[jboss-jira] [JBoss JIRA] Commented: (BPEL-313) Prepare jBPM-BPEL for performance-enhancing laziness changes in upcoming Jaxen-1.1.3

Sat Oct 24 07:36:05 EDT 2009

    [ https://jira.jboss.org/jira/browse/BPEL-313?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12491338#action_12491338 ] 

Alejandro Guizar commented on BPEL-313:
---------------------------------------

Aleksander, the jBPM code has been migrated to Subversion, including the BPEL runtime. jBPM BPEL 1.1.1 was released from SVN. Would you rather incorporate your work into our SVN repo if you had write access to it?

> Prepare jBPM-BPEL for performance-enhancing laziness changes in upcoming Jaxen-1.1.3
> ------------------------------------------------------------------------------------
>
>                 Key: BPEL-313
>                 URL: https://jira.jboss.org/jira/browse/BPEL-313
>             Project: jBPM BPEL
>          Issue Type: Patch
>      Security Level: Public(Everyone can see) 
>          Components: Engine
>            Reporter: Aleksander Adamowski
>            Assignee: Alejandro Guizar
>            Priority: Minor
>
> There's a change coming up in Jaxen that has the potential to significantly increase its performance by making returned lists lazy:
> http://jira.codehaus.org/browse/JAXEN-31
> However, to take advantage of this performance-enhancing laziness, one has to employ special techniques when using Jaxen's APIs - most notably, avoid calling size() on Jaxen-returned node lists or sorting them - where possible, using isEmpty(),  iterators, and get().
> I'm doing proof of concept work on jBPM-BPEL sources right now. The progress can be tracked on GitHub in the jbpm-bpel project on the perf-jaxen-laziness branch:
> http://github.com/aadamowski/jbpm-bpel/commits/perf-jaxen-laziness
> Over there there's currently an untested commit there that demonstrates the aforementioned techniques:
> http://github.com/aadamowski/jbpm-bpel/commit/6feb2d1a0434e73e47f57e2151bbfcb59d7283c5

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira