org.compass.core.lucene.engine.optimizer
Class AdaptiveOptimizer

java.lang.Object
  org.compass.core.lucene.engine.optimizer.AbstractOptimizer
      org.compass.core.lucene.engine.optimizer.AdaptiveOptimizer

All Implemented Interfaces:

CompassConfigurable, SearchEngineOptimizer, LuceneSearchEngineOptimizer

public class AdaptiveOptimizer
extends AbstractOptimizer
implements CompassConfigurable

The Adaptive optimizer uses the configured LuceneEnvironment.Optimizer.Adaptive.MERGE_FACTOR (which defaults to 10). Basically, ends up calling Lucene IndexWriter.optimize(int) with the provided merge factor which optimizes the index up to the given merge factor.

Forced optimization ends up optimizing the sub index up to a single segmend, overriding the merge factor (just for that call, with a merge factor of 1).

Author:

kimchy

Field Summary

Fields inherited from class org.compass.core.lucene.engine.optimizer.AbstractOptimizer

log

Constructor Summary

AdaptiveOptimizer()

Method Summary

boolean	canBeScheduled() Can the optimizer be scheduled or not.
void	configure(CompassSettings settings) Configure using the given settings.
protected void	doForceOptimize(String subIndex)
protected void	doOptimize(String subIndex)
protected void	doOptimize(String subIndex, int mergeFactor)
protected boolean	isOptimizeOnlyIfIndexChanged()

Methods inherited from class org.compass.core.lucene.engine.optimizer.AbstractOptimizer

doStart, doStop, forceOptimize, forceOptimize, getSearchEngineFactory, isRunning, optimize, optimize, setSearchEngineFactory, start, stop

Methods inherited from class java.lang.Object

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

Constructor Detail

AdaptiveOptimizer

public AdaptiveOptimizer()

Method Detail

configure

public void configure(CompassSettings settings)
               throws CompassException

Description copied from interface: CompassConfigurable

Configure using the given settings.

Specified by:

configure in interface CompassConfigurable

Parameters:

settings - The settings for the configured object

Throws:

CompassException

canBeScheduled

public boolean canBeScheduled()

Description copied from interface: LuceneSearchEngineOptimizer

Can the optimizer be scheduled or not.

Specified by:

canBeScheduled in interface LuceneSearchEngineOptimizer

isOptimizeOnlyIfIndexChanged

protected boolean isOptimizeOnlyIfIndexChanged()

doForceOptimize

protected void doForceOptimize(String subIndex)
                        throws SearchEngineException

Specified by:

doForceOptimize in class AbstractOptimizer

Throws:

SearchEngineException

doOptimize

protected void doOptimize(String subIndex)
                   throws SearchEngineException

Specified by:

doOptimize in class AbstractOptimizer

Throws:

SearchEngineException

doOptimize

protected void doOptimize(String subIndex,
                          int mergeFactor)
                   throws SearchEngineException

Throws:

SearchEngineException