net.openhft.chronicle.map

Class Replica.EntryCallback

java.lang.Object

net.openhft.chronicle.map.Replica.EntryCallback

Enclosing interface:

Replica

public abstract static class Replica.EntryCallback
extends Object

Implemented typically by a replicator, This interface provides the event, which will get called whenever a put() or remove() has occurred to the map

Constructor Summary

Constructors

Constructor and Description
Replica.EntryCallback()

Method Summary

Methods

Modifier and Type	Method and Description
void	onAfterEntry() Called just after onEntry(Bytes, int, long).
void	onBeforeEntry() Called just before onEntry(Bytes, int, long).
abstract boolean	onEntry(Bytes entry, int chronicleId, long bootStrapTimeStamp) Called whenever a put() or remove() has occurred to a replicating map.
abstract boolean	shouldBeIgnored(Bytes entry, int chronicleId) its possible that the entry should now be ignored, for example although rare its identifier may have recently been changed by another thread, so its no longer applicable to send

Methods inherited from class java.lang.Object

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

Constructor Detail

Replica.EntryCallback

public Replica.EntryCallback()

Method Detail

onEntry

public abstract boolean onEntry(@NotNull
              Bytes entry,
              int chronicleId,
              long bootStrapTimeStamp)

Called whenever a put() or remove() has occurred to a replicating map.

Parameters:

entry - the entry you will receive, this does not have to be locked, as locking is already provided from the caller.

chronicleId - only assigned when clustering

bootStrapTimeStamp - sent to the client on every update this is the timestamp that the remote client should bootstrap from when there has been a disconnection, this time maybe later than the message time as event are not send in chronological order from the bit set.

Returns:

false if this entry should be ignored because the identifier of the source node is not from one of our changes, WARNING even though we check the identifier in the ModificationIterator the entry may have been updated.

onAfterEntry

public void onAfterEntry()

Called just after onEntry(Bytes, int, long). No-op by default.

onBeforeEntry

public void onBeforeEntry()

Called just before onEntry(Bytes, int, long). No-op by default.

shouldBeIgnored

public abstract boolean shouldBeIgnored(Bytes entry,
                      int chronicleId)

its possible that the entry should now be ignored, for example although rare its identifier may have recently been changed by another thread, so its no longer applicable to send

Parameters:

entry - the entry you will receive, this does not have to be locked, as locking is already provided from the caller.

chronicleId - only assigned when clustering

Returns:

true if this entry should be ignored