Package com.google.gwt.i18n.shared

Interface GwtLocale

All Superinterfaces:

Comparable<GwtLocale>

All Known Implementing Classes:

GwtLocaleImpl

public interface GwtLocale
extends Comparable<GwtLocale>

Class representing GWT locales and conversion to/from other formats. These locales correspond to BCP47.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DEFAULT_LOCALE

Method Summary

Modifier and Type	Method	Description
int	compareTo(GwtLocale o)	The default comparison is a lexical ordering.
List<GwtLocale>	getAliases()	Returns the list of aliases for this locale.
String	getAsString()	Returns the locale as a fixed-format string suitable for use in searching for localized resources.
GwtLocale	getCanonicalForm()	Returns this locale in canonical form.
List<GwtLocale>	getCompleteSearchList()	Returns the complete list of locales to search for the current locale.
List<GwtLocale>	getInheritanceChain()	Returns a list of locales to search for, in order of preference.
String	getLanguage()	Returns the language portion of the locale, or null if none.
String	getLanguageNotNull()	Returns the language portion of the locale, or the empty string if none.
String	getRegion()	Returns the region portion of the locale, or null if none.
String	getRegionNotNull()	Returns the region portion of the locale, or the empty string if none.
String	getScript()	Returns the script portion of the locale, or null if none.
String	getScriptNotNull()	Returns the script portion of the locale, or the empty string if none.
String	getVariant()	Returns the variant portion of the locale, or null if none.
String	getVariantNotNull()	Returns the variant portion of the locale, or the empty string if none.
boolean	inheritsFrom(GwtLocale parent)	Returns true if this locale inherits from the specified locale.
boolean	isDefault()	Returns true if this is the default or root locale.
String	toString()	Returns a human readable string -- "default" or the same as getAsString().
boolean	usesSameScript(GwtLocale other)	Checks if this locale uses the same script as another locale.

Field Details

DEFAULT_LOCALE

static final String DEFAULT_LOCALE

See Also:

• Constant Field Values

Method Details

compareTo

int compareTo(GwtLocale o)

The default comparison is a lexical ordering.

Specified by:

compareTo in interface Comparable<GwtLocale>

getAliases

List<GwtLocale> getAliases()

Returns the list of aliases for this locale. The canonical form of the current locale is always first on the list. Language/region codes have changed over time, so some systems continue to use the older codes. Aliases allow GWT to use the official Unicode CLDR locales while still interoperating with such systems.

Returns:

alias list

getAsString

String getAsString()

Returns the locale as a fixed-format string suitable for use in searching for localized resources. The format is language_Script_REGION_VARIANT, where language is a 2-8 letter code (possibly with 3-letter extensions), script is a 4-letter code with an initial capital letter, region is a 2-character country code or a 3-digit region code, and variant is a 5-8 character (may be 4 if the first character is numeric) code. If a component is missing, its preceding _ is also omitted. If this is the default locale, the empty string will be returned.

Returns:

String representing locale

getCanonicalForm

GwtLocale getCanonicalForm()

Returns this locale in canonical form.

• Deprecated language/region tags are replaced with official versions
• Default scripts are removed (including region-specific defaults for Chinese)
• no/nb/nn are normalized
• Default region for zh_Hans and zh_Hant if none specified

Returns:

GwtLocale instance

getCompleteSearchList

List<GwtLocale> getCompleteSearchList()

Returns the complete list of locales to search for the current locale. This list will always start with the canonical form of this locale, and end with "default", and include all appropriate aliases along the way.

Returns:

search list

getInheritanceChain

List<GwtLocale> getInheritanceChain()

Returns a list of locales to search for, in order of preference. The current locale is always first on the list. Aliases are not included in the list -- use getAliases() to expand those.

Returns:

inheritance list

getLanguage

String getLanguage()

Returns the language portion of the locale, or null if none.

getLanguageNotNull

String getLanguageNotNull()

Returns the language portion of the locale, or the empty string if none.

getRegion

String getRegion()

Returns the region portion of the locale, or null if none.

getRegionNotNull

String getRegionNotNull()

Returns the region portion of the locale, or the empty string if none.

getScript

String getScript()

Returns the script portion of the locale, or null if none.

getScriptNotNull

String getScriptNotNull()

Returns the script portion of the locale, or the empty string if none.

getVariant

String getVariant()

Returns the variant portion of the locale, or null if none.

getVariantNotNull

String getVariantNotNull()

Returns the variant portion of the locale, or the empty string if none.

inheritsFrom

boolean inheritsFrom(GwtLocale parent)

Returns true if this locale inherits from the specified locale. Note that locale.inheritsFrom(locale) is false -- if you want that to be true, you should just use locale.getInheritanceChain().contains(x).

Parameters:

parent - locale to test against

Returns:

true if parent is an ancestor of this locale

isDefault

boolean isDefault()

Returns true if this is the default or root locale.

toString

String toString()

Returns a human readable string -- "default" or the same as getAsString().

Overrides:

toString in class Object

usesSameScript

boolean usesSameScript(GwtLocale other)

Checks if this locale uses the same script as another locale.

Parameters:

other -

Returns:

true if the scripts are the same