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.
    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