# Package org.apache.catalina.tribes.group

Interface Summary
ExtendedRpcCallback: Extension to the `RpcCallback` interface.
GroupChannelMBean
RpcCallback: The RpcCallback interface is an interface for the Tribes channel to request a response object to a request that came in.

Class Summary
AbsoluteOrder: Title: Membership - Absolute Order
AbsoluteOrder.AbsoluteComparator
ChannelCoordinator: The channel coordinator object coordinates the membership service, the sender and the receiver.
ChannelInterceptorBase: Abstract class for the interceptor base class.
GroupChannel: The default implementation of a Channel. The GroupChannel manages the replication channel.
GroupChannel.HeartbeatThread: If `Channel.getHeartbeat()==true` then a thread of this class is created.
GroupChannel.InterceptorIterator: An iterator to loop through the interceptors in a channel.
InterceptorPayload
Response: A response object holds a message from a responding partner.
RpcChannel: A channel to handle RPC messaging
RpcChannel.RpcCollector: Class that holds all response.
RpcChannel.RpcCollectorKey
RpcMessage
RpcMessage.NoRpcChannelReply