[weld-issues] [JBoss JIRA] Created: (WELDX-177) add getSingleResult() to PropertyQuery

[Dan Allen (JIRA)]

add getSingleResult() to PropertyQuery
--------------------------------------

                 Key: WELDX-177
                 URL: https://jira.jboss.org/browse/WELDX-177
             Project: Weld Extensions
          Issue Type: Feature Request
    Affects Versions: 1.0.0.Beta1
            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()

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira