An AQUA-Based Intermediate Language for Evaluating an Active Deductive Object-Oriented Language

Siddabathuni, Babu; Dietrich, Suzanne W.; Urban, Susan D.

doi:10.1007/3-540-49201-1_12

Cited by 2 publications

(1 citation statement)

References 7 publications

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“…The formal definition of the language appears in [21], [22] and is based on the definitions of O2 [25] and IQL [1]. Metadata components and language evaluation issues for CDOL can be found in [7], [31], [32].…”

Section: Overview Of Cdolmentioning

confidence: 99%

Delta abstractions: a technique for managing database states in runtime debugging of active database rules

Urban

Abdellatif

Dietrich

et al. 2003

IEEE Trans. Knowl. Data Eng.

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Delta abstractions are introduced as a mechanism for managing database states during the execution of active database rules. Delta abstractions build upon the use of object deltas, capturing changes to individual objects through a system-supported, collapsible type structure. The object delta structure is implemented using object-oriented concepts such as encapsulation and inheritance so that all database objects inherit the ability to transparently create and manage delta values. Delta abstractions provide an additional layer to the database programmer for organizing object deltas according to different language components that induce database changes, such as methods and active rules. As with object deltas, delta abstractions are transparently created and maintained by the active database system. We define different types of delta abstractions as views of object deltas and illustrate how the services of delta abstractions can be used to inspect the state of active rule execution. An active rule analysis and debugging tool has been implemented to demonstrate the use of object deltas and delta abstractions for dynamic analysis of active rules at runtime.Index Terms-Active database systems, object deltas, rule analysis and debugging.

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