Package org.apache.flink.table.runtime.operators.rank.async

Class AbstractAsyncStateTopNFunction

java.lang.Object

org.apache.flink.api.common.functions.AbstractRichFunction

org.apache.flink.streaming.api.functions.KeyedProcessFunction<org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>

org.apache.flink.table.runtime.operators.rank.AbstractTopNFunction

org.apache.flink.table.runtime.operators.rank.async.AbstractAsyncStateTopNFunction

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.RichFunction

Direct Known Subclasses:

AsyncStateAppendOnlyTopNFunction, AsyncStateFastTop1Function

public abstract class AbstractAsyncStateTopNFunction
extends AbstractTopNFunction

Base class for TopN Function with async state api.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.flink.table.runtime.operators.rank.AbstractTopNFunction

AbstractTopNFunction.AbstractTopNHelper

Nested classes/interfaces inherited from class org.apache.flink.streaming.api.functions.KeyedProcessFunction

org.apache.flink.streaming.api.functions.KeyedProcessFunction.Context, org.apache.flink.streaming.api.functions.KeyedProcessFunction.OnTimerContext

Field Summary

Fields inherited from class org.apache.flink.table.runtime.operators.rank.AbstractTopNFunction

constantRankEnd, hitCount, inputRowType, invalidCounter, isConstantRankEnd, keyContext, outputRankNumber, rankEndFetcher, rankStart, requestCount, sortKeyComparator, sortKeySelector, ttlConfig

Constructor Summary

Constructors

Constructor	Description
AbstractAsyncStateTopNFunction(org.apache.flink.api.common.state.StateTtlConfig ttlConfig, InternalTypeInfo<org.apache.flink.table.data.RowData> inputRowType, GeneratedRecordComparator generatedSortKeyComparator, RowDataKeySelector sortKeySelector, RankType rankType, RankRange rankRange, boolean generateUpdateBefore, boolean outputRankNumber)

Method Summary

Modifier and Type	Method	Description
protected org.apache.flink.api.common.state.v2.StateFuture<Long>	initRankEnd(org.apache.flink.table.data.RowData row)	Initialize rank end.
void	open(org.apache.flink.api.common.functions.OpenContext openContext)

Methods inherited from class org.apache.flink.table.runtime.operators.rank.AbstractTopNFunction

checkSortKeyInBufferRange, collectDelete, collectDelete, collectInsert, collectInsert, collectUpdateAfter, collectUpdateAfter, collectUpdateBefore, collectUpdateBefore, getDefaultTopNSize, hasOffset, isInRankRange, registerMetric, registerMetric, setKeyContext

Methods inherited from class org.apache.flink.streaming.api.functions.KeyedProcessFunction

onTimer, processElement

Methods inherited from class org.apache.flink.api.common.functions.AbstractRichFunction

close, getIterationRuntimeContext, getRuntimeContext, setRuntimeContext

Methods inherited from class java.lang.Object

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

Constructor Details

AbstractAsyncStateTopNFunction

public AbstractAsyncStateTopNFunction(org.apache.flink.api.common.state.StateTtlConfig ttlConfig,
 InternalTypeInfo<org.apache.flink.table.data.RowData> inputRowType,
 GeneratedRecordComparator generatedSortKeyComparator,
 RowDataKeySelector sortKeySelector,
 RankType rankType,
 RankRange rankRange,
 boolean generateUpdateBefore,
 boolean outputRankNumber)

Method Details

open

public void open(org.apache.flink.api.common.functions.OpenContext openContext)
          throws Exception

Specified by:

open in interface org.apache.flink.api.common.functions.RichFunction

Overrides:

open in class AbstractTopNFunction

Throws:

Exception

initRankEnd

protected org.apache.flink.api.common.state.v2.StateFuture<Long> initRankEnd(org.apache.flink.table.data.RowData row)

Initialize rank end.

Parameters:

row - input record

Returns:

rank end