Hi.
Localized Enums can be a hassle.
Here is my solution:
in your configured messagebundle add your enum.
#messages.properties
example.enums.VisibleStatus.VISIBLE=visible
example.enums.VisibleStatus.HIDDEN=hidden
package example.enums;
public enum VisibleStatus {
VISIBLE,
HIDDEN;
}
package example.converter;
@SuppressWarnings("unchecked")
public class EnumConverter implements Converter {
private Class type = Enum.class;
public final static String CONVERTER_ID = "example.EnumConverter";
/**
*
* @param facesContext The facescontext
* @param uiComponent The uiComponent
* @param value The colon separeted string to be mapped to the Enum
class
* @return a enum
* @throws ConverterException
*/
public Object getAsObject(FacesContext facesContext, UIComponent
uiComponent, String value) throws ConverterException {
if (value == null) return null;
String bundle = facesContext.getApplication().getMessageBundle();
Locale loc = facesContext.getViewRoot().getLocale();
ResourceBundle rb = ResourceBundle.getBundle(bundle, loc);
Enumeration<String> keys = rb.getKeys();
Enum e = null;
while (keys.hasMoreElements()) {
String elem = keys.nextElement();
String val = rb.getString(elem);
if (val.equals(value)) {
int pos = elem.lastIndexOf(".");
if (pos != -1) {
String clazzName = elem.substring(0, pos);
String sval = elem.substring(pos + 1);
Class clazz = Enum.class;
try {
clazz = Class.forName(clazzName);
} catch (ClassNotFoundException ex) {
//ignore
}
e = Enum.valueOf(clazz, sval);
if (e != null) break;
}
}
}
return e;
}
/**
*
* @param facesContext The facesContext
* @param uiComponent The uiComponent
* @param value The enum to be mapped to a string
* @return enum as stringrepresentation
* @throws ConverterException
*/
public String getAsString(FacesContext facesContext, UIComponent
uiComponent, Object value) throws ConverterException {
if (value == null || !type.isInstance(value)) return null;
Enum en = (Enum) value;
Class c = en.getDeclaringClass();
String mb = facesContext.getApplication().getMessageBundle();
Locale locale = facesContext.getViewRoot().getLocale();
ResourceBundle rb = ResourceBundle.getBundle(mb, locale);
String out = c.getName() + "." + en.name();
return rb.getString(out);
}
}
There might be a more efficient solution, however i have found that this
works quite well.
Regards.
Erlend
Simon Lessard wrote:
Hello,
Also note that, starting with JSF 1.2, enums are natively supported
(a default Enum converter is registered).
Regards,
~ Simon
On 8/7/07, * Andrew Robinson* <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
If you use jboss seam, they also have select item and select items
components as well as converter support for enumerations
-Andre
On 8/7/07, Gerald Müllan <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
> Hi,
>
> i am doing it always via using tomahawks t:selectItems:
>
> <t:selectOneMenu value="#{bean.type}">
> <t:selectItems var="enum" value="#{
otherBean.enumValues}"
> itemLabel="#{enum.name
<http://enum.name>}"
> itemValue="#{enum.type}"/>
> </t:selectOneMenu>
>
> and the otherBean:
>
> public List getEnumValues()
> {
> return Arrays.asList(EnumClass.values());
> }
>
> Hope this helps,
>
> cheers - Gerald
>
> On 8/7/07, Wolf Benz <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
> > I just discover there is a class called java.lang.EnumSet.
> > Sandeep - have you tried that already?
> > -Wolf
> >
> > On 8/7/07, sandeep gururaj <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
> > >
> > > Well, I haven't been lucky! If it is possible, do let me
know so that I
> > > can re-factor my code.
> > >
> > > ~Sandeep
> > >
> > > -----Original Message-----
> > > From: Wolf Benz [mailto: [EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>]
> > > Sent: Tuesday, August 07, 2007 5:40 PM
> > > To: MyFaces Discussion
> > > Subject: SelectOneMenu & Enums in "items" var possible?
> > >
> > > Hi List,
> > >
> > > Does anyone know whether you can load an Enum into a
SelectOneMenu's
> > > items variable?
> > > So smth like:
> > > <h:selectOneMenu value="#{ jsfBean.beanVar.varOfEnumType}">
> > > <f:selectItem itemLabel="#{labels.choose_one}"
> > > itemValue="choose_one"/>
> > > <f:selectItems value="#{ jsfBean.model.EnumClass}" />
> > > </h:selectOneMenu>
> > >
> > > -Wolf
> > >
> >
>
>
> --
> http://www.irian.at <http://www.irian.at>
>
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