OptimizerStrategy

Optimization strategy triggered after a certain amount of operations

Author:

Emmanuel Bernard

Field Summary

Fields inherited from class org.hibernate.search.store.optimization.impl.ExplicitOnlyOptimizerStrategy

indexName

Constructor Summary

IncrementalOptimizerStrategy()

Method Summary

void	addOperationWithinTransactionCount(long operations) To count the amount of operations which where applied to the index.
long	getOptimizationsPerformed()
void	initialize(IndexManager indexManager, Properties indexProperties) Initializes the OptimizerStrategy.
void	optimize(Workspace workspace) Allows the implementation to start an optimization process.
boolean	performOptimization(org.apache.lucene.index.IndexWriter writer) Invokes optimize on the IndexWriter; This is invoked when an optimization has been explicitly requested by the user API using SearchFactory.optimize() or SearchFactory.optimize(Class), or at the start or end of a MassIndexer's work.

Methods inherited from class java.lang.Object

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

Constructor Detail

IncrementalOptimizerStrategy

public IncrementalOptimizerStrategy()

Method Detail

performOptimization

public boolean performOptimization(org.apache.lucene.index.IndexWriter writer)

Description copied from interface: OptimizerStrategy

Invokes optimize on the IndexWriter; This is invoked when an optimization has been explicitly requested by the user API using SearchFactory.optimize() or SearchFactory.optimize(Class), or at the start or end of a MassIndexer's work.

Specified by:

performOptimization in interface OptimizerStrategy

Overrides:

performOptimization in class ExplicitOnlyOptimizerStrategy

Parameters:

writer - the index writer

Returns:

true if optimisation occurred, false otherwise

addOperationWithinTransactionCount

public void addOperationWithinTransactionCount(long operations)

Description copied from interface: OptimizerStrategy

To count the amount of operations which where applied to the index. Invoked once per transaction.

Specified by:

addOperationWithinTransactionCount in interface OptimizerStrategy

Overrides:

addOperationWithinTransactionCount in class ExplicitOnlyOptimizerStrategy

Parameters:

operations - operation count

optimize

public void optimize(Workspace workspace)

Description copied from interface: OptimizerStrategy

Allows the implementation to start an optimization process. The decision of optimizing or not is up to the implementor. This is invoked after all changes of a transaction are applied, but never during stream operation such as those used by the MassIndexer.

Specified by:

optimize in interface OptimizerStrategy

Overrides:

optimize in class ExplicitOnlyOptimizerStrategy

Parameters:

workspace - the current work space

initialize

public void initialize(IndexManager indexManager,
                       Properties indexProperties)

Description copied from interface: OptimizerStrategy

Initializes the OptimizerStrategy. Is called once at the initialisation of the strategy.

Specified by:

initialize in interface OptimizerStrategy

Overrides:

initialize in class ExplicitOnlyOptimizerStrategy

Parameters:

indexManager - the index manager for which this strategy applies

indexProperties - the configuration properties

getOptimizationsPerformed

public long getOptimizationsPerformed()