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sunjincheng commented on FLINK-11068: ------------------------------------- Hi [~twalthr] for the current JIRA. we do not introduce Java expression, right? If so, we need two Table Interface, one is in `api-java` and one is in `api-scala`. For Scala user can using both String interface and Expression interface, but i am also agree Scala user can only using expression interface. any thoughts ? > Convert the API classes *Table, *Window to interfaces > ----------------------------------------------------- > > Key: FLINK-11068 > URL: https://issues.apache.org/jira/browse/FLINK-11068 > Project: Flink > Issue Type: Improvement > Components: Table API & SQL > Reporter: Timo Walther > Assignee: vinoyang > Priority: Major > > A more detailed description can be found in > [FLIP-32|https://cwiki.apache.org/confluence/display/FLINK/FLIP-32%3A+Restructure+flink-table+for+future+contributions]. > This includes: Table, GroupedTable, WindowedTable, WindowGroupedTable, > OverWindowedTable, Window, OverWindow > We can keep the "Table" Scala implementation in a planner module until it has > been converted to Java. > We can add a method to the planner later to give us a concrete instance. This > is one possibility to have a smooth transition period instead of changing all > classes at once. -- This message was sent by Atlassian JIRA (v7.6.3#76005)