org.apache.lucene.index
Class KeepOnlyLastCommitDeletionPolicy

java.lang.Object
  extended by org.apache.lucene.index.KeepOnlyLastCommitDeletionPolicy
All Implemented Interfaces:
IndexDeletionPolicy

public final class KeepOnlyLastCommitDeletionPolicy
extends Object
implements IndexDeletionPolicy

This IndexDeletionPolicy implementation that keeps only the most recent commit and immediately removes all prior commits after a new commit is done. This is the default deletion policy.


Constructor Summary
KeepOnlyLastCommitDeletionPolicy()
           
 
Method Summary
 void onCommit(List<? extends IndexCommit> commits)
          Deletes all commits except the most recent one.
 void onInit(List<? extends IndexCommit> commits)
          Deletes all commits except the most recent one.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

KeepOnlyLastCommitDeletionPolicy

public KeepOnlyLastCommitDeletionPolicy()
Method Detail

onInit

public void onInit(List<? extends IndexCommit> commits)
Deletes all commits except the most recent one.

Specified by:
onInit in interface IndexDeletionPolicy
Parameters:
commits - List of current point-in-time commits, sorted by age (the 0th one is the oldest commit).

onCommit

public void onCommit(List<? extends IndexCommit> commits)
Deletes all commits except the most recent one.

Specified by:
onCommit in interface IndexDeletionPolicy
Parameters:
commits - List of IndexCommit, sorted by age (the 0th one is the oldest commit).