Interfaces and classes corresponding to matching functions, subscription validations and subscription entries that are pertinent to the management of subscriptions within the WS-Eventing specification.
Implementation of interfaces defined in the storage package which includes interfaces and abstract classes that encapsulate funcationality related to the storage of events, retrieval of sequence information, sequence numbers etc.
Checks to see if there is already a widget that has been stored
corresponding to messageNumber and sequenceIdentifier encapsulated within
the [wsrm:SequenceDocument].