Package 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	Description
Factory(PagedTypeSerializer<org.apache.flink.table.data.RowData> keySer, AbstractRowDataSerializer<org.apache.flink.table.data.RowData> inputSer, RecordsCombiner.Factory combinerFactory)

Method Summary

Modifier and Type	Method	Description
WindowBuffer	create(Object operatorOwner, org.apache.flink.runtime.memory.MemoryManager memoryManager, long memorySize, org.apache.flink.api.common.functions.RuntimeContext runtimeContext, WindowTimerService<Long> timerService, org.apache.flink.runtime.state.KeyedStateBackend<org.apache.flink.table.data.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 Details

Factory

public Factory(PagedTypeSerializer<org.apache.flink.table.data.RowData> keySer,
 AbstractRowDataSerializer<org.apache.flink.table.data.RowData> inputSer,
 RecordsCombiner.Factory combinerFactory)

Method Details

create

public WindowBuffer create(Object operatorOwner,
 org.apache.flink.runtime.memory.MemoryManager memoryManager,
 long memorySize,
 org.apache.flink.api.common.functions.RuntimeContext runtimeContext,
 WindowTimerService<Long> timerService,
 org.apache.flink.runtime.state.KeyedStateBackend<org.apache.flink.table.data.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