Package org.apache.calcite.sql.validate

Class SqlUserDefinedTableFunction

java.lang.Object

org.apache.calcite.sql.SqlOperator

org.apache.calcite.sql.SqlFunction

org.apache.calcite.sql.validate.SqlUserDefinedFunction

org.apache.calcite.sql.validate.SqlUserDefinedTableFunction

All Implemented Interfaces:

SqlTableFunction

public class SqlUserDefinedTableFunction
extends SqlUserDefinedFunction
implements SqlTableFunction

User-defined table function.

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

Field Summary

Fields inherited from class org.apache.calcite.sql.validate.SqlUserDefinedFunction

function

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

kind, MDX_PRECEDENCE, NL

Constructor Summary

Constructors

Constructor	Description
SqlUserDefinedTableFunction(SqlIdentifier opName, SqlKind kind, SqlReturnTypeInference returnTypeInference, SqlOperandTypeInference operandTypeInference, @Nullable SqlOperandMetadata operandMetadata, TableFunction function)	Creates a user-defined table function.
SqlUserDefinedTableFunction(SqlIdentifier opName, SqlReturnTypeInference returnTypeInference, SqlOperandTypeInference operandTypeInference, @Nullable SqlOperandTypeChecker operandTypeChecker, List<RelDataType> paramTypes, TableFunction function)	Deprecated.

Method Summary

Modifier and Type	Method	Description
Type	getElementType(SqlOperatorBinding callBinding)	Returns the row type of the table yielded by this function when applied to given arguments.
TableFunction	getFunction()	Returns function that implements given operator call.
SqlReturnTypeInference	getRowTypeInference()	Returns the record type of the table yielded by this function when applied to given arguments.

Methods inherited from class org.apache.calcite.sql.validate.SqlUserDefinedFunction

getOperandTypeChecker, getParamNames

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

deriveType, getFunctionType, getNameAsId, getParamTypes, getSqlIdentifier, getSyntax, isQuantifierAllowed, unparse, validateCall, validateQuantifier

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

acceptCall, acceptCall, adjustType, allowsFraming, argumentMustBeScalar, checkOperandCount, checkOperandTypes, constructArgNameList, constructArgTypeList, constructOperandList, createCall, createCall, createCall, createCall, createCall, createCall, createCall, deriveOperandType, equals, getAllowedSignatures, getAllowedSignatures, getKind, getLeftPrec, getMonotonicity, getMonotonicity, getName, getOperandCountRange, getOperandTypeInference, getReturnTypeInference, getRightPrec, getSignatureTemplate, getStrongPolicyInference, hashCode, inferReturnType, inferReturnType, isAggregator, isDeterministic, isDynamicFunction, isGroup, isGroupAuxiliary, isName, isSymmetrical, leftPrec, not, preValidateCall, requiresDecimalExpansion, requiresOrder, requiresOver, reverse, rewriteCall, rightPrec, toString, unparseListClause, unparseListClause, validateOperands, validRexOperands

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.calcite.sql.SqlTableFunction

tableCharacteristic

Constructor Details

SqlUserDefinedTableFunction

@Deprecated
public SqlUserDefinedTableFunction(SqlIdentifier opName,
 SqlReturnTypeInference returnTypeInference,
 SqlOperandTypeInference operandTypeInference,
 @Nullable SqlOperandTypeChecker operandTypeChecker,
 List<RelDataType> paramTypes,
 TableFunction function)

Deprecated.

SqlUserDefinedTableFunction

public SqlUserDefinedTableFunction(SqlIdentifier opName,
 SqlKind kind,
 SqlReturnTypeInference returnTypeInference,
 SqlOperandTypeInference operandTypeInference,
 @Nullable SqlOperandMetadata operandMetadata,
 TableFunction function)

Creates a user-defined table function.

Method Details

getFunction

public TableFunction getFunction()

Returns function that implements given operator call.

Overrides:

getFunction in class SqlUserDefinedFunction

Returns:

function that implements given operator call

getRowTypeInference

public SqlReturnTypeInference getRowTypeInference()

Description copied from interface: SqlTableFunction

Returns the record type of the table yielded by this function when applied to given arguments. Only literal arguments are passed, non-literal are replaced with default values (null, 0, false, etc).

Specified by:

getRowTypeInference in interface SqlTableFunction

Returns:

strategy to infer the row type of a call to this function

getElementType

public Type getElementType(SqlOperatorBinding callBinding)

Returns the row type of the table yielded by this function when applied to given arguments. Only literal arguments are passed, non-literal are replaced with default values (null, 0, false, etc).

Parameters:

callBinding - Operand bound to arguments

Returns:

element type of the table (e.g. Object[].class)