[jira] [Commented] (JENA-988) Open TDB store if exists

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

    [ https://issues.apache.org/jira/browse/JENA-988?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14624754#comment-14624754 ] 

Andy Seaborne commented on JENA-988:
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It is possible to do this by simply testing for the presence of the directory where the store might be in the usual java way.

There is some private code {[DatasetBuilderStd.isNewDatabaseArea}} that takes a pragmatic approach. It uses {{File.exists}} and tries to look for "tdb.cfg".  But because older versions of TDb did not have a configuration file, full reliable testing is not possible.


> Open TDB store if exists
> ------------------------
>
>                 Key: JENA-988
>                 URL: https://issues.apache.org/jira/browse/JENA-988
>             Project: Apache Jena
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Eugene Tenkaev
>            Priority: Minor
>
> Need method for opening TDB store if it exists in specified location without automatic creation of new one.
> For example:{code}TDBFactory.openDatasetGraph{code}
> Currently we have only one method: {code}TDBFactory.createDatasetGraph{code}



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