asterixdb-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Mike Carey <dtab...@gmail.com>
Subject Re: AsterixDB - UDF
Date Wed, 28 Oct 2015 18:50:30 GMT
You can test UDFs (and should!!) by using them in AQL queries against 
the kinds of data that will be coming in on the feed.  Once they are 
tested and working 100%, you can use them on a feed and be confident 
that they'll be doing the right thing. Does that help?

Cheers,
Mike


On 10/28/15 3:53 AM, Pääkkönen Pekka wrote:
>
> Hi,
>
> Thanks. I am now able to create a simple UDF.
>
> If I connect the UDF to a feed, is it possible to know from outside of 
> AsterixDB, when execution of UDF calls have been completed?
>
> Or should I use AQL via REST API (to call the UDF) for such purpose?
>
> -Pekka
>
> Hi Pekka,
>
> For making UDFs, you should not necessarily have to import AsterixDB
>
> into Eclipse/Intellij, as long as you are comfortable with maven and
>
> your text editor of choice. It may be easiest however.
>
> As for the content of the asterix-external-data zip, yes, other UDFs
>
> should follow the general example of that archive. That XML file (
>
> https://github.com/apache/incubator-asterixdb/blob/master/asterix-external-data/src/test/resources/library_descriptor.xml)
>
> corresponds to these set of functions:
>
> (https://github.com/apache/incubator-asterixdb/tree/master/asterix-external-data/src/test/java/org/apache/asterix/external/library)
>
> Hope that helps! Sorry there isn't a more end-to-end documentation
>
> regarding implementing a UDF, but hopefully the source examples are
>
> illustrative enough.
>
> Thanks,
>
> -Ian
>
> On Mon, Oct 26, 2015 at 6:02 AM, Pääkkönen Pekka 
> <Pekka.Paakkonen@vtt.fi> wrote:
>
> > Hi,
>
> >
>
> >
>
> >
>
> > In order to program UDFs, do I need to install AsterixDB development
>
> > environment to Eclipse?
>
> >
>
> >
>
> >
>
> > I am also wondering about the content of the UDF ZIP bundle.
>
> >
>
> > Should the content be similar to
>
> > asterix-external-data-0.8.7-SNAPSHOT-binary-assembly.zip, which contains
>
> >
>
> > a JAR and library_descriptor.xml?
>
> >
>
> >
>
> >
>
> > Regards,
>
> >
>
> > -Pekka
>
> >
>
> >
>
> >
>
> >
>
> >
>
> >
>


Mime
View raw message