Package com.atlassian.confluence.internal.index.lucene

Class DefaultIndexLockService

java.lang.Object

com.atlassian.confluence.internal.index.lucene.DefaultIndexLockService

All Implemented Interfaces:

IndexLockService

@LuceneIndependent
public class DefaultIndexLockService
extends Object
implements IndexLockService

The implementation of IndexLockService which initialises all lock in memory. This is what we need for indexes which are stored locally and are accessed only from this JVM. Please note: EnumSet guarantees iteration order, therefore lock ordering will automatically prevent deadlocks

Since:

7.9.0

Constructor Summary

Constructors

Constructor	Description
DefaultIndexLockService()

Method Summary

Modifier and Type	Method	Description
void	lock(SearchIndex index)	Blocks to acquire a lock on index.
void	lock(EnumSet<SearchIndex> indices)	Blocks to acquire a lock on indices.
boolean	tryLock(SearchIndex index, long duration, TimeUnit timeUnit)	Tries to acquire a lock on the index in given time limit.
boolean	tryLock(EnumSet<SearchIndex> indices, long duration, TimeUnit timeUnit)	Tries to acquire a lock on indices in given time limit.
void	unlock(SearchIndex index)	Releases the lock held on index
void	unlock(EnumSet<SearchIndex> indices)	Releases the lock held on indices.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultIndexLockService

public DefaultIndexLockService()

Method Detail

tryLock

public boolean tryLock(SearchIndex index,
                       long duration,
                       TimeUnit timeUnit)

Description copied from interface: IndexLockService

Tries to acquire a lock on the index in given time limit.

Specified by:

tryLock in interface IndexLockService

Returns:

true if the lock was successfully acquired

tryLock

public boolean tryLock(EnumSet<SearchIndex> indices,
                       long duration,
                       TimeUnit timeUnit)

Description copied from interface: IndexLockService

Tries to acquire a lock on indices in given time limit. The invocation of this method should work in all-or-nothing way, no partial subset of the locks should be acquired.

Specified by:

tryLock in interface IndexLockService

Returns:

true if all locks were successfully acquired.

lock

public void lock(SearchIndex index)

Description copied from interface: IndexLockService

Blocks to acquire a lock on index.

Specified by:

lock in interface IndexLockService

lock

public void lock(EnumSet<SearchIndex> indices)

Description copied from interface: IndexLockService

Blocks to acquire a lock on indices. The invocation of this method should work in all-or-nothing way, no partial subset of the locks should be acquired.

Specified by:

lock in interface IndexLockService

unlock

public void unlock(SearchIndex index)

Description copied from interface: IndexLockService

Releases the lock held on index

Specified by:

unlock in interface IndexLockService

unlock

public void unlock(EnumSet<SearchIndex> indices)

Description copied from interface: IndexLockService

Releases the lock held on indices. The invocation of this method should work in all-or-nothing way, no partial subset of the locks should be released.

Specified by:

unlock in interface IndexLockService