SameOperandTypeExceptLastOperandChecker (Apache Calcite API)

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 Description

protected java.lang.String lastOperandTypeName
- Fields inherited from class org.apache.calcite.sql.type.SameOperandTypeChecker
  nOperands

Constructor Summary

Constructors
Constructor Description

SameOperandTypeExceptLastOperandChecker(int nOperands, java.lang.String lastOperandTypeName)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected boolean`	`checkOperandTypesImpl(SqlOperatorBinding operatorBinding, boolean throwOnFailure, SqlCallBinding callBinding)`
`java.lang.String`	`getAllowedSignatures(SqlOperator op, java.lang.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

- Field Detail
  - lastOperandTypeName
```
protected final java.lang.String lastOperandTypeName
```
- Constructor Detail
  - SameOperandTypeExceptLastOperandChecker
```
public SameOperandTypeExceptLastOperandChecker(int nOperands,
                                               java.lang.String lastOperandTypeName)
```
- Method Detail
  - checkOperandTypesImpl
```
protected boolean checkOperandTypesImpl(SqlOperatorBinding operatorBinding,
                                        boolean throwOnFailure,
                                        SqlCallBinding callBinding)
```
    Overrides:
    
    checkOperandTypesImpl in class SameOperandTypeChecker
  - getAllowedSignatures
```
public java.lang.String getAllowedSignatures(SqlOperator op,
                                             java.lang.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