FacesContext and ADF

FacesContext.java

// FacesContext 
FacesContext facesCtx = FacesContext.getCurrentInstance(); 
 
// find UIComponent
UIComponent input = facesCtx.getViewRoot().findComponent("f1");
 
// change the locale  
facesCtx.getViewRoot().setLocale( Locale.ENGLISH);  
 
// el expression
Application app = facesCtx.getApplication();  
ExpressionFactory elFactory = app.getExpressionFactory();  
ELContext elContext = facesCtx.getELContext();  
 
ValueExpression valueExp = elFactory.createValueExpression(elContext,
                                                           "#{xxxx}",
                                                           Object.class); 
Object result = valueExp.getValue(elContext);
 
// add a message
FacesMessage msg = new FacesMessage(FacesMessage.SEVERITY_WARN,
                                    "header",
                                    "detail");  
facesCtx.addMessage(input.getClientId(facesCtx), msg); 
 
// ExternalContext
ExternalContext ectx = facesCtx.getExternalContext();