org.apache.jackrabbit.core.state
Class DefaultISMLocking

java.lang.Object
  org.apache.jackrabbit.core.state.DefaultISMLocking

All Implemented Interfaces:

ISMLocking

public class DefaultISMLocking
extends Object
implements ISMLocking

DefaultISMLocking implements the default locking strategy using coarse grained locking on an ItemStateManager wide read-write lock. E.g. while a write lock is held, no read lock can be acquired.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.jackrabbit.core.state.ISMLocking

ISMLocking.ReadLock, ISMLocking.WriteLock

Constructor Summary

DefaultISMLocking()

Method Summary

ISMLocking.ReadLock	acquireReadLock(ItemId id) Acquire a read lock for the given item id.
ISMLocking.WriteLock	acquireWriteLock(ChangeLog changeLog) Acquires a write lock for the given changeLog.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultISMLocking

public DefaultISMLocking()

Method Detail

acquireReadLock

public ISMLocking.ReadLock acquireReadLock(ItemId id)
                                    throws InterruptedException

Acquire a read lock for the given item id.

Specified by:

acquireReadLock in interface ISMLocking

Parameters:

id - an item id.

Throws:

InterruptedException

acquireWriteLock

public ISMLocking.WriteLock acquireWriteLock(ChangeLog changeLog)
                                      throws InterruptedException

Acquires a write lock for the given changeLog.

Specified by:

acquireWriteLock in interface ISMLocking

Parameters:

changeLog - the change log

Returns:

the write lock for the given changeLog.

Throws:

InterruptedException - if the thread is interrupted while creating the write lock.