Search found 3 matches

by aboubakrelhacen
Thu Sep 04, 2014 12:54 pm
Forum: PQL
Topic: User Defined Operators
Replies: 6
Views: 885

Re: User Defined Operators

In the "process" method in the Rapid Prototyping example the payload field refers to the object array holding all values in one tuple. Thus, it depends on the schema of the stream. The return value of the method is the payload of the resulting tuple. However, this is just for rapid stuff and may ha...
by aboubakrelhacen
Thu Sep 04, 2014 12:19 pm
Forum: PQL
Topic: User Defined Operators
Replies: 6
Views: 885

Re: User Defined Operators

A good example for UDOs is the Rapid Prototyping Feature [1]. However, if you only search a simple example on how to implement an UDO, take a look at "server/core/core/src/de/uniol/inf/is/odysseus/core/server/udf/ElementSampling.java" in the SVN. [1] http://odysseus.offis.uni-oldenburg.de:8090/disp...
by aboubakrelhacen
Thu Sep 04, 2014 11:21 am
Forum: PQL
Topic: User Defined Operators
Replies: 6
Views: 885

User Defined Operators

Hi,
can you please give a concrete example where UDOs are used in odysseus. The documentation does not contain a complete example, where UDOs used in a query.
Regards,