Package org.apache.flink.table.planner.plan.logical

Interface WindowSpec

All Known Implementing Classes:

CumulativeWindowSpec, HoppingWindowSpec, SessionWindowSpec, TumblingWindowSpec

public interface WindowSpec

Logical representation of a window specification.

Method Summary

Modifier and Type	Method	Description
boolean	isAlignedWindow()	Return true if the window is aligned.
String	toSummaryString(String windowing, String[] inputFieldNames)

Method Details

toSummaryString

String toSummaryString(String windowing,
 String[] inputFieldNames)

isAlignedWindow

boolean isAlignedWindow()

Return true if the window is aligned.

See more details about aligned window and unaligned window in WindowAggOperator.