What I am trying to do is the following:
In my login method, I create a visit object and set the visit's user
property with a User object.
Inside the try statement, what I had before was:
facesContext.getApplication().createValueBinding("#{" +
Constants.VISIT_KEY_SCOPE + Constants.VISIT_KEY +
"}").setValue(facesContext, visit);
This create an expression with the value of the visit object with it's
User object property set.
I think I am close with:
facesContext.getApplication().getExpressionFactory().createValueExpressi
on(elcontext, "#{" + Constants.VISIT_KEY_SCOPE + Constants.VISIT_KEY +
"}", Visit.class);
But, I still can't get the expression set to the visit object.
Currently, I am reading about ELResolver...
Thanks again,
--Todd
public String login() {
FacesContext facesContext = getFacesContext();
Authenticate auth = new Authenticate();
auth.setPassword(this.password);
if (auth.authenticateUser(this.username)) {
User newUser = new User(this.username);
Visit visit = new Visit();
visit.setUser(newUser);
visit.setAuthenticationBean(this);
setVisit(visit);
try {
//facesContext.getApplication().createValueBinding("#{"
+ Constants.VISIT_KEY_SCOPE + Constants.VISIT_KEY +
"}").setValue(facesContext, visit);
ELContext elcontext = facesContext.getELContext();
facesContext.getApplication().getExpressionFactory().createValueExpressi
on(elcontext, "#{" + Constants.VISIT_KEY_SCOPE + Constants.VISIT_KEY +
"}", Visit.class);
HttpServletResponse resp = (HttpServletResponse)
facesContext.getExternalContext().getResponse();
HttpServletRequest req = (HttpServletRequest)
facesContext.getExternalContext().getRequest();
resp.sendRedirect(req.getContextPath() +
Constants.BASE_URL);
} catch (IOException e) {
logger.warn("Authenticate: Unable to redirect user.",
e);
} catch (ELException e) {
logger.warn("Unable to bind a value.", e);
}
} else {
this.logout();
}
return SUCCESS_OUTCOME;
}
-----Original Message-----
From: Jason Lee [mailto:lee_at_iecokc.com]
Sent: Wednesday, January 17, 2007 2:47 PM
To: users_at_javaserverfaces.dev.java.net
Subject: RE: I am stumped on how to move from
Application.createValueBinding to
ExpressionFactory.createValueExpression
Are you trying to register a variable that components can then
reference, like the var attribute on a dataTable? If so, try this:
ELContext ec = FacesContext.getCurrentInstance().getELContext();
ELResolver er = ec.getELResolver();
er.setValue(ec, null, "foo", valueOfFoo);
-----
Jason Lee, SCJP
Programmer/Analyst
http://www.iec-okc.com
> -----Original Message-----
> From: Todd Patrick [mailto:Todd.Patrick_at_dtn.com]
> Sent: Wednesday, January 17, 2007 2:40 PM
> To: users_at_javaserverfaces.dev.java.net
> Subject: I am stumped on how to move from
> Application.createValueBinding to
> ExpressionFactory.createValueExpression
>
> I am looking at two APIs:
>
> http://java.sun.com/javaee/javaserverfaces/1.2/docs/api/index.
> html?javax
> /faces/application/Application.html
>
> http://java.sun.com/javaee/5/docs/api/
>
>
> Looking at the documentation I need to go from:
>
> Visit visit = new Visit();
> facesContext.getApplication().createValueBinding("#{" +
> Constants.VISIT_KEY_SCOPE + Constants.VISIT_KEY +
> "}").setValue(facesContext, visit);
>
>
> To the JSF 1.2 requirement:
>
> ELContext elcontext = facesContext.getELContext();
> facesContext.getApplication().getExpressionFactory().createMet
> hodExpress
> ion(elcontext, "#{" + Constants.VISIT_KEY_SCOPE + Constants.VISIT_KEY
> + "}", String.class, new Class<?>[0]);
>
>
> The createMethodExpression method has be stumped at the moment.
>
> How do I get my visit object into the value of the expression (second
> parameter in createMethodExpression)?
>
> Thanks,
>
> --Todd
>
>
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