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

类 RankAggFunction

java.lang.Object

org.apache.flink.table.functions.UserDefinedFunction

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

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

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

所有已实现的接口:

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

public class RankAggFunction
extends RankLikeAggFunctionBase

built-in rank aggregate function.

另请参阅:

序列化表格

字段概要

从类继承的字段 org.apache.flink.table.planner.functions.aggfunctions.RankLikeAggFunctionBase

lastValues, orderKeyTypes, sequence

构造器概要

构造器

构造器和说明
RankAggFunction(org.apache.flink.table.types.logical.LogicalType[] orderKeyTypes)

方法概要

限定符和类型	方法和说明
org.apache.flink.table.expressions.Expression[]	accumulateExpressions() Expressions for accumulating the mutable aggregation buffer based on an input row.
org.apache.flink.table.expressions.UnresolvedReferenceExpression[]	aggBufferAttributes() All fields of the aggregate buffer.
org.apache.flink.table.types.DataType[]	getAggBufferTypes() All types of the aggregate buffer.
org.apache.flink.table.expressions.Expression[]	initialValuesExpressions() Expressions for initializing empty aggregation buffers.

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

generateInitLiteral, getResultType, getValueExpression, mergeExpressions, operandCount, orderKeyEqualsExpression, 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

RankAggFunction

public RankAggFunction(org.apache.flink.table.types.logical.LogicalType[] orderKeyTypes)

方法详细资料

aggBufferAttributes

public org.apache.flink.table.expressions.UnresolvedReferenceExpression[] aggBufferAttributes()

从类复制的说明: DeclarativeAggregateFunction

All fields of the aggregate buffer.

指定者:

aggBufferAttributes 在类中 DeclarativeAggregateFunction

getAggBufferTypes

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

从类复制的说明: DeclarativeAggregateFunction

All types of the aggregate buffer.

指定者:

getAggBufferTypes 在类中 DeclarativeAggregateFunction

initialValuesExpressions

public org.apache.flink.table.expressions.Expression[] initialValuesExpressions()

从类复制的说明: DeclarativeAggregateFunction

Expressions for initializing empty aggregation buffers.

指定者:

initialValuesExpressions 在类中 DeclarativeAggregateFunction

accumulateExpressions

public org.apache.flink.table.expressions.Expression[] accumulateExpressions()

从类复制的说明: DeclarativeAggregateFunction

Expressions for accumulating the mutable aggregation buffer based on an input row.

指定者:

accumulateExpressions 在类中 DeclarativeAggregateFunction