| A tag interface that serves as the root of a family of types used in static
internationalization. Using GWT.create(class) to
instantiate a type that directly extends or implements
Localizable invites locale-sensitive type substitution.
Locale-sensitive Type Substitution
If a type Type directly extends or implements
Localizable (as opposed to
com.google.gwt.i18n.client.Constants or
com.google.gwt.i18n.client.Messages ) and the following code is used
to create an object from Type as follows:
Type localized = (Type)GWT.create(Type.class);
then localized will be assigned an instance of a localized
subclass, selected based on the value of the locale client
property. The choice of subclass is determined by the following naming
pattern:
If locale is... |
The substitute class for Type is... |
| unspecified |
Type itself, or Type_ if Type
is an interface |
x |
Class Type_x if it exists, otherwise treated as if
locale were unspecified |
x_Y |
Class Type_x_Y if it exists, otherwise treated as if
locale were x |
where in the table above x is a ISO language
code and Y is a two-letter ISO
country code.
Specifying Locale
The locale of a module is specified using the locale client
property, which can be specified using either a meta tag or as part of the
query string in the host page's URL. If both are specified, the query string
takes precedence.
To specify the locale client property using a meta tag in the
host HTML, use gwt:property as follows:
<meta name="gwt:property" content="locale=x_Y">
For example, the following host HTML page sets the locale to "ja_JP":
To specify the locale client property using a query string,
specify a value for the name locale. For example,
http://www.example.org/myapp.html?locale=fr_CA
For More Information
See the GWT Developer Guide for an introduction to internationalization.
See Also: com.google.gwt.i18n.client.Constants
See Also: com.google.gwt.i18n.client.ConstantsWithLookup
See Also: com.google.gwt.i18n.client.Messages
See Also: com.google.gwt.i18n.client.Dictionary |