org.apache.lucene.benchmark.utils

Class NoDeletionPolicy

java.lang.Object

org.apache.lucene.benchmark.utils.NoDeletionPolicy

All Implemented Interfaces:

IndexDeletionPolicy

public class NoDeletionPolicy
extends java.lang.Object
implements IndexDeletionPolicy

Constructor Summary

Constructors

Constructor and Description
NoDeletionPolicy()

Method Summary

Methods

Modifier and Type	Method and Description
void	onCommit(java.util.List commits) This is called each time the writer completed a commit.
void	onInit(java.util.List commits) This is called once when a writer is first instantiated to give the policy a chance to remove old commit points.

Methods inherited from class java.lang.Object

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

Constructor Detail

NoDeletionPolicy

public NoDeletionPolicy()

Method Detail

onCommit

public void onCommit(java.util.List commits)
              throws java.io.IOException

Description copied from interface: IndexDeletionPolicy

This is called each time the writer completed a commit. This gives the policy a chance to remove old commit points with each commit.

The policy may now choose to delete old commit points by calling method delete() of IndexCommit.

If writer has autoCommit = true then this method will in general be called many times during one instance of IndexWriter. If autoCommit = false then this method is only called once when IndexWriter.close() is called, or not at all if the IndexWriter.abort() is called.

Note: the last CommitPoint is the most recent one, i.e. the "front index state". Be careful not to delete it, unless you know for sure what you are doing, and unless you can afford to lose the index content while doing that.

Specified by:

onCommit in interface IndexDeletionPolicy

Parameters:

commits - List of IndexCommit, sorted by age (the 0th one is the oldest commit).

Throws:

java.io.IOException

onInit

public void onInit(java.util.List commits)
            throws java.io.IOException

Description copied from interface: IndexDeletionPolicy

This is called once when a writer is first instantiated to give the policy a chance to remove old commit points.

The writer locates all index commits present in the index directory and calls this method. The policy may choose to delete some of the commit points, doing so by calling method delete() of IndexCommit.

Note: the last CommitPoint is the most recent one, i.e. the "front index state". Be careful not to delete it, unless you know for sure what you are doing, and unless you can afford to lose the index content while doing that.

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).

Throws:

java.io.IOException