org.apache.flink.table.planner.functions.aggfunctions

Class ListAggWithRetractAggFunction

java.lang.Object

org.apache.flink.table.functions.UserDefinedFunction

org.apache.flink.table.functions.ImperativeAggregateFunction<T,ACC>

org.apache.flink.table.functions.AggregateFunction<T,ACC>

org.apache.flink.table.planner.functions.aggfunctions.InternalAggregateFunction<org.apache.flink.table.data.StringData,ListAggWithRetractAggFunction.ListAggWithRetractAccumulator>

org.apache.flink.table.planner.functions.aggfunctions.ListAggWithRetractAggFunction

All Implemented Interfaces:

Serializable, org.apache.flink.table.functions.FunctionDefinition

@Internal
public final class ListAggWithRetractAggFunction
extends InternalAggregateFunction<org.apache.flink.table.data.StringData,ListAggWithRetractAggFunction.ListAggWithRetractAccumulator>

Built-in LISTAGG with retraction aggregate function.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ListAggWithRetractAggFunction.ListAggWithRetractAccumulator Accumulator for LISTAGG with retraction.

Constructor Summary

Constructors

Constructor and Description
ListAggWithRetractAggFunction()

Method Summary

Modifier and Type	Method and Description
void	accumulate(ListAggWithRetractAggFunction.ListAggWithRetractAccumulator acc, org.apache.flink.table.data.StringData value)
ListAggWithRetractAggFunction.ListAggWithRetractAccumulator	createAccumulator()
org.apache.flink.table.types.DataType	getAccumulatorDataType()
org.apache.flink.table.types.DataType[]	getInputDataTypes()
org.apache.flink.table.types.DataType	getOutputDataType()
org.apache.flink.table.data.StringData	getValue(ListAggWithRetractAggFunction.ListAggWithRetractAccumulator acc)
void	merge(ListAggWithRetractAggFunction.ListAggWithRetractAccumulator acc, Iterable<ListAggWithRetractAggFunction.ListAggWithRetractAccumulator> its)
void	resetAccumulator(ListAggWithRetractAggFunction.ListAggWithRetractAccumulator acc)
void	retract(ListAggWithRetractAggFunction.ListAggWithRetractAccumulator acc, org.apache.flink.table.data.StringData value)

Methods inherited from class org.apache.flink.table.planner.functions.aggfunctions.InternalAggregateFunction

getTypeInference

Methods inherited from class org.apache.flink.table.functions.AggregateFunction

getKind

Methods inherited from class org.apache.flink.table.functions.ImperativeAggregateFunction

getAccumulatorType, getResultType

Methods inherited from class org.apache.flink.table.functions.UserDefinedFunction

close, functionIdentifier, open, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.table.functions.FunctionDefinition

getRequirements, isDeterministic

Constructor Detail

ListAggWithRetractAggFunction

public ListAggWithRetractAggFunction()

Method Detail

getInputDataTypes

public org.apache.flink.table.types.DataType[] getInputDataTypes()

Specified by:

getInputDataTypes in class InternalAggregateFunction<org.apache.flink.table.data.StringData,ListAggWithRetractAggFunction.ListAggWithRetractAccumulator>

getAccumulatorDataType

public org.apache.flink.table.types.DataType getAccumulatorDataType()

Specified by:

getAccumulatorDataType in class InternalAggregateFunction<org.apache.flink.table.data.StringData,ListAggWithRetractAggFunction.ListAggWithRetractAccumulator>

getOutputDataType

public org.apache.flink.table.types.DataType getOutputDataType()

Specified by:

getOutputDataType in class InternalAggregateFunction<org.apache.flink.table.data.StringData,ListAggWithRetractAggFunction.ListAggWithRetractAccumulator>

createAccumulator

public ListAggWithRetractAggFunction.ListAggWithRetractAccumulator createAccumulator()

Specified by:

createAccumulator in class org.apache.flink.table.functions.ImperativeAggregateFunction<org.apache.flink.table.data.StringData,ListAggWithRetractAggFunction.ListAggWithRetractAccumulator>

accumulate

public void accumulate(ListAggWithRetractAggFunction.ListAggWithRetractAccumulator acc,
                       org.apache.flink.table.data.StringData value)
                throws Exception

Throws:

Exception

retract

public void retract(ListAggWithRetractAggFunction.ListAggWithRetractAccumulator acc,
                    org.apache.flink.table.data.StringData value)
             throws Exception

Throws:

Exception

merge

public void merge(ListAggWithRetractAggFunction.ListAggWithRetractAccumulator acc,
                  Iterable<ListAggWithRetractAggFunction.ListAggWithRetractAccumulator> its)
           throws Exception

Throws:

Exception

getValue

public org.apache.flink.table.data.StringData getValue(ListAggWithRetractAggFunction.ListAggWithRetractAccumulator acc)

Specified by:

getValue in class org.apache.flink.table.functions.AggregateFunction<org.apache.flink.table.data.StringData,ListAggWithRetractAggFunction.ListAggWithRetractAccumulator>

resetAccumulator

public void resetAccumulator(ListAggWithRetractAggFunction.ListAggWithRetractAccumulator acc)