org.apache.flink.table.runtime.operators.join.interval

Class RowTimeIntervalJoin

java.lang.Object

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

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

org.apache.flink.table.runtime.operators.join.interval.RowTimeIntervalJoin

All Implemented Interfaces:

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

public final class RowTimeIntervalJoin
extends org.apache.flink.streaming.api.functions.co.KeyedCoProcessFunction<org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>

The function to execute row(event) time interval stream inner-join.

See Also:

Serialized Form

Nested Class Summary

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

org.apache.flink.streaming.api.functions.co.KeyedCoProcessFunction.Context, org.apache.flink.streaming.api.functions.co.KeyedCoProcessFunction.OnTimerContext

Field Summary

Fields

Modifier and Type	Field and Description
protected long	allowedLateness
protected long	leftOperatorTime
protected long	leftRelativeSize
protected long	rightOperatorTime
protected long	rightRelativeSize

Constructor Summary

Constructors

Constructor and Description
RowTimeIntervalJoin(FlinkJoinType joinType, long leftLowerBound, long leftUpperBound, long allowedLateness, RowDataTypeInfo leftType, RowDataTypeInfo rightType, GeneratedFunction<org.apache.flink.api.common.functions.FlatJoinFunction<org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>> genJoinFunc, int leftTimeIdx, int rightTimeIdx)

Method Summary

Modifier and Type	Method and Description
long	getMaxOutputDelay() Get the maximum interval between receiving a row and emitting it (as part of a joined result).
void	onTimer(long timestamp, org.apache.flink.streaming.api.functions.co.KeyedCoProcessFunction.OnTimerContext ctx, org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out)
void	open(org.apache.flink.configuration.Configuration parameters)
void	processElement1(org.apache.flink.table.data.RowData leftRow, org.apache.flink.streaming.api.functions.co.KeyedCoProcessFunction.Context ctx, org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out)
void	processElement2(org.apache.flink.table.data.RowData rightRow, org.apache.flink.streaming.api.functions.co.KeyedCoProcessFunction.Context ctx, org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out)

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

Field Detail

leftRelativeSize

protected final long leftRelativeSize

rightRelativeSize

protected final long rightRelativeSize

allowedLateness

protected final long allowedLateness

leftOperatorTime

protected long leftOperatorTime

rightOperatorTime

protected long rightOperatorTime

Constructor Detail

RowTimeIntervalJoin

public RowTimeIntervalJoin(FlinkJoinType joinType,
                           long leftLowerBound,
                           long leftUpperBound,
                           long allowedLateness,
                           RowDataTypeInfo leftType,
                           RowDataTypeInfo rightType,
                           GeneratedFunction<org.apache.flink.api.common.functions.FlatJoinFunction<org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>> genJoinFunc,
                           int leftTimeIdx,
                           int rightTimeIdx)

Method Detail

getMaxOutputDelay

public long getMaxOutputDelay()

Get the maximum interval between receiving a row and emitting it (as part of a joined result). This is the time interval by which watermarks need to be held back.

Returns:

the maximum delay for the outputs

open

public void open(org.apache.flink.configuration.Configuration parameters)
          throws Exception

Specified by:

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

Overrides:

open in class org.apache.flink.api.common.functions.AbstractRichFunction

Throws:

Exception

processElement1

public void processElement1(org.apache.flink.table.data.RowData leftRow,
                            org.apache.flink.streaming.api.functions.co.KeyedCoProcessFunction.Context ctx,
                            org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out)
                     throws Exception

Specified by:

processElement1 in class org.apache.flink.streaming.api.functions.co.KeyedCoProcessFunction<org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>

Throws:

Exception

processElement2

public void processElement2(org.apache.flink.table.data.RowData rightRow,
                            org.apache.flink.streaming.api.functions.co.KeyedCoProcessFunction.Context ctx,
                            org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out)
                     throws Exception

Specified by:

processElement2 in class org.apache.flink.streaming.api.functions.co.KeyedCoProcessFunction<org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>

Throws:

Exception

onTimer

public void onTimer(long timestamp,
                    org.apache.flink.streaming.api.functions.co.KeyedCoProcessFunction.OnTimerContext ctx,
                    org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out)
             throws Exception

Overrides:

onTimer in class org.apache.flink.streaming.api.functions.co.KeyedCoProcessFunction<org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>

Throws:

Exception