[
https://issues.apache.org/jira/browse/PIG-1354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12857932#action_12857932
]
Ashutosh Chauhan commented on PIG-1354:
---------------------------------------
Dmitriy,
Neat work!
This patch facilitates to call few existing methods in jdk libs(which are thus
compiled and already available at runtime).
Thinking aloud, what will it take to go one step further from here. That is, to
take uncompiled java code blocks and then compile them at runtime and make them
available as udfs. If we can get that, then we can allow users to write java
code of there udfs inline in pig script and then pig can compile it at runtime
and do other necessary plumbing to make it work. And then, no more need to
write java code separately, compile it, jar it, register it etc. All user code
will be in one file. This will make writing udfs a lot easier.
http://docs.codehaus.org/display/JANINO/Home and http://commons.apache.org/jci/
might be of help.
Thoughts ?
> UDFs for dynamic invocation of simple Java methods
> --------------------------------------------------
>
> Key: PIG-1354
> URL: https://issues.apache.org/jira/browse/PIG-1354
> Project: Pig
> Issue Type: New Feature
> Affects Versions: 0.8.0
> Reporter: Dmitriy V. Ryaboy
> Assignee: Dmitriy V. Ryaboy
> Fix For: 0.8.0
>
> Attachments: PIG-1354.patch, PIG-1354.patch, PIG-1354.patch
>
>
> The need to create wrapper UDFs for simple Java functions creates unnecessary
> work for Pig users, slows down the development process, and produces a lot of
> trivial classes. We can use Java's reflection to allow invoking a number of
> methods on the fly, dynamically, by creating a generic UDF to accomplish this.
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
https://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
