A New Design of an Object Navigation Query Notation

S. Mitterdorfer, E. Teiniker, C. Kreiner, R. Weiss, and Z. Kovács (Austria)


UML, SQL, CORBA, Database


Current component framework technologies lack expres sions for component and object queries. To overcome this deficiency, we present a new design of an Object Navi gation Query Notation, a language to query and navigate in component based object models represented as UML models. It supports association navigation, generaliza tion/specialization navigation, subclass filtering, attribute filtering, instance filtering, instance sorting, and inner joins. Markers provide navigation into UML loop structures.

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