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

Packages that use IndexDeletionPolicy

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

Uses of IndexDeletionPolicy in org.apache.lucene.index

Subclasses of IndexDeletionPolicy in org.apache.lucene.index

Modifier and Type	Class	Description
class	KeepOnlyLastCommitDeletionPolicy	This IndexDeletionPolicy implementation that keeps only the most recent commit and immediately removes all prior commits after a new commit is done.
class	NoDeletionPolicy	An IndexDeletionPolicy which keeps all index commits around, never deleting them.
class	PersistentSnapshotDeletionPolicy	A SnapshotDeletionPolicy which adds a persistence layer so that snapshots can be maintained across the life of an application.
class	SnapshotDeletionPolicy	An IndexDeletionPolicy that wraps any other IndexDeletionPolicy and adds the ability to hold and later release snapshots of an index.

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

Modifier and Type	Field	Description
protected IndexDeletionPolicy	LiveIndexWriterConfig.delPolicy	IndexDeletionPolicy controlling when commit points are deleted.
static IndexDeletionPolicy	NoDeletionPolicy.INSTANCE	The single instance of this class.
private IndexDeletionPolicy	IndexFileDeleter.policy
private IndexDeletionPolicy	SnapshotDeletionPolicy.primary	Wrapped IndexDeletionPolicy

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

Modifier and Type	Method	Description
IndexDeletionPolicy	IndexWriterConfig.getIndexDeletionPolicy()
IndexDeletionPolicy	LiveIndexWriterConfig.getIndexDeletionPolicy()	Returns the IndexDeletionPolicy specified in IndexWriterConfig.setIndexDeletionPolicy(IndexDeletionPolicy) or the default KeepOnlyLastCommitDeletionPolicy/

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

Modifier and Type	Method	Description
IndexWriterConfig	IndexWriterConfig.setIndexDeletionPolicy(IndexDeletionPolicy delPolicy)	Expert: allows an optional IndexDeletionPolicy implementation to be specified.

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

Constructor	Description
IndexFileDeleter(java.lang.String[] files, Directory directoryOrig, Directory directory, IndexDeletionPolicy policy, SegmentInfos segmentInfos, InfoStream infoStream, IndexWriter writer, boolean initialIndexExists, boolean isReaderInit)	Initialize the deleter: find all previous commits in the Directory, incref the files they reference, call the policy to let it delete commits.
PersistentSnapshotDeletionPolicy(IndexDeletionPolicy primary, Directory dir)	PersistentSnapshotDeletionPolicy wraps another IndexDeletionPolicy to enable flexible snapshotting, passing IndexWriterConfig.OpenMode.CREATE_OR_APPEND by default.
PersistentSnapshotDeletionPolicy(IndexDeletionPolicy primary, Directory dir, IndexWriterConfig.OpenMode mode)	PersistentSnapshotDeletionPolicy wraps another IndexDeletionPolicy to enable flexible snapshotting.
SnapshotDeletionPolicy(IndexDeletionPolicy primary)	Sole constructor, taking the incoming IndexDeletionPolicy to wrap.