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 and 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 and Description
protected IndexDeletionPolicy	LiveIndexWriterConfig.delPolicy IndexDeletionPolicy controlling when commit points are deleted.
static IndexDeletionPolicy	NoDeletionPolicy.INSTANCE The single instance of this class.

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

Modifier and Type	Method and Description
IndexDeletionPolicy	NoDeletionPolicy.clone()
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 and 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 and Description
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.