org.apache.calcite.sql.type

Class SameOperandTypeExceptLastOperandChecker

java.lang.Object

org.apache.calcite.sql.type.SameOperandTypeChecker

org.apache.calcite.sql.type.SameOperandTypeExceptLastOperandChecker

All Implemented Interfaces:

SqlOperandTypeChecker, SqlSingleOperandTypeChecker

public class SameOperandTypeExceptLastOperandChecker
extends SameOperandTypeChecker

Parameter type-checking strategy where all operand types except last one must be the same.

Nested Class Summary

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

SqlOperandTypeChecker.Consistency

Field Summary

Fields

Modifier and Type	Field and Description
protected String	lastOperandTypeName

Fields inherited from class org.apache.calcite.sql.type.SameOperandTypeChecker

nOperands

Constructor Summary

Constructors

Constructor and Description
SameOperandTypeExceptLastOperandChecker(int nOperands, String lastOperandTypeName)

Method Summary

Modifier and Type	Method and Description
protected boolean	checkOperandTypesImpl(SqlOperatorBinding operatorBinding, boolean throwOnFailure, @Nullable SqlCallBinding callBinding)
String	getAllowedSignatures(SqlOperator op, String opName) Returns a string describing the allowed formal signatures of a call, e.g.

Methods inherited from class org.apache.calcite.sql.type.SameOperandTypeChecker

checkOperandTypes, checkOperandTypes, checkSingleOperandType, getConsistency, getOperandCountRange, getOperandList, getTypeName, isOptional

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

Field Detail

lastOperandTypeName

protected final String lastOperandTypeName

Constructor Detail

SameOperandTypeExceptLastOperandChecker

public SameOperandTypeExceptLastOperandChecker(int nOperands,
                                               String lastOperandTypeName)

Method Detail

checkOperandTypesImpl

protected boolean checkOperandTypesImpl(SqlOperatorBinding operatorBinding,
                                        boolean throwOnFailure,
                                        @Nullable SqlCallBinding callBinding)

Overrides:

checkOperandTypesImpl in class SameOperandTypeChecker

getAllowedSignatures

public String getAllowedSignatures(SqlOperator op,
                                   String opName)

Description copied from interface: SqlOperandTypeChecker

Returns a string describing the allowed formal signatures of a call, e.g. "SUBSTR(VARCHAR, INTEGER, INTEGER)".

Specified by:

getAllowedSignatures in interface SqlOperandTypeChecker

Overrides:

getAllowedSignatures in class SameOperandTypeChecker

Parameters:

op - the operator being checked

opName - name to use for the operator in case of aliasing

Returns:

generated string