[jira] [Updated] (FLINK-1666) Clean-up Field Expression Code

["Fabian Hueske (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-1666?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fabian Hueske updated FLINK-1666:
---------------------------------
    Component/s:     (was: Java API)
                     (was: Scala API)
                 DataSet API

> Clean-up Field Expression Code
> ------------------------------
>
>                 Key: FLINK-1666
>                 URL: https://issues.apache.org/jira/browse/FLINK-1666
>             Project: Flink
>          Issue Type: Improvement
>          Components: DataSet API
>    Affects Versions: 0.9
>            Reporter: Fabian Hueske
>
> Field expressions are supported at various places in the user facing APIs.
> However, not every feature allows exactly the same syntax. Also, code for analyzing field expressions is scattered around several places.
> Right now, most of the field expression handling is done in the {{PojoTypeInfo}}, {{CaseClassTypeInfo}}, and {{ExpressionKeys}} classes. Corner cases are inconsistently handled at several other places.
> We should clean this up and add one utility class that defines the syntax of field expressions.



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