org.eclipse.emf.oda.ecore.impl
Class DataTypes

java.lang.Object
  org.eclipse.emf.oda.ecore.impl.DataTypes

public final class DataTypes
extends java.lang.Object

Defines the data types that are supported by EMF ODA runtime driver.

Field Summary

static int	noNulls
static int	nullable
static int	nullableUnknown

Constructor Summary

DataTypes()

Method Summary

static int	getDisplayLength(EClassifier type) Returns the display length of the specified type.
static int	getPrecision(EClassifier type) Returns the maximum number of decimal digits of the specified type.
static int	getScale(EClassifier type) Returns the maximum number of digits to the right of the decimal point of the specified type.
static int	getType(EClassifier type) Returns the data provider specific code of the specified type.
static java.lang.String	getTypeName(EClassifier type) Returns the data provider specific name of the specified type.
static int	isNullable(EClassifier type) Returns whether null values are allowed for the specified type.

Methods inherited from class java.lang.Object

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

Field Detail

nullableUnknown

public static final int nullableUnknown

See Also:

Constant Field Values

noNulls

public static final int noNulls

See Also:

Constant Field Values

nullable

public static final int nullable

See Also:

Constant Field Values

Constructor Detail

DataTypes

public DataTypes()

Method Detail

getDisplayLength

public static int getDisplayLength(EClassifier type)

Returns the display length of the specified type.

Parameters:

type - the type

Returns:

the column display length, or -1 if unknown

See Also:

IResultSetMetaData.getColumnDisplayLength(int)

isNullable

public static int isNullable(EClassifier type)

Returns whether null values are allowed for the specified type.

Parameters:

type - the type

Returns:

the nullability of the type

See Also:

IParameterMetaData.isNullable(int), IResultSetMetaData.isNullable(int)

getPrecision

public static int getPrecision(EClassifier type)

Returns the maximum number of decimal digits of the specified type.

Parameters:

type - the type

Returns:

the type precision, or -1 if not applicable

See Also:

IParameterMetaData.getPrecision(int), IResultSetMetaData.getPrecision(int)

getScale

public static int getScale(EClassifier type)

Returns the maximum number of digits to the right of the decimal point of the specified type.

Parameters:

type - the type

Returns:

the type scale, or -1 if not applicable

See Also:

IParameterMetaData.getScale(int), IResultSetMetaData.getScale(int)

getType

public static int getType(EClassifier type)
                   throws org.eclipse.datatools.connectivity.oda.OdaException

Returns the data provider specific code of the specified type.

Parameters:

type - the type

Returns:

the native data type code of the type

Throws:

org.eclipse.datatools.connectivity.oda.OdaException - if data source error occurs

See Also:

IParameterMetaData.getParameterType(int), IResultSetMetaData.getColumnType(int)

getTypeName

public static java.lang.String getTypeName(EClassifier type)
                                    throws org.eclipse.datatools.connectivity.oda.OdaException

Returns the data provider specific name of the specified type.

Parameters:

type - the type

Returns:

the native data type name of the type

Throws:

org.eclipse.datatools.connectivity.oda.OdaException - if data source error occurs

See Also:

IParameterMetaData.getParameterTypeName(int), IResultSetMetaData.getColumnTypeName(int)