org.apache.lucene.index

Class MergeScheduler

java.lang.Object

org.apache.lucene.index.MergeScheduler

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, java.lang.Cloneable

Direct Known Subclasses:

ConcurrentMergeScheduler, NoMergeScheduler, SerialMergeScheduler

public abstract class MergeScheduler
extends java.lang.Object
implements java.io.Closeable, java.lang.Cloneable

Expert: IndexWriter uses an instance implementing this interface to execute the merges selected by a MergePolicy. The default MergeScheduler is ConcurrentMergeScheduler.

Implementers of sub-classes should make sure that clone() returns an independent instance able to work with any IndexWriter instance.

Method Summary

Modifier and Type	Method and Description
MergeScheduler	clone()
abstract void	close() Close this MergeScheduler.
abstract void	merge(IndexWriter writer) Run the merges provided by IndexWriter.getNextMerge().

Methods inherited from class java.lang.Object

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

Method Detail

merge

public abstract void merge(IndexWriter writer)
                    throws java.io.IOException

Run the merges provided by IndexWriter.getNextMerge().

Throws:

java.io.IOException

close

public abstract void close()
                    throws java.io.IOException

Close this MergeScheduler.

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Throws:

java.io.IOException

clone

public MergeScheduler clone()

Overrides:

clone in class java.lang.Object