Uses of Class
org.apache.lucene.index.MergePolicy

Packages that use MergePolicy

Package	Description
org.apache.lucene.index	Code to maintain and access indices.

Uses of MergePolicy in org.apache.lucene.index

Subclasses of MergePolicy in org.apache.lucene.index

Modifier and Type	Class	Description
class	LogByteSizeMergePolicy	This is a LogMergePolicy that measures size of a segment as the total byte size of the segment's files.
class	LogDocMergePolicy	This is a LogMergePolicy that measures size of a segment as the number of documents (not taking deletions into account).
class	LogMergePolicy	This class implements a MergePolicy that tries to merge segments into levels of exponentially increasing size, where each level has fewer segments than the value of the merge factor.
class	NoMergePolicy	A MergePolicy which never returns merges to execute (hence it's name).
class	TieredMergePolicy	Merges segments of approximately equal size, subject to an allowed number of segments per tier.
class	UpgradeIndexMergePolicy	This MergePolicy is used for upgrading all existing segments of an index when calling IndexWriter.forceMerge(int).

Fields in org.apache.lucene.index declared as MergePolicy

Modifier and Type	Field	Description
protected MergePolicy	UpgradeIndexMergePolicy.base	Wrapped MergePolicy.
static MergePolicy	NoMergePolicy.COMPOUND_FILES	A singleton NoMergePolicy which indicates the index uses compound files.
protected MergePolicy	LiveIndexWriterConfig.mergePolicy	MergePolicy for selecting merges.
static MergePolicy	NoMergePolicy.NO_COMPOUND_FILES	A singleton NoMergePolicy which indicates the index does not use compound files.

Methods in org.apache.lucene.index that return MergePolicy

Modifier and Type	Method	Description
MergePolicy	MergePolicy.clone()
MergePolicy	IndexWriterConfig.getMergePolicy()
MergePolicy	LiveIndexWriterConfig.getMergePolicy()	Returns the current MergePolicy in use by this writer.

Methods in org.apache.lucene.index with parameters of type MergePolicy

Modifier and Type	Method	Description
IndexWriterConfig	IndexWriterConfig.setMergePolicy(MergePolicy mergePolicy)	Expert: MergePolicy is invoked whenever there are changes to the segments in the index.

Constructors in org.apache.lucene.index with parameters of type MergePolicy

Constructor	Description
UpgradeIndexMergePolicy(MergePolicy base)	Wrap the given MergePolicy and intercept forceMerge requests to only upgrade segments written with previous Lucene versions.