org.apache.ignite.internal

Class GridMessageListenHandler

java.lang.Object

org.apache.ignite.internal.GridMessageListenHandler

All Implemented Interfaces:

Externalizable, Serializable, Cloneable, GridContinuousHandler

public class GridMessageListenHandler
extends Object
implements GridContinuousHandler

Continuous handler for message subscription.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.ignite.internal.processors.continuous.GridContinuousHandler

GridContinuousHandler.RegisterStatus

Constructor Summary

Constructors

Constructor and Description
GridMessageListenHandler() Required by Externalizable.
GridMessageListenHandler(GridMessageListenHandler orig)
GridMessageListenHandler(Object topic, IgniteBiPredicate<UUID,Object> pred)

Method Summary

Modifier and Type	Method and Description
String	cacheName()
GridContinuousHandler	clone() Clones this handler.
GridContinuousBatch	createBatch() Creates new batch.
boolean	isEvents()
boolean	isMessaging()
boolean	isQuery()
boolean	keepBinary()
void	notifyCallback(UUID nodeId, UUID routineId, Collection<?> objs, GridKernalContext ctx) Notifies local callback.
void	onBatchAcknowledged(UUID routineId, GridContinuousBatch batch, GridKernalContext ctx) Called when ack for a batch is received from client.
void	onClientDisconnected() Client node disconnected callback.
void	onNodeLeft() Node which started routine leave topology.
Object	orderedTopic()
void	p2pMarshal(GridKernalContext ctx) Deploys and marshals inner objects (called only if peer deployment is enabled).
void	p2pUnmarshal(UUID nodeId, GridKernalContext ctx) Unmarshals inner objects (called only if peer deployment is enabled).
void	readExternal(ObjectInput in)
GridContinuousHandler.RegisterStatus	register(UUID nodeId, UUID routineId, GridKernalContext ctx) Registers listener.
String	toString()
void	unregister(UUID routineId, GridKernalContext ctx) Unregisters listener.
void	updateCounters(AffinityTopologyVersion topVer, Map<UUID,Map<Integer,T2<Long,Long>>> cntrsPerNode, Map<Integer,T2<Long,Long>> cntrs)
void	writeExternal(ObjectOutput out)

Methods inherited from class java.lang.Object

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

Constructor Detail

GridMessageListenHandler

public GridMessageListenHandler()

Required by Externalizable.

GridMessageListenHandler

public GridMessageListenHandler(@Nullable
                                Object topic,
                                IgniteBiPredicate<UUID,Object> pred)

Parameters:

topic - Topic.

pred - Predicate.

GridMessageListenHandler

public GridMessageListenHandler(GridMessageListenHandler orig)

Parameters:

orig - Handler to be copied.

Method Detail

isEvents

public boolean isEvents()

Specified by:

isEvents in interface GridContinuousHandler

Returns:

True if for events.

isMessaging

public boolean isMessaging()

Specified by:

isMessaging in interface GridContinuousHandler

Returns:

True if for messaging.

isQuery

public boolean isQuery()

Specified by:

isQuery in interface GridContinuousHandler

Returns:

True if for continuous queries.

keepBinary

public boolean keepBinary()

Specified by:

keepBinary in interface GridContinuousHandler

Returns:

True if Ignite Binary objects should be passed to the listener and filter.

cacheName

public String cacheName()

Specified by:

cacheName in interface GridContinuousHandler

Returns:

Cache name if this is a continuous query handler.

updateCounters

public void updateCounters(AffinityTopologyVersion topVer,
                           Map<UUID,Map<Integer,T2<Long,Long>>> cntrsPerNode,
                           Map<Integer,T2<Long,Long>> cntrs)

Specified by:

updateCounters in interface GridContinuousHandler

Parameters:

topVer - Topology version.

cntrsPerNode - Init state partition counters for node.

cntrs - Init state for partition counters.

register

public GridContinuousHandler.RegisterStatus register(UUID nodeId,
                                                     UUID routineId,
                                                     GridKernalContext ctx)
                                              throws IgniteCheckedException

Registers listener.

Specified by:

register in interface GridContinuousHandler

Parameters:

nodeId - ID of the node that started routine.

routineId - Routine ID.

ctx - Kernal context.

Returns:

Whether listener was actually registered.

Throws:

IgniteCheckedException - In case of error.

unregister

public void unregister(UUID routineId,
                       GridKernalContext ctx)

Unregisters listener.

Specified by:

unregister in interface GridContinuousHandler

Parameters:

routineId - Routine ID.

ctx - Kernal context.

notifyCallback

public void notifyCallback(UUID nodeId,
                           UUID routineId,
                           Collection<?> objs,
                           GridKernalContext ctx)

Notifies local callback.

Specified by:

notifyCallback in interface GridContinuousHandler

Parameters:

nodeId - ID of the node where notification came from.

routineId - Routine ID.

objs - Notification objects.

ctx - Kernal context.

p2pMarshal

public void p2pMarshal(GridKernalContext ctx)
                throws IgniteCheckedException

Deploys and marshals inner objects (called only if peer deployment is enabled).

Specified by:

p2pMarshal in interface GridContinuousHandler

Parameters:

ctx - Kernal context.

Throws:

IgniteCheckedException - In case of error.

p2pUnmarshal

public void p2pUnmarshal(UUID nodeId,
                         GridKernalContext ctx)
                  throws IgniteCheckedException

Unmarshals inner objects (called only if peer deployment is enabled).

Specified by:

p2pUnmarshal in interface GridContinuousHandler

Parameters:

nodeId - Sender node ID.

ctx - Kernal context.

Throws:

IgniteCheckedException - In case of error.

createBatch

public GridContinuousBatch createBatch()

Creates new batch.

Specified by:

createBatch in interface GridContinuousHandler

Returns:

New batch.

onClientDisconnected

public void onClientDisconnected()

Client node disconnected callback.

Specified by:

onClientDisconnected in interface GridContinuousHandler

onBatchAcknowledged

public void onBatchAcknowledged(UUID routineId,
                                GridContinuousBatch batch,
                                GridKernalContext ctx)

Called when ack for a batch is received from client.

Specified by:

onBatchAcknowledged in interface GridContinuousHandler

Parameters:

routineId - Routine ID.

batch - Acknowledged batch.

ctx - Kernal context.

orderedTopic

@Nullable
public Object orderedTopic()

Specified by:

orderedTopic in interface GridContinuousHandler

Returns:

Topic for ordered notifications. If null, notifications will be sent in non-ordered messages.

clone

public GridContinuousHandler clone()

Clones this handler.

Specified by:

clone in interface GridContinuousHandler

Overrides:

clone in class Object

Returns:

Clone of this handler.

onNodeLeft

public void onNodeLeft()

Node which started routine leave topology.

Specified by:

onNodeLeft in interface GridContinuousHandler

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException

toString

public String toString()

Overrides:

toString in class Object