org.apache.flink.table.runtime.functions.aggregate

类 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.runtime.functions.aggregate.BuiltInAggregateFunction<org.apache.flink.table.data.StringData,ListAggWithRetractAggFunction.ListAggWithRetractAccumulator>

org.apache.flink.table.runtime.functions.aggregate.ListAggWithRetractAggFunction

所有已实现的接口:

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

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

Built-in LISTAGG with retraction aggregate function.

另请参阅:

序列化表格

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	ListAggWithRetractAggFunction.ListAggWithRetractAccumulator Accumulator for LISTAGG with retraction.

构造器概要

构造器

构造器和说明
ListAggWithRetractAggFunction()

方法概要

限定符和类型	方法和说明
void	accumulate(ListAggWithRetractAggFunction.ListAggWithRetractAccumulator acc, org.apache.flink.table.data.StringData value)
ListAggWithRetractAggFunction.ListAggWithRetractAccumulator	createAccumulator()
org.apache.flink.table.types.DataType	getAccumulatorDataType()
List<org.apache.flink.table.types.DataType>	getArgumentDataTypes()
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)

从类继承的方法 org.apache.flink.table.runtime.functions.aggregate.BuiltInAggregateFunction

getRequirements, getTypeInference, isDeterministic

从类继承的方法 org.apache.flink.table.functions.AggregateFunction

getKind

从类继承的方法 org.apache.flink.table.functions.ImperativeAggregateFunction

getAccumulatorType, getResultType

从类继承的方法 org.apache.flink.table.functions.UserDefinedFunction

close, functionIdentifier, open, toString

从类继承的方法 java.lang.Object

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

构造器详细资料

ListAggWithRetractAggFunction

public ListAggWithRetractAggFunction()

方法详细资料

getArgumentDataTypes

public List<org.apache.flink.table.types.DataType> getArgumentDataTypes()

覆盖:

getArgumentDataTypes 在类中 BuiltInAggregateFunction<org.apache.flink.table.data.StringData,ListAggWithRetractAggFunction.ListAggWithRetractAccumulator>

getAccumulatorDataType

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

覆盖:

getAccumulatorDataType 在类中 BuiltInAggregateFunction<org.apache.flink.table.data.StringData,ListAggWithRetractAggFunction.ListAggWithRetractAccumulator>

getOutputDataType

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

覆盖:

getOutputDataType 在类中 BuiltInAggregateFunction<org.apache.flink.table.data.StringData,ListAggWithRetractAggFunction.ListAggWithRetractAccumulator>

createAccumulator

public ListAggWithRetractAggFunction.ListAggWithRetractAccumulator createAccumulator()

指定者:

createAccumulator 在类中 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

抛出:

Exception

retract

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

抛出:

Exception

merge

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

抛出:

Exception

getValue

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

指定者:

getValue 在类中 org.apache.flink.table.functions.AggregateFunction<org.apache.flink.table.data.StringData,ListAggWithRetractAggFunction.ListAggWithRetractAccumulator>

resetAccumulator

public void resetAccumulator(ListAggWithRetractAggFunction.ListAggWithRetractAccumulator acc)