Abstract: An Object Procedure Messaging, or OPM, facility in the form of an internal and external Remote Procedure Call, or RPC, facility uses client and server stubs to transfer messages on both local and remote platforms to reduce multiple calls when a local server object is not available when first called by a local client object. A local memory queue is used to store the message calls for local objects so that the client and server stubs shield the client and server objects from the details of communications therebetween for both local and remote message calls.

Abstract: Service requests from client objects in a computer network are processed in accordance with the desirability of use of the transport network available for communication with the server objects so that local platform servers are used whenever possible to avoid data marshalling and unmarshalling. A local memory queue is used to hold the service request for interrogation by the local server. Local memory storage may be used to hold data or other portions of the service request so that only minimal data need be processed by the memory queue.

Abstract: A data server data base system applies a request for data to a data engine which launches a probe via network transport that causes the data to be collected on a remote platform and returned via network transport. The returned data is then applied to the requesting user application in the form of one or more rows of columnar data emulating the return of data from a conventional data base system including data tables. This operation may further be enhanced by the inclusion of Event processing in which the occurrence of an event based on a predicate test is determined by the data server without requiring attention of the user application. In particular, the user application stores a rule statement in the data server and then references that statement by name in a data inquiry. An event level data probe is invoked to collect the data referenced in the rule statement and the collected data is tested in accordance with the rule statement to determine if the event has occurred.