org.datanucleus.store.types.converters

Class LocaleStringConverter

java.lang.Object

org.datanucleus.store.types.converters.LocaleStringConverter

All Implemented Interfaces:

Serializable, ColumnLengthDefiningTypeConverter, TypeConverter<Locale,String>

public class LocaleStringConverter
extends Object
implements TypeConverter<Locale,String>, ColumnLengthDefiningTypeConverter

Class to handle the conversion between java.util.Locale and a String form. Locale should be stored in colums from 2 to 20 characters. Normaly, we will have a string no longer than 5 characters, but variants, in general, are vendor specific and can be longer than expected. The Variant codes are vendor and browser-specific. For example, use WIN for Windows, MAC for Macintosh, and POSIX for POSIX. Where there are two variants, separate them with an underscore, and put the most important one first. For example, a Traditional Spanish collation might construct a locale with parameters for language, country and variant as: "es", "ES", "Traditional_WIN". language_country_variant Examples: "en", "de_DE", "_GB", "en_US_WIN", "de__POSIX", "fr_MAC"

See Also:

Locale, Serialized Form

Constructor Summary

Constructors

Constructor and Description
LocaleStringConverter()

Method Summary

Modifier and Type	Method and Description
int	getDefaultColumnLength(int columnPosition) Accessor for the default column length to use for the datastore column at the specified position.
String	toDatastoreType(Locale loc) Method to convert the passed member value to the datastore type.
Locale	toMemberType(String str) Method to convert the passed datastore value to the member type.

Methods inherited from class java.lang.Object

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

Constructor Detail

LocaleStringConverter

public LocaleStringConverter()

Method Detail

toMemberType

public Locale toMemberType(String str)

Description copied from interface: TypeConverter

Method to convert the passed datastore value to the member type.

Specified by:

toMemberType in interface TypeConverter<Locale,String>

Parameters:

str - Value from the datastore

Returns:

Value for the member

toDatastoreType

public String toDatastoreType(Locale loc)

Description copied from interface: TypeConverter

Method to convert the passed member value to the datastore type.

Specified by:

toDatastoreType in interface TypeConverter<Locale,String>

Parameters:

loc - Value from the member

Returns:

Value for the datastore

getDefaultColumnLength

public int getDefaultColumnLength(int columnPosition)

Description copied from interface: ColumnLengthDefiningTypeConverter

Accessor for the default column length to use for the datastore column at the specified position.

Specified by:

getDefaultColumnLength in interface ColumnLengthDefiningTypeConverter

Parameters:

columnPosition - Position of the column being enquired about (0 = first)

Returns:

The column length (-1 if no preference)