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Posted to dev@jena.apache.org by "Andy Seaborne (JIRA)" <ji...@apache.org> on 2015/06/28 22:52:04 UTC
[jira] [Resolved] (JENA-976) Provide machinery for syntax
manipulation
[ https://issues.apache.org/jira/browse/JENA-976?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andy Seaborne resolved JENA-976.
--------------------------------
Resolution: Done
> Provide machinery for syntax manipulation
> -----------------------------------------
>
> Key: JENA-976
> URL: https://issues.apache.org/jira/browse/JENA-976
> Project: Apache Jena
> Issue Type: Improvement
> Components: ARQ
> Reporter: Andy Seaborne
> Assignee: Andy Seaborne
> Fix For: Jena 3.0.0
>
>
> Jena ARQ does a lot of algebra manipulation (for example, the high level optimizer is a collection of algebra transformation rules).
> Sometimes, manipulation of query syntax is needed. Examples include rewriting a query with a specific variable replaced by a constant term, or simplying syntax after applying {{OpAsQuery}} (for safety, it adds some additonal "{ }" around query parts and these can only be removed in-context; that means a pass over a built query to detect and improve the syntax tree.
> This task is to add a framework for query syntax manipulation.
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