org.apache.calcite.sql.type

Class SqlTypeExplicitPrecedenceList

java.lang.Object

org.apache.calcite.sql.type.SqlTypeExplicitPrecedenceList

All Implemented Interfaces:

RelDataTypePrecedenceList

public class SqlTypeExplicitPrecedenceList
extends Object
implements RelDataTypePrecedenceList

SqlTypeExplicitPrecedenceList implements the RelDataTypePrecedenceList interface via an explicit list of SqlTypeName entries.

Constructor Summary

Constructors

Constructor and Description
SqlTypeExplicitPrecedenceList(List<SqlTypeName> typeNames)

Method Summary

Methods

Modifier and Type	Method and Description
int	compareTypePrecedence(RelDataType type1, RelDataType type2) Compares the precedence of two types.
boolean	containsType(RelDataType type) Determines whether a type appears in this precedence list.

Methods inherited from class java.lang.Object

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

Constructor Detail

SqlTypeExplicitPrecedenceList

public SqlTypeExplicitPrecedenceList(List<SqlTypeName> typeNames)

Method Detail

containsType

public boolean containsType(RelDataType type)

Description copied from interface: RelDataTypePrecedenceList

Determines whether a type appears in this precedence list.

Specified by:

containsType in interface RelDataTypePrecedenceList

Parameters:

type - type to check

Returns:

true iff this list contains type

compareTypePrecedence

public int compareTypePrecedence(RelDataType type1,
                        RelDataType type2)

Description copied from interface: RelDataTypePrecedenceList

Compares the precedence of two types.

The list must contain both types.

Specified by:

compareTypePrecedence in interface RelDataTypePrecedenceList

Parameters:

type1 - first type to compare

type2 - second type to compare

Returns:

positive if type1 has higher precedence; negative if type2 has higher precedence; 0 if types have equal precedence