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

类 SumWithRetractAggFunction.IntSumWithRetractAggFunction

java.lang.Object

org.apache.flink.table.functions.UserDefinedFunction

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

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

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

所有已实现的接口:

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

封闭类:

SumWithRetractAggFunction

public static class SumWithRetractAggFunction.IntSumWithRetractAggFunction
extends SumWithRetractAggFunction

Built-in Int Sum with retract aggregate function.

另请参阅:

序列化表格

嵌套类概要

从类继承的嵌套类/接口 org.apache.flink.table.planner.functions.aggfunctions.SumWithRetractAggFunction

SumWithRetractAggFunction.ByteSumWithRetractAggFunction, SumWithRetractAggFunction.DecimalSumWithRetractAggFunction, SumWithRetractAggFunction.DoubleSumWithRetractAggFunction, SumWithRetractAggFunction.FloatSumWithRetractAggFunction, SumWithRetractAggFunction.IntSumWithRetractAggFunction, SumWithRetractAggFunction.LongSumWithRetractAggFunction, SumWithRetractAggFunction.ShortSumWithRetractAggFunction

构造器概要

构造器

构造器和说明
IntSumWithRetractAggFunction()

方法概要

限定符和类型	方法和说明
org.apache.flink.table.types.DataType	getResultType() The result type of the function.
protected org.apache.flink.table.expressions.Expression	zeroLiteral()

从类继承的方法 org.apache.flink.table.planner.functions.aggfunctions.SumWithRetractAggFunction

accumulateExpressions, adjustedMinus, adjustedPlus, aggBufferAttributes, getAggBufferTypes, getValueExpression, initialValuesExpressions, mergeExpressions, operandCount, retractExpressions

从类继承的方法 org.apache.flink.table.planner.functions.aggfunctions.DeclarativeAggregateFunction

getKind, getTypeInference, mergeOperand, mergeOperands, operand, operands

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

从接口继承的方法 org.apache.flink.table.functions.FunctionDefinition

getRequirements, isDeterministic

构造器详细资料

IntSumWithRetractAggFunction

public IntSumWithRetractAggFunction()

方法详细资料

getResultType

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

从类复制的说明: DeclarativeAggregateFunction

The result type of the function.

指定者:

getResultType 在类中 DeclarativeAggregateFunction

zeroLiteral

protected org.apache.flink.table.expressions.Expression zeroLiteral()

指定者:

zeroLiteral 在类中 SumWithRetractAggFunction