Abstract: An object oriented framework defines a generic order processing interface that creates an order, and that processes the order and generates requests to one or more fulfillment systems to fill the order. The generic order suitably includes one or more line items. One or more extensible interface classes are provided in the framework, which allows a user to define the order entry protocol for the relevant order fulfillment systems. Once properly extended, the framework is used to generate an executable framework application, which allows a client to enter a generic order, and which then generates the appropriate requests to fill the order with the appropriate order fulfillment system or systems. The framework of the preferred embodiments thus allows the specific knowledge of the back-end order fulfillment systems to be isolated to the extended portions of the framework, while the front-end order entry system has no knowledge of the order fulfillment systems that may be called upon to fill an order.

Abstract: In an object oriented computer system, a domain-neutral object is modified with domain-specific run-time extensions to customize the object to a particular domain. A special factory uses the extension identifier to create the domain-neutral object with appropriate extensions in a collection that corresponds to the domain extension. If the special factory is not available, or if a specialized collection associated with the particular extension type has not been previously created, the domain-neutral object with appropriate extensions is created in a default collection. In this manner, an object that is domain-neutral can be customized to a particular domain and created in an appropriate collection for objects of that type.

Abstract: A method and computer program product are provided for implementing pushdown queries in a distributed object management system. A pushdown query to a system datastore is performed for a query type returning a single object. Responsive to the system datastore finding the match, checking whether the match refers to an object changed in the current transaction is performed. Responsive to the match not referring to a changed object, the object is returned. Responsive to the match referring to the changed object and the changed object matching the pushdown query, the changed object is returned. Responsive to the system datastore not finding the match, a list of changed objects in a current transaction is obtained. Each of the changed objects are in a current transactional state. An object query is performed on the changed objects in the list of changed objects. A multiple object pushdown query to the system datastore is performed for a query type returning multiple objects.