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From "Craig L Russell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (JDO-650) Support for conditional operator ? : in JDOQL
Date Fri, 11 Jul 2014 17:04:07 GMT

    [ https://issues.apache.org/jira/browse/JDO-650?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14059006#comment-14059006
] 

Craig L Russell commented on JDO-650:
-------------------------------------

For my money, the following is pretty clear:
salary < 100 ? "bronze" : ( salary < 1000 ? "silver" : ( salary < 10000 ? "gold"
: "platinum" ))

My issue with the other proposals is that they are pretty far away from Java...

> Support for conditional operator ? : in JDOQL
> ---------------------------------------------
>
>                 Key: JDO-650
>                 URL: https://issues.apache.org/jira/browse/JDO-650
>             Project: JDO
>          Issue Type: New Feature
>          Components: specification, tck
>    Affects Versions: JDO 2 maintenance release 2 (2.2)
>            Reporter: Michael Bouschen
>            Assignee: Michael Bouschen
>             Fix For: JDO 3.2
>
>
> JDOQL should support the Java conditional operator ? :, e.g. salay >= 1000.0 ? salary
: salary * 1.1
> The conditional operator can be mapped to the CASE-expression in SQL: CASE WHEN condition
THEN thenExpr ELSE elseExpr END. Are there any issues with non-SQL datastores when supporting
the conditional operator? 
> Another question: which part of a JDOQL query can include a conditional expression? I
propose the query filter, the having clause and the result specification.



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