Package org.infinispan.statetransfer

Class CommitManager

java.lang.Object

org.infinispan.statetransfer.CommitManager

public class CommitManager
extends Object

Keeps track of the keys updated by normal operation and state transfer. Since the command processing happens concurrently with the state transfer, it needs to keep track of the keys updated by normal command in order to reject the updates from the state transfer. It assumes that the keys from normal operations are most recent thant the ones received by state transfer.

Since:

7.0

Author:

Pedro Ruivo

Constructor Summary

Constructors

Constructor	Description
CommitManager()

Method Summary

Modifier and Type	Method	Description
final CompletionStage<Void>	commit(CacheEntry entry, Flag operation, int segment, boolean l1Only, InvocationContext ctx)	It tries to commit the cache entry.
final boolean	isEmpty()
final boolean	isTracking(Flag trackFlag)
final void	startTrack(Flag track)	It starts tracking keys committed.
final void	stopTrack(Flag track)	It stops tracking keys committed.
final void	stopTrackFor(Flag flag, int segmentId)	Stop tracking the entries for the given segment if state transfer tracking is enabled.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

CommitManager

public CommitManager()

Method Details

startTrack

public final void startTrack(Flag track)

It starts tracking keys committed. All the keys committed will be flagged with this flag. State transfer received after the key is tracked will be discarded.

Parameters:

track - Flag to start tracking keys for local site state transfer or for remote site state transfer.

stopTrack

public final void stopTrack(Flag track)

It stops tracking keys committed.

Parameters:

track - Flag to stop tracking keys for local site state transfer or for remote site state transfer.

stopTrackFor

public final void stopTrackFor(Flag flag,
 int segmentId)

Stop tracking the entries for the given segment if state transfer tracking is enabled.

Parameters:

flag - : flag to verify if tracking is enabled.

segmentId - : segment to stop tracking.

commit

public final CompletionStage<Void> commit(CacheEntry entry,
 Flag operation,
 int segment,
 boolean l1Only,
 InvocationContext ctx)

It tries to commit the cache entry. The entry is not committed if it is originated from state transfer and other operation already has updated it.

Parameters:

entry - the entry to commit

operation - if null, it identifies this commit as originated from a normal operation. Otherwise, it

ctx -

isTracking

public final boolean isTracking(Flag trackFlag)

Returns:

true if the flag is being tracked, false otherwise.

isEmpty

public final boolean isEmpty()

Returns:

true if no keys are tracked, false otherwise.

toString

public String toString()

Overrides:

toString in class Object