[seam-issues] [JBoss JIRA] Moved: (SOLDER-41) add getSingleResult() to PropertyQuery

Pete Muir (JIRA) jira-events at lists.jboss.org
Mon Nov 29 05:19:41 EST 2010

     [ https://jira.jboss.org/browse/SOLDER-41?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pete Muir moved WELDX-177 to SOLDER-41:

              Project: Seam Solder  (was: Weld Extensions)
                  Key: SOLDER-41  (was: WELDX-177)
    Affects Version/s:     (was: 1.0.0.Beta1)
             Assignee:     (was: Dan Allen)
        Fix Version/s: 1.0.0.Beta2
                           (was: 1.0.0.Beta2)

> add getSingleResult() to PropertyQuery
> --------------------------------------
>                 Key: SOLDER-41
>                 URL: https://jira.jboss.org/browse/SOLDER-41
>             Project: Seam Solder
>          Issue Type: Feature Request
>            Reporter: Dan Allen
>             Fix For: 1.0.0.Beta2
> PropertyQuery should offer the method getSingleResult() for the same reason it exists in the JPA Query interface: to fetch a single result but also assert that there is only one result to be fetched. If more than one property is matched when getSingleResult() is called, an exception will result. 
> Using getFirstResult() to return exactly one result is inappropriate (and could lead to bugs) because it could hide the fact that multiple properties are being inadvertently matched. As a workaround, the developer would currently have to run getResultList() to ensure only one property matches. Offering a getSingleResult() would resolve these issues.
> See http://download.oracle.com/javaee/6/api/javax/persistence/Query.html#getSingleResult()

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