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From "Donald Woods (JIRA)" <j...@apache.org>
Subject [jira] Issue Comment Edited: (OPENJPA-878) Support default query hint for query timeout
Date Fri, 13 Mar 2009 20:14:55 GMT

    [ https://issues.apache.org/jira/browse/OPENJPA-878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12681884#action_12681884
] 

Donald Woods edited comment on OPENJPA-878 at 3/13/09 1:14 PM:
---------------------------------------------------------------

Updated patch (OPENJPA-878-20090313.patch) that addresses Pinaki's request to centralize the
set query/lock timeout code into the DBDictionary.


      was (Author: drwoods):
    Updated patch that addresses Pinaki's request to centralize the set query/lock timeout
code into the DBDictionary.

  
> Support default query hint for query timeout
> --------------------------------------------
>
>                 Key: OPENJPA-878
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-878
>             Project: OpenJPA
>          Issue Type: Sub-task
>          Components: query
>    Affects Versions: 2.0.0
>            Reporter: Donald Woods
>            Assignee: Donald Woods
>             Fix For: 2.0.0
>
>         Attachments: OPENJPA-878-20090305-draft.patch, OPENJPA-878-20090306.patch, OPENJPA-878-20090310-eclipse.patch,
OPENJPA-878-20090310.patch, OPENJPA-878-20090311-eclipse.patch, OPENJPA-878-20090311.patch,
OPENJPA-878-20090311.patch, OPENJPA-878-20090312-minimal.patch, OPENJPA-878-20090313.patch,
OPENJPA-878-docs-20090311.patch
>
>
> Support default query hint for query timeout as defined in section 3.6.4 of the spec.
> A new hint can be supplied for Java SE and Java EE environments -
>     javax.persistence.query.timeout // query timeout in seconds
> Can be used in the following:
>     Methods - Query.setHint()
>     Annotations (via QueryHint) - NamedQuery, NativeNamedQuery 
>     Properties - Persistence.createEntityManagerFactory, persistence.xml
> The following methods can return a javax.persistence.QueryTimeoutException: getResultList(),
getSingleResult(), executeUpdate().
> If a QTE is thrown, the current transaction (if active) should not be marked for rollback.
> If the DB query timeout causes a rollback, then a PersistenceException should be thrown
instead (see 3.6.1).

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