org.apache.ignite.internal.processors.cache.query.continuous

Interface CacheContinuousQueryListener<K,V>

public interface CacheContinuousQueryListener<K,V>

Continuous query listener.

Method Summary

Modifier and Type	Method and Description
void	acknowledgeBackupOnTimeout(GridKernalContext ctx)
void	cleanupBackupQueue(Map<Integer,Long> updateCntrs) Cleans backup queue.
void	flushBackupQueue(GridKernalContext ctx, AffinityTopologyVersion topVer) Flushes backup queue.
boolean	isPrimaryOnly()
boolean	keepBinary()
boolean	notifyExisting()
boolean	oldValueRequired()
void	onEntryUpdated(org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryEvent<K,V> evt, boolean primary, boolean recordIgniteEvt, @Nullable GridDhtAtomicAbstractUpdateFuture fut) Entry update callback.
void	onPartitionEvicted(int part)
void	onRegister() Listener registration callback.
void	onUnregister() Listener unregistered callback.
@Nullable CounterSkipContext	skipUpdateCounter(GridCacheContext cctx, @Nullable CounterSkipContext skipCtx, int part, long cntr, AffinityTopologyVersion topVer, boolean primary) For cache updates in shared cache group need notify others caches CQ listeners that generated counter should be skipped.
void	skipUpdateEvent(org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryEvent<K,V> evt, AffinityTopologyVersion topVer, boolean primary)

Method Detail

onEntryUpdated

void onEntryUpdated(org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryEvent<K,V> evt,
                    boolean primary,
                    boolean recordIgniteEvt,
                    @Nullable
                    @Nullable GridDhtAtomicAbstractUpdateFuture fut)

Entry update callback.

Parameters:

evt - Event

primary - Primary flag.

recordIgniteEvt - Whether to record event.

fut - Dht atomic future.

onRegister

void onRegister()

Listener registration callback. NOTE: This method should be called under the CacheGroupContext.listenerLock write lock held.

onUnregister

void onUnregister()

Listener unregistered callback.

cleanupBackupQueue

void cleanupBackupQueue(Map<Integer,Long> updateCntrs)

Cleans backup queue.

Parameters:

updateCntrs - Update indexes map.

flushBackupQueue

void flushBackupQueue(GridKernalContext ctx,
                      AffinityTopologyVersion topVer)

Flushes backup queue.

Parameters:

ctx - Context.

topVer - Topology version.

acknowledgeBackupOnTimeout

void acknowledgeBackupOnTimeout(GridKernalContext ctx)

Parameters:

ctx - Context.

skipUpdateEvent

void skipUpdateEvent(org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryEvent<K,V> evt,
                     AffinityTopologyVersion topVer,
                     boolean primary)

Parameters:

evt - Event

topVer - Topology version.

primary - Primary

skipUpdateCounter

@Nullable
@Nullable CounterSkipContext skipUpdateCounter(GridCacheContext cctx,
                                                         @Nullable
                                                         @Nullable CounterSkipContext skipCtx,
                                                         int part,
                                                         long cntr,
                                                         AffinityTopologyVersion topVer,
                                                         boolean primary)

For cache updates in shared cache group need notify others caches CQ listeners that generated counter should be skipped.

Parameters:

cctx - Cache context.

skipCtx - Context.

part - Partition.

cntr - Counter to skip.

topVer - Topology version.

Returns:

Context.

onPartitionEvicted

void onPartitionEvicted(int part)

Parameters:

part - Partition.

oldValueRequired

boolean oldValueRequired()

Returns:

Whether old value is required.

keepBinary

boolean keepBinary()

Returns:

Keep binary flag.

notifyExisting

boolean notifyExisting()

Returns:

Whether to notify on existing entries.

isPrimaryOnly

boolean isPrimaryOnly()

Returns:

True if this listener should be called on events on primary partitions only.