I would like to typecheck AQL queries and have some problems doing that:
The items in a CLUSTER are of type ITEM. If I access myCluster/items[at0001]/value, is there any possibility to type-check the validity of this path without having the concrete archetype definition at hand? Just using the reference model isn't enough for this task, because ITEMs do not have a value-field. How can (from an object oriented point of view) the values of the ITEMs be accessed without knowing if it is an ELEMENT ? Why is there a distiguishment between ELEMENT, ITEM and CLUSTER at all ? If the fields "items" and "value" were already attached to the class ITEM it would be easier.

Dipl.-Inf. Georg Fette      Raum: B001
Universität Würzburg        Tel.: +49-(0)931-31-85516
Am Hubland                  Fax.: +49-(0)931-31-86732
97074 Würzburg              mail: georg.fe...@uni-wuerzburg.de

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