org.apache.calcite.sql.type

Class ComparableOperandTypeChecker

java.lang.Object

org.apache.calcite.sql.type.SameOperandTypeChecker

org.apache.calcite.sql.type.ComparableOperandTypeChecker

All Implemented Interfaces:

SqlOperandTypeChecker, SqlSingleOperandTypeChecker

public class ComparableOperandTypeChecker
extends SameOperandTypeChecker

Type checking strategy which verifies that types have the required attributes to be used as arguments to comparison operators.

Nested Class Summary

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

SqlOperandTypeChecker.Consistency

Field Summary

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

nOperands

Constructor Summary

Constructors

Constructor and Description
ComparableOperandTypeChecker(int nOperands, RelDataTypeComparability requiredComparability) Deprecated.
ComparableOperandTypeChecker(int nOperands, RelDataTypeComparability requiredComparability, SqlOperandTypeChecker.Consistency consistency)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	checkOperandTypes(SqlCallBinding callBinding, boolean throwOnFailure) Checks the types of all operands to an operator call.
boolean	checkOperandTypes(SqlOperatorBinding callBinding) Similar functionality to checkOperandTypes(SqlCallBinding, boolean), but not part of the interface, and cannot throw an error.
String	getAllowedSignatures(SqlOperator op, String opName) Returns a string describing the allowed formal signatures of a call, e.g.
SqlOperandTypeChecker.Consistency	getConsistency() Returns the strategy for making the arguments have consistency types.

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

checkSingleOperandType, getOperandCountRange, getOperandList

Methods inherited from class java.lang.Object

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

Constructor Detail

ComparableOperandTypeChecker

@Deprecated
public ComparableOperandTypeChecker(int nOperands,
                                       RelDataTypeComparability requiredComparability)

Deprecated.

ComparableOperandTypeChecker

public ComparableOperandTypeChecker(int nOperands,
                            RelDataTypeComparability requiredComparability,
                            SqlOperandTypeChecker.Consistency consistency)

Method Detail

checkOperandTypes

public boolean checkOperandTypes(SqlCallBinding callBinding,
                        boolean throwOnFailure)

Description copied from interface: SqlOperandTypeChecker

Checks the types of all operands to an operator call.

Specified by:

checkOperandTypes in interface SqlOperandTypeChecker

Overrides:

checkOperandTypes in class SameOperandTypeChecker

Parameters:

callBinding - description of the call to be checked

throwOnFailure - whether to throw an exception if check fails (otherwise returns false in that case)

Returns:

whether check succeeded

checkOperandTypes

public boolean checkOperandTypes(SqlOperatorBinding callBinding)

Similar functionality to checkOperandTypes(SqlCallBinding, boolean), but not part of the interface, and cannot throw an error.

Overrides:

checkOperandTypes 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

getConsistency

public SqlOperandTypeChecker.Consistency getConsistency()

Description copied from interface: SqlOperandTypeChecker

Returns the strategy for making the arguments have consistency types.

Specified by:

getConsistency in interface SqlOperandTypeChecker

Overrides:

getConsistency in class SameOperandTypeChecker