org.gridgain.grid.util

Class GridSnapshotLock<X>

java.lang.Object

org.gridgain.grid.util.GridSnapshotLock<X>

public abstract class GridSnapshotLock<X>
extends Object

Synchronization primitive allowing concurrent updates and taking consistent snapshots.

Constructor Summary

Constructors

Constructor and Description
GridSnapshotLock()

Method Summary

Methods

Modifier and Type	Method and Description
void	beginUpdate() Must be called before update begin.
protected abstract X	doSnapshot()
void	endUpdate() Signal that update operation finished.
X	snapshot()
boolean	tryBeginUpdate()

Methods inherited from class java.lang.Object

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

Constructor Detail

GridSnapshotLock

public GridSnapshotLock()

Method Detail

beginUpdate

public void beginUpdate()

Must be called before update begin.

tryBeginUpdate

public boolean tryBeginUpdate()

Returns:

true If it is possible to proceed the update operation.

endUpdate

public void endUpdate()

Signal that update operation finished.

snapshot

public X snapshot()

Returns:

Consistent snapshot of data.

doSnapshot

protected abstract X doSnapshot()

Returns:

Snapshot.