Bitte verwenden Sie diesen Link, um diese Publikation zu zitieren, oder auf sie als Internetquelle zu verweisen: http://hdl.handle.net/10419/223243
Erscheinungsjahr: 
2020
Schriftenreihe/Nr.: 
ERCIS Working Paper No. 32
Verlag: 
Westfälische Wilhelms-Universität Münster, European Research Center for Information Systems (ERCIS), Münster
Zusammenfassung: 
Constraint-logic object-oriented programming is useful in the integrated development of business software that occasionally solves constraint-logic problems. So far, work in constraint-logic object-oriented programming was limited to considering constraints that only involve logic variables of primitive types; in particular, boolean, integer, and floating-point numbers. However, the availability of object-oriented features calls for the option to use logic variables in lieu of objects as well.Therefore, support for reference-type logic variables (or free objects) is required. With the present work, we add support for reference-type logic variables to a Java-based constraint-logic object-oriented language. Allowing free objects in statements and expressions results in novel interactions with objects at runtime, for instance, non-deterministic execution of invocations on free objects(taking arbitrary class hierarchies and overriding into account). In order to achieve this, we also propose a dynamic type constraint that restricts the types of free objects at runtime.
Schlagwörter: 
constraint-logic object-oriented programming
reference-type logic variables
programming language implementation
runtime systems
Dokumentart: 
Working Paper

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