Package org.apache.flink.table.runtime.operators.aggregate.window.processors

Class AbstractSyncStateWindowAggProcessor<W>

java.lang.Object

org.apache.flink.table.runtime.operators.aggregate.window.processors.WindowAggProcessorBase<W,SyncStateWindowProcessor.SyncStateContext<W>>

org.apache.flink.table.runtime.operators.aggregate.window.processors.AbstractSyncStateWindowAggProcessor<W>

All Implemented Interfaces:

Serializable, SyncStateWindowProcessor<W>, WindowProcessor<W,SyncStateWindowProcessor.SyncStateContext<W>>

Direct Known Subclasses:

AbstractSliceSyncStateWindowAggProcessor, UnsliceSyncStateWindowAggProcessor

public abstract class AbstractSyncStateWindowAggProcessor<W>
extends WindowAggProcessorBase<W,SyncStateWindowProcessor.SyncStateContext<W>>
implements SyncStateWindowProcessor<W>

A base class for window aggregate processors.

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected final class	AbstractSyncStateWindowAggProcessor.WindowIsEmptySupplier	A supplier that returns whether the window is empty.

Nested classes/interfaces inherited from interface org.apache.flink.table.runtime.operators.window.tvf.common.SyncStateWindowProcessor

SyncStateWindowProcessor.SyncStateContext<W>

Nested classes/interfaces inherited from interface org.apache.flink.table.runtime.operators.window.tvf.common.WindowProcessor

WindowProcessor.Context<W>

Field Summary

Fields

Modifier and Type	Field	Description
protected final AbstractSyncStateWindowAggProcessor<W>.WindowIsEmptySupplier	emptySupplier
protected WindowValueState<W>	windowState	state schema: [key, window, accumulator].

Fields inherited from class org.apache.flink.table.runtime.operators.aggregate.window.processors.WindowAggProcessorBase

accSerializer, aggregator, clockService, ctx, currentProgress, genAggsHandler, isEventTime, reuseOutput, shiftTimeZone, useDayLightSaving, windowTimerService

Constructor Summary

Constructors

Constructor	Description
AbstractSyncStateWindowAggProcessor(GeneratedNamespaceAggsHandleFunction<W> genAggsHandler, WindowAssigner sliceAssigner, org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.RowData> accSerializer, boolean isEventTime, int indexOfCountStar, ZoneId shiftTimeZone)

Method Summary

Modifier and Type	Method	Description
protected void	collect(org.apache.flink.table.data.RowData aggResult)
void	open(SyncStateWindowProcessor.SyncStateContext<W> context)	Initialization method for the function.
protected final void	prepareAggregator()

Methods inherited from class org.apache.flink.table.runtime.operators.aggregate.window.processors.WindowAggProcessorBase

close, collect, getWindowTimerService, initializeWatermark

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.window.tvf.common.SyncStateWindowProcessor

advanceProgress, clearWindow, fireWindow, prepareCheckpoint, processElement

Methods inherited from interface org.apache.flink.table.runtime.operators.window.tvf.common.WindowProcessor

close, createWindowSerializer, initializeWatermark

Field Details

emptySupplier

protected final AbstractSyncStateWindowAggProcessor<W>.WindowIsEmptySupplier emptySupplier

windowState

protected transient WindowValueState<W> windowState

state schema: [key, window, accumulator].

Constructor Details

AbstractSyncStateWindowAggProcessor

public AbstractSyncStateWindowAggProcessor(GeneratedNamespaceAggsHandleFunction<W> genAggsHandler,
 WindowAssigner sliceAssigner,
 org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.RowData> accSerializer,
 boolean isEventTime,
 int indexOfCountStar,
 ZoneId shiftTimeZone)

Method Details

open

public void open(SyncStateWindowProcessor.SyncStateContext<W> context)
          throws Exception

Description copied from interface: WindowProcessor

Initialization method for the function. It is called before the actual working methods.

Specified by:

open in interface WindowProcessor<W,SyncStateWindowProcessor.SyncStateContext<W>>

Overrides:

open in class WindowAggProcessorBase<W,SyncStateWindowProcessor.SyncStateContext<W>>

Throws:

Exception

prepareAggregator

protected final void prepareAggregator()
                                throws Exception

Specified by:

prepareAggregator in class WindowAggProcessorBase<W,SyncStateWindowProcessor.SyncStateContext<W>>

Throws:

Exception

collect

protected void collect(org.apache.flink.table.data.RowData aggResult)