Package org.apache.catalina.tribes

Interface ChannelListener

All Known Subinterfaces:

ClusterDeployer

All Known Implementing Classes:

AbstractReplicatedMap, CloudMembershipProvider, ClusterListener, ClusterSessionListener, DNSMembershipProvider, FarmWarDeployer, KubernetesMembershipProvider, LazyReplicatedMap, ReplicatedMap, RpcChannel, SimpleTcpCluster, StaticMembershipProvider

public interface ChannelListener

An interface to listens to incoming messages from a channel.

When a message is received, the Channel will invoke the channel listener in a conditional sequence. if ( listener.accept(msg,sender) ) listener.messageReceived(msg,sender);
A ChannelListener implementation MUST NOT return true on accept(Serializable, Member) if it doesn't intend to process the message. The channel can this way track whether a message was processed by an above application or if it was just received and forgot about, a feature required to support message-response(RPC) calls

Method Summary

Modifier and Type	Method	Description
boolean	accept(Serializable msg, Member sender)	Invoked by the channel to determine if the listener will process this message or not.
boolean	equals(Object listener)
int	hashCode()
void	messageReceived(Serializable msg, Member sender)	Receive a message from the channel

Method Details

messageReceived

void messageReceived(Serializable msg,
 Member sender)

Receive a message from the channel

Parameters:

msg - Serializable

sender - - the source of the message

accept

boolean accept(Serializable msg,
 Member sender)

Invoked by the channel to determine if the listener will process this message or not.

Parameters:

msg - Serializable

sender - Member

Returns:

boolean

equals

boolean equals(Object listener)

Overrides:

equals in class Object

Parameters:

listener - Object

Returns:

boolean

See Also:

• Object.equals(Object)

hashCode

int hashCode()

Overrides:

hashCode in class Object

Returns:

int

See Also:

• Object.hashCode()