[jira] [Commented] (METAMODEL-47) Excel DataContext may break if schema is not loaded at time of executing query

["Kasper Sørensen (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/METAMODEL-47?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13955193#comment-13955193 ] 

Kasper Sørensen commented on METAMODEL-47:
------------------------------------------

Also posted review request: https://reviews.apache.org/r/19842/

> Excel DataContext may break if schema is not loaded at time of executing query
> ------------------------------------------------------------------------------
>
>                 Key: METAMODEL-47
>                 URL: https://issues.apache.org/jira/browse/METAMODEL-47
>             Project: Metamodel
>          Issue Type: Bug
>            Reporter: Kasper Sørensen
>            Assignee: Kasper Sørensen
>            Priority: Critical
>
> In our application of MetaModel we are now seeing some situations where the ExcelDataContext is throwing exceptions due to internal IDs of sheets are not mapped to table names at the time of executing a query.
> It happens because we have one DataContext which is used to explore the schema, then the query is built and then later another instance of ExcelDataContext may fire the query. But it doesn't work properly because the second ExcelDataContext has not yet loaded it's schema definition.
> We already fixed this issue in eobjects.org MetaModel (needed a hotfix urgently), see this revision:
> http://eobjects.org/trac/changeset/5683



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