[
https://issues.apache.org/jira/browse/JENA-1171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15260823#comment-15260823
]
Andy Seaborne commented on JENA-1171:
-------------------------------------
This should go in to the code base just after a release to give it the most
time to settle down.
> Rework algebra/expression walk and transformation framework
> -----------------------------------------------------------
>
> Key: JENA-1171
> URL: https://issues.apache.org/jira/browse/JENA-1171
> Project: Apache Jena
> Issue Type: Bug
> Affects Versions: Jena 3.1.0
> Reporter: Andy Seaborne
> Assignee: Andy Seaborne
>
> The current framework walks algebra operations but relies on each visitor or
> transformer to handle expressions inside ops (e.g. filter, leftjoin, extend)
> but also ops inside expressions (exists). These can be arbitrary nested.
> This reliance on carefully written code leads to incomplete and error prone
> transformations.
> https://github.com/afs/jena/tree/walker is a rewriting of op and expressions
> walking and transforming to walk/transform recursively as part of the
> machinery.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
