[jira] [Closed] (JENA-512) SSE Tags are used inconsistently

["Andy Seaborne (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/JENA-512?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andy Seaborne closed JENA-512.
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> SSE Tags are used inconsistently
> --------------------------------
>
>                 Key: JENA-512
>                 URL: https://issues.apache.org/jira/browse/JENA-512
>             Project: Apache Jena
>          Issue Type: Bug
>          Components: ARQ
>    Affects Versions: Jena 2.10.1
>            Reporter: Rob Vesse
>            Assignee: Rob Vesse
>            Priority: Minor
>              Labels: algebra, sse
>             Fix For: Jena 2.11.0
>
>
> In some of our more recent code we are trying to map functions into a messaging data structure by inspecting the function symbol.  However we have found that there are some inconsistencies in the symbols.
> Namely that the capitalization and punctuation are not consistent, likely this cannot change as it would mean breaking many existing algebra examples/tests and systems like ours that use algebra strings internally.
> The more concerning inconsistencies are that some functions report symbols without using the tag constants and so some queries written report symbols that don't match their tag constants.
> BuilderExpr appears to get around this by doing case insensitive key lookup which seems very hacky
> There is also at least one function (isNumeric) which has no Tag constant and no SSE builder defined for it so queries containing this cannot be decoded from algebra.
> I plan to do two things:
> - Make expression classes return their Tags constant where they don't already and particularly in the cases where the two values aren't exact matches
> - Fix the isNumeric case (and any others I discover) where there is no registered builder for the symbol



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