org.apache.flink.table.runtime.operators.over.frame

Class InsensitiveOverFrame

java.lang.Object

org.apache.flink.table.runtime.operators.over.frame.InsensitiveOverFrame

All Implemented Interfaces:

Serializable, OverWindowFrame

public class InsensitiveOverFrame
extends Object
implements OverWindowFrame

The insensitive window frame calculates the statements which shouldn't care the window frame, for example RANK/DENSE_RANK/PERCENT_RANK/CUME_DIST/ROW_NUMBER.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
InsensitiveOverFrame(GeneratedAggsHandleFunction aggsHandleFunction)

Method Summary

Modifier and Type	Method and Description
void	open(ExecutionContext ctx) Open to init with ExecutionContext.
void	prepare(ResettableExternalBuffer rows) Prepare for next partition.
BaseRow	process(int index, BaseRow current) return the ACC of the window frame.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.flink.table.runtime.operators.over.frame.OverWindowFrame

getNextOrNull

Constructor Detail

InsensitiveOverFrame

public InsensitiveOverFrame(GeneratedAggsHandleFunction aggsHandleFunction)

Method Detail

open

public void open(ExecutionContext ctx)
          throws Exception

Description copied from interface: OverWindowFrame

Open to init with ExecutionContext.

Specified by:

open in interface OverWindowFrame

Throws:

Exception

prepare

public void prepare(ResettableExternalBuffer rows)
             throws Exception

Description copied from interface: OverWindowFrame

Prepare for next partition.

Specified by:

prepare in interface OverWindowFrame

Throws:

Exception

process

public BaseRow process(int index,
                       BaseRow current)
                throws Exception

Description copied from interface: OverWindowFrame

return the ACC of the window frame.

Specified by:

process in interface OverWindowFrame

Throws:

Exception