org.apache.flink.table.planner.functions.inference

Class TypeInferenceOperandChecker

java.lang.Object

org.apache.flink.table.planner.functions.inference.TypeInferenceOperandChecker

All Implemented Interfaces:

org.apache.calcite.sql.type.SqlOperandTypeChecker

@Internal
public final class TypeInferenceOperandChecker
extends Object
implements org.apache.calcite.sql.type.SqlOperandTypeChecker

A SqlOperandTypeChecker backed by TypeInference.

Note: This class must be kept in sync with TypeInferenceUtil.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.calcite.sql.type.SqlOperandTypeChecker

org.apache.calcite.sql.type.SqlOperandTypeChecker.Consistency

Constructor Summary

Constructors

Constructor and Description
TypeInferenceOperandChecker(DataTypeFactory dataTypeFactory, FunctionDefinition definition, TypeInference typeInference)

Method Summary

Modifier and Type	Method and Description
boolean	checkOperandTypes(org.apache.calcite.sql.SqlCallBinding callBinding, boolean throwOnFailure)
String	getAllowedSignatures(org.apache.calcite.sql.SqlOperator op, String opName)
org.apache.calcite.sql.type.SqlOperandTypeChecker.Consistency	getConsistency()
org.apache.calcite.sql.SqlOperandCountRange	getOperandCountRange()
boolean	isOptional(int i)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.calcite.sql.type.SqlOperandTypeChecker

isFixedParameters, typeInference

Constructor Detail

TypeInferenceOperandChecker

public TypeInferenceOperandChecker(DataTypeFactory dataTypeFactory,
                                   FunctionDefinition definition,
                                   TypeInference typeInference)

Method Detail

checkOperandTypes

public boolean checkOperandTypes(org.apache.calcite.sql.SqlCallBinding callBinding,
                                 boolean throwOnFailure)

Specified by:

checkOperandTypes in interface org.apache.calcite.sql.type.SqlOperandTypeChecker

getOperandCountRange

public org.apache.calcite.sql.SqlOperandCountRange getOperandCountRange()

Specified by:

getOperandCountRange in interface org.apache.calcite.sql.type.SqlOperandTypeChecker

getAllowedSignatures

public String getAllowedSignatures(org.apache.calcite.sql.SqlOperator op,
                                   String opName)

Specified by:

getAllowedSignatures in interface org.apache.calcite.sql.type.SqlOperandTypeChecker

getConsistency

public org.apache.calcite.sql.type.SqlOperandTypeChecker.Consistency getConsistency()

Specified by:

getConsistency in interface org.apache.calcite.sql.type.SqlOperandTypeChecker

isOptional

public boolean isOptional(int i)

Specified by:

isOptional in interface org.apache.calcite.sql.type.SqlOperandTypeChecker