Hi,
I was able to solve your problem using 2 steps:
1)change swapLocale(), added one line
public void swapLocale(ActionEvent event) {
System.out.println("[swapLocale] Setting isEnglish to " + !isEnglish);
isEnglish = !isEnglish;
FacesContext.getCurrentInstance().getViewRoot().setLocale(isEnglish?ENGLISH:SPANISH);
}
2)use <resource-bundle> in faces-config.xml instead of <f:loadBundle> as
<application>
<resource-bundle>
<base-name>messages</base-name>
<var>msgs</var>
</resource-bundle>
</application>
It seems <resource-bundle> is required for changing locales.
the solution even works if you remove f:view completely, or it works even if you keep the <f:loadbundle> tag in the page. however <resource-bundle> is required.
========
getLocale() is called in first phase i.e RESTORE_VIEW. It happens seemingly due to this part mentioned in JSF 2.0 specs
2.2.1 Restore View
■ Examine the FacesContext instance for the current request. If it already contains a UIViewRoot:
■ Set the locale on this UIViewRoot to the value returned by the getRequestLocale() method on the ExternalContext for this request.
========
Better remove the <f:view> tag completely. it is not mandatory in JSF 2.0. As such the locale change happens due to FacesContext.getCurrentInstance().getViewRoot().setLocale() method. If you remove it, you will see getLocale() called after swapLocale() in RENDER_RESPONSE phase.
========
To check in which phase my System.out.println() statements where executed i added a PhaseListener as:
package coreservlets;
import javax.faces.event.PhaseEvent;
import javax.faces.event.PhaseId;
import javax.faces.event.PhaseListener;
public class LifeCycleListener implements PhaseListener {
public PhaseId getPhaseId() {
return PhaseId.ANY_PHASE;
}
public void beforePhase(PhaseEvent event) {
System.out.println("START PHASE " + event.getPhaseId());
}
public void afterPhase(PhaseEvent event) {
System.out.println("END PHASE " + event.getPhaseId());
}
}
and registered it in faces-config:
<lifecycle>
<phase-listener>coreservlets.LifeCycleListener</phase-listener>
</lifecycle>
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