[jira] [Commented] (OPENJPA-1741) Unecessary class load attempts when parsing JPQL

["Rick Curtis (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/OPENJPA-1741?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13615327#comment-13615327 ] 

Rick Curtis commented on OPENJPA-1741:
--------------------------------------

Closing this JIRA as I don't expect that we're ever going to make this change.
                
> Unecessary class load attempts when parsing JPQL
> ------------------------------------------------
>
>                 Key: OPENJPA-1741
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1741
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: query
>    Affects Versions: 1.2.2, 2.0.0
>            Reporter: David Minor
>            Assignee: Rick Curtis
>         Attachments: cache-class-load-attempts.patch, only-load-uppercase-java-lang.patch, skip-known-variables.patch
>
>
> When parsing JPQL, JPQLExpressionBuilder.getPathOrConstant() tries to determine if a token is a java class or enum by doing a class load (via QueryImpl.classForName()). The same token will be tried as often as it appears in the query. It might be better to
> 1) cache the results
> 2) avoid the lookup if the token is a known variable name

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