org.apache.calcite.sql.validate

Class SqlUserDefinedAggFunction

java.lang.Object

org.apache.calcite.sql.SqlOperator

org.apache.calcite.sql.SqlFunction

org.apache.calcite.sql.SqlAggFunction

org.apache.calcite.sql.validate.SqlUserDefinedAggFunction

All Implemented Interfaces:

Context, Wrapper

public class SqlUserDefinedAggFunction
extends SqlAggFunction

User-defined aggregate function.

Created by the validator, after resolving a function call to a function defined in a Calcite schema.

Field Summary

Fields

Modifier and Type	Field and Description
AggregateFunction	function
RelDataTypeFactory	typeFactory This field is is technical debt; see [CALCITE-2082] Remove RelDataTypeFactory argument from SqlUserDefinedAggFunction constructor.

Fields inherited from class org.apache.calcite.sql.SqlOperator

kind, MDX_PRECEDENCE, NL

Constructor Summary

Constructors

Constructor and Description
SqlUserDefinedAggFunction(SqlIdentifier opName, SqlReturnTypeInference returnTypeInference, SqlOperandTypeInference operandTypeInference, SqlOperandTypeChecker operandTypeChecker, AggregateFunction function, boolean requiresOrder, boolean requiresOver, RelDataTypeFactory typeFactory) Creates a SqlUserDefinedAggFunction.

Method Summary

Modifier and Type	Method and Description
List<RelDataType>	getParameterTypes(RelDataTypeFactory typeFactory)
List<RelDataType>	getParamTypes()
RelDataType	getReturnType(RelDataTypeFactory typeFactory)
private List<RelDataType>	toSql(List<RelDataType> types)
private RelDataType	toSql(RelDataType type)

Methods inherited from class org.apache.calcite.sql.SqlAggFunction

allowsFilter, isAggregator, isQuantifierAllowed, requiresOrder, requiresOver, unwrap, validateCall

Methods inherited from class org.apache.calcite.sql.SqlFunction

deriveType, getFunctionType, getNameAsId, getParamNames, getSqlIdentifier, getSyntax, unparse, validateQuantifier

Methods inherited from class org.apache.calcite.sql.SqlOperator

acceptCall, acceptCall, adjustType, allowsFraming, argumentMustBeScalar, checkOperandCount, checkOperandTypes, constructArgNameList, constructArgTypeList, constructOperandList, createCall, createCall, createCall, createCall, equals, getAllowedSignatures, getAllowedSignatures, getKind, getLeftPrec, getMonotonicity, getMonotonicity, getName, getOperandCountRange, getOperandTypeChecker, getOperandTypeInference, getReturnTypeInference, getRightPrec, getSignatureTemplate, hashCode, inferReturnType, inferReturnType, isDeterministic, isDynamicFunction, isGroup, isGroupAuxiliary, isName, leftPrec, preValidateCall, requiresDecimalExpansion, rewriteCall, rightPrec, toString, unparseListClause, unparseListClause, validateOperands, validRexOperands

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

function

public final AggregateFunction function

typeFactory

public final RelDataTypeFactory typeFactory

This field is is technical debt; see [CALCITE-2082] Remove RelDataTypeFactory argument from SqlUserDefinedAggFunction constructor.

Constructor Detail

SqlUserDefinedAggFunction

public SqlUserDefinedAggFunction(SqlIdentifier opName,
                                 SqlReturnTypeInference returnTypeInference,
                                 SqlOperandTypeInference operandTypeInference,
                                 SqlOperandTypeChecker operandTypeChecker,
                                 AggregateFunction function,
                                 boolean requiresOrder,
                                 boolean requiresOver,
                                 RelDataTypeFactory typeFactory)

Creates a SqlUserDefinedAggFunction.

Method Detail

getParamTypes

public List<RelDataType> getParamTypes()

Overrides:

getParamTypes in class SqlFunction

Returns:

array of parameter types, or null for builtin function

toSql

private List<RelDataType> toSql(List<RelDataType> types)

toSql

private RelDataType toSql(RelDataType type)

getParameterTypes

public List<RelDataType> getParameterTypes(RelDataTypeFactory typeFactory)

Overrides:

getParameterTypes in class SqlAggFunction

getReturnType

public RelDataType getReturnType(RelDataTypeFactory typeFactory)

Overrides:

getReturnType in class SqlAggFunction