org.apache.ignite.internal.processors.query.h2.twostep

Class TopologyLock

java.lang.Object

org.apache.ignite.internal.processors.query.h2.twostep.TopologyLock

public abstract class TopologyLock
extends Object

Topology locker abstract class. Note: TopologyLocker objects are single-threaded objects.

Field Summary

Fields

Modifier and Type	Field and Description
protected GridKernalContext	ctx Kernal context.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	TopologyLock(GridKernalContext ctx) Constructor.

Method Summary

Modifier and Type	Method and Description
static TopologyLock	forCaches(GridKernalContext ctx, List<Integer> cacheIds) Creates cache group topology locker for given caches ids.
abstract void	lock() Either locks all topologies or fails unlocking previously locked.
abstract void	unlock() Unlocked topologies that were previously locked.

Methods inherited from class java.lang.Object

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

Field Detail

ctx

protected final GridKernalContext ctx

Kernal context.

Constructor Detail

TopologyLock

protected TopologyLock(GridKernalContext ctx)

Constructor.

Parameters:

ctx - Kernal context.

Method Detail

forCaches

public static TopologyLock forCaches(GridKernalContext ctx,
                                     List<Integer> cacheIds)

Creates cache group topology locker for given caches ids.

Parameters:

ctx - Kernal context.

cacheIds - Cache ids list.

Returns:

Topology locker.

lock

public abstract void lock()

Either locks all topologies or fails unlocking previously locked. Topologies are locked/unlocked in order.

unlock

public abstract void unlock()

Unlocked topologies that were previously locked.