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https://issues.apache.org/jira/browse/OLINGO-1120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15996933#comment-15996933
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Ramesh Reddy commented on OLINGO-1120:
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Was there a parsing error?
> Is grouping in $filter with "(" and ")" possible?
> --------------------------------------------------
>
> Key: OLINGO-1120
> URL: https://issues.apache.org/jira/browse/OLINGO-1120
> Project: Olingo
> Issue Type: Question
> Components: odata4-server
> Affects Versions: (Java) V4 4.3.0
> Reporter: Werner Mueller
>
> I'm implementing an OData-server-application with Version v4.3.0 of Olingo.
> According to
> https://olingo.apache.org/doc/odata4/tutorials/sqo_f/tutorial_sqo_f.html
> I created an ExpressionVisitor
> to construct a valid JDBC/SQL-where constraint.
> I had a look to
> https://olingo.apache.org/doc/odata2/tutorials/Olingo_Tutorial_AdvancedRead_FilterVisitor.html
> also.
> My problem is with grouping.
> OData states that the Operators "(" and ")" should have the highest
> precedence (5.1.1.9 Operator Precedence,
> http://docs.oasis-open.org/odata/odata/v4.0/os/part2-url-conventions/odata-v4.0-os-part2-url-conventions.html)
> How can I handle grouping with the ExpressionVisitor?
> These are my urls for testing:
> http://localhost:8080/Odata.svc/SomeEnittySet?$filter=(id gt 5 or shortName
> ne 'xxx' or name eq 'test') or (name eq 'xxx' and id lt 567)
> and
> http://localhost:8080/Odata.svc/SomeEnittySet?$filter=(id gt 5 or shortName
> ne 'xxx' or name eq 'test') or name eq 'xxx' and id lt 567
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