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

Class SlidingOverFrame

java.lang.Object

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

All Implemented Interfaces:

Serializable, OverWindowFrame

Direct Known Subclasses:

RangeSlidingOverFrame, RowSlidingOverFrame

public abstract class SlidingOverFrame
extends Object
implements OverWindowFrame

The sliding window frame. See RowSlidingOverFrame and RangeSlidingOverFrame.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SlidingOverFrame(RowType inputType, RowType valueType, 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.

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, process

Constructor Detail

SlidingOverFrame

public SlidingOverFrame(RowType inputType,
                        RowType valueType,
                        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