Package org.hibernate.search.backend.jgroups.impl

Interface Summary

Interface	Description
MessageSenderService	Abstract away message submission.
NodeSelectorService	Contains the NodeSelectorStrategy selected for each index, or returns the default one.
NodeSelectorStrategy	A NodeSelectorStrategy represents the strategy by which a node out of the JGroups cluster is selected to apply changes to the Lucene index.

Class Summary

Class	Description
AutoNodeSelector	This NodeSelectorStrategy picks a single master across all nodes participating in the JGroups cluster deterministically: this way all nodes in the group will have an agreement on which node is going to be the master.
DefaultNodeSelectorService	Maintains a registry of node selectors per index, so that we can handle each index independently while sharing the same JGroups channel.
DispatchMessageSender	We use the MessageDispatcher instead of the JChannel to be able to use blocking operations (optionally) without having to rely on the RSVP protocol being configured on the stack.
JGroupsBackendQueueProcessor	This index backend is able to switch dynamically between a standard Lucene index writing backend and one which sends work remotely over a JGroups channel.
JGroupsBackendQueueTask	Responsible for sending Lucene works from slave nodes to master node
JGroupsMasterMessageListener	Listen for messages from slave nodes and apply them into LuceneBackendQueueProcessor
MasterNodeSelector	This NodeSelectorStrategy is a static configuration for the local node to always process index operations locally, and accept index operations from remote nodes configured as slaves.
MessageListenerToRequestHandlerAdapter	Delegate request to listener.
MessageSerializationHelper	While we use the configured LuceneWorkSerializer to serialize the Work queue, the JGroups backend needs to prefix the stream with the index name.
SlaveNodeSelector	This NodeSelectorStrategy is a static configuration for the local node to avoid processing any indexing operations locally.