Abstract: The present invention relates to systems and methods that facilitate serial access to related messages stored within a queue. The systems and methods comprise a conversation manager that generates conversation groups and associated conversation group identifiers for related messages, wherein related messages are associated with one or more dialog conversations between services. The conversation manager utilizes a respective conversation group identifier to lock a conversation group and provide exclusive serial access to the related messages therein and any related incoming messages to a reader such that only one reader at a time can access and process the related messages; other readers can still concurrently dequeue and process messages associated with other conversation groups. The present invention employs order queuing techniques that ensure messages are stored in-order, which facilitates in-order serial processing of messages in a conversation group.

Abstract: An object-based event communications system supplies an event distribution object having an outgoing-from-publisher event interface and associated with unique identifiers defined for a publisher that is programmed to fire events by calling a method on the event distribution object's outgoing-from-publisher event interface. The event communications system stores subscriptions of subscriber objects to methods of the outgoing-from-publisher event interface. On receiving a call from a publisher to its outgoing-from-publisher interface methods, the event distribution object multi-casts calls to counterpart methods of subscriber objects that have stored subscriptions to the respective outgoing-from-publisher interface methods.

Abstract: An object-based event communications system supplies an event distribution object having an outgoing-from-publisher event interface and associated with unique identifiers defined for a publisher that is programmed to fire events by calling a method on the event distribution object's outgoing-from-publisher event interface. The event communications system stores subscriptions of subscriber objects to methods of the outgoing-from-publisher event interface. On receiving a call from a publisher to its outgoing-from-publisher interface methods, the event distribution object multi-casts calls to counterpart methods of subscriber objects that have stored subscriptions to the respective outgoing-from-publisher interface methods.