[
https://issues.apache.org/jira/browse/JDO-650?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14190741#comment-14190741
]
Michael Bouschen edited comment on JDO-650 at 10/31/14 4:16 PM:
----------------------------------------------------------------
I propose the following spec changes in B JDOQL BNF:
- Chapter B2 Single-String JDOQL
Range:
range ExpressionNoIf , ExpressionNoIf
- Chapter B3 Filter Specification
Expression:
ExpressionNoIf
if ( ExpressionNoIf ) ExpressionNoIf else Expression
ExpressionNoIf:
UnaryExpression
Expression InfixOp UnaryExpression
- Chapter B.8 Ordering Specification
OrderingSpec:
ExpressionNoIf Ascending NullPositionopt
ExpressionNoIf Descending NullPositionopt
- Chapter B.10 Grouping Specification
GroupingSpecs:
ExpressionNoIf
GroupingSpecs , ExpressionNoIf
HavingSpec:
having ExpressionNoIf
was (Author: mbo):
I propose the following spec changes in B JDOQL BNF:
- Chapter B2 Single-String JDOQL
Range:
range ExpressionNoIf , ExpressionNoIf
- Chapter B3 Filter Specification
Expression:
ExpressionNoIf
if ( ExpressionNoIf ) else Expression
ExpressionNoIf:
UnaryExpression
Expression InfixOp UnaryExpression
- Chapter B.8 Ordering Specification
OrderingSpec:
ExpressionNoIf Ascending NullPositionopt
ExpressionNoIf Descending NullPositionopt
- Chapter B.10 Grouping Specification
GroupingSpecs:
ExpressionNoIf
GroupingSpecs , ExpressionNoIf
HavingSpec:
having ExpressionNoIf
> 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 3.1
>
>
> 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.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
