org.apache.calcite.rel.type

Class RelDataTypeSystemImpl

java.lang.Object

org.apache.calcite.rel.type.RelDataTypeSystemImpl

All Implemented Interfaces:

RelDataTypeSystem

public abstract class RelDataTypeSystemImpl
extends Object
implements RelDataTypeSystem

Default implementation of RelDataTypeSystem, providing parameters from the SQL standard.

To implement other type systems, create a derived class and override values as needed.

Parameter values

Parameter	Value
MAX_NUMERIC_SCALE	19

Field Summary

Fields inherited from interface org.apache.calcite.rel.type.RelDataTypeSystem

DEFAULT

Constructor Summary

Constructors

Constructor and Description
RelDataTypeSystemImpl()

Method Summary

Methods

Modifier and Type	Method and Description
int	getDefaultPrecision(SqlTypeName typeName) Returns default precision for this type if supported, otherwise -1 if precision is either unsupported or must be specified explicitly.
int	getMaxNumericPrecision() Returns the maximum precision of a NUMERIC or DECIMAL type.
int	getMaxNumericScale() Returns the maximum scale of a NUMERIC or DECIMAL type.
int	getMaxPrecision(SqlTypeName typeName) Returns the maximum precision (or length) allowed for this type, or -1 if precision/length are not applicable for this type.
int	getMaxScale(SqlTypeName typeName) Returns the maximum scale of a given type.

Methods inherited from class java.lang.Object

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

Constructor Detail

RelDataTypeSystemImpl

public RelDataTypeSystemImpl()

Method Detail

getMaxScale

public int getMaxScale(SqlTypeName typeName)

Description copied from interface: RelDataTypeSystem

Returns the maximum scale of a given type.

Specified by:

getMaxScale in interface RelDataTypeSystem

getDefaultPrecision

public int getDefaultPrecision(SqlTypeName typeName)

Description copied from interface: RelDataTypeSystem

Returns default precision for this type if supported, otherwise -1 if precision is either unsupported or must be specified explicitly.

Specified by:

getDefaultPrecision in interface RelDataTypeSystem

Returns:

Default precision

getMaxPrecision

public int getMaxPrecision(SqlTypeName typeName)

Description copied from interface: RelDataTypeSystem

Returns the maximum precision (or length) allowed for this type, or -1 if precision/length are not applicable for this type.

Specified by:

getMaxPrecision in interface RelDataTypeSystem

Returns:

Maximum allowed precision

getMaxNumericScale

public int getMaxNumericScale()

Description copied from interface: RelDataTypeSystem

Returns the maximum scale of a NUMERIC or DECIMAL type.

Specified by:

getMaxNumericScale in interface RelDataTypeSystem

getMaxNumericPrecision

public int getMaxNumericPrecision()

Description copied from interface: RelDataTypeSystem

Returns the maximum precision of a NUMERIC or DECIMAL type.

Specified by:

getMaxNumericPrecision in interface RelDataTypeSystem