Package org.infinispan.lucene.readlocks

Class NoopSegmentReadLocker

java.lang.Object

org.infinispan.lucene.readlocks.NoopSegmentReadLocker

All Implemented Interfaces:

SegmentReadLocker

public class NoopSegmentReadLocker
extends Object
implements SegmentReadLocker

NoopSegmentReadLocker ignores requests to apply a readlock, but also ignores requests to delete files. It might be a good choice for read-only indexes, or cases in which leaving unused segments in the index is not considered a problem.

Since:

4.1

Author:

Sanne Grinovero

Constructor Summary

Constructors

Constructor	Description
NoopSegmentReadLocker()

Method Summary

Modifier and Type	Method	Description
boolean	acquireReadLock(String filename)	doesn't do anything and returns true
void	deleteOrReleaseReadLock(String filename)	doesn't do anything

Methods inherited from class java.lang.Object

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

Constructor Detail

NoopSegmentReadLocker

public NoopSegmentReadLocker()

Method Detail

acquireReadLock

public boolean acquireReadLock(String filename)

doesn't do anything and returns true

Specified by:

acquireReadLock in interface SegmentReadLocker

Parameters:

filename - of the file to acquire the lock at

Returns:

true if the lock was acquired, false if the implementation detects the file does not exist, or that it's being deleted by some other thread.

See Also:

Directory.openInput(java.lang.String, org.apache.lucene.store.IOContext)

deleteOrReleaseReadLock

public void deleteOrReleaseReadLock(String filename)

doesn't do anything

Specified by:

deleteOrReleaseReadLock in interface SegmentReadLocker

Parameters:

filename - of the file to release or delete

See Also:

Directory.deleteFile(String)