Package 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

Modifier and Type	Field	Description
private SqlOperandTypeChecker.Consistency	consistency
private RelDataTypeComparability	requiredComparability

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

nOperands

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	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.
private boolean	checkType(SqlCallBinding callBinding, boolean throwOnFailure, RelDataType type)
SqlOperandTypeChecker.Consistency	getConsistency()	Returns the strategy for making the arguments have consistency types.
protected java.lang.String	getTypeName()	Override to change the behavior of SameOperandTypeChecker.getAllowedSignatures(SqlOperator, String).

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

checkOperandTypesImpl, checkSingleOperandType, getAllowedSignatures, getOperandCountRange, getOperandList, isOptional

Methods inherited from class java.lang.Object

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

Field Detail

requiredComparability

private final RelDataTypeComparability requiredComparability

consistency

private final SqlOperandTypeChecker.Consistency consistency

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

checkType

private boolean checkType(SqlCallBinding callBinding,
                          boolean throwOnFailure,
                          RelDataType type)

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

getTypeName

protected java.lang.String getTypeName()

Description copied from class: SameOperandTypeChecker

Override to change the behavior of SameOperandTypeChecker.getAllowedSignatures(SqlOperator, String).

Overrides:

getTypeName in class SameOperandTypeChecker

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