org.apache.flink.table.runtime.operators.aggregate.window.buffers

Class RecordsWindowBuffer.Factory

java.lang.Object

org.apache.flink.table.runtime.operators.aggregate.window.buffers.RecordsWindowBuffer.Factory

All Implemented Interfaces:

Serializable, WindowBuffer.Factory

Enclosing class:

RecordsWindowBuffer

public static final class RecordsWindowBuffer.Factory
extends Object
implements WindowBuffer.Factory

Factory to create RecordsWindowBuffer with RecordsCombiner.Factory.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Factory(PagedTypeSerializer<RowData> keySer, AbstractRowDataSerializer<RowData> inputSer, RecordsCombiner.Factory combinerFactory)

Method Summary

Modifier and Type	Method and Description
WindowBuffer	create(Object operatorOwner, MemoryManager memoryManager, long memorySize, RuntimeContext runtimeContext, WindowTimerService<Long> timerService, KeyedStateBackend<RowData> stateBackend, WindowState<Long> windowState, boolean isEventTime, ZoneId shiftTimeZone) Creates a WindowBuffer that buffers elements in memory before flushing.

Methods inherited from class java.lang.Object

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

Constructor Detail

Factory

public Factory(PagedTypeSerializer<RowData> keySer,
               AbstractRowDataSerializer<RowData> inputSer,
               RecordsCombiner.Factory combinerFactory)

Method Detail

create

public WindowBuffer create(Object operatorOwner,
                           MemoryManager memoryManager,
                           long memorySize,
                           RuntimeContext runtimeContext,
                           WindowTimerService<Long> timerService,
                           KeyedStateBackend<RowData> stateBackend,
                           WindowState<Long> windowState,
                           boolean isEventTime,
                           ZoneId shiftTimeZone)
                    throws Exception

Description copied from interface: WindowBuffer.Factory

Creates a WindowBuffer that buffers elements in memory before flushing.

Specified by:

create in interface WindowBuffer.Factory

Parameters:

operatorOwner - the owner of the operator

memoryManager - the manager that governs memory by Flink framework

memorySize - the managed memory size can be used by this operator

runtimeContext - the current RuntimeContext

timerService - the service to register event-time and processing-time timers

stateBackend - the state backend to accessing states

windowState - the window state to flush buffered data into.

isEventTime - indicates whether the operator works in event-time or processing-time mode, used for register corresponding timers.

shiftTimeZone - the shift timezone of the window

Throws:

IOException - thrown if the buffer can't be opened

Exception