For some examples of components that are jsf 1.2 compliant you can look
at the bpcatalog's components. The source can be downloaded from the
ee5 version of the catalog located at
https://blueprints.dev.java.net/servlets/ProjectDocumentList?folderID=4144&expandFolder=4144&folderID=0.
Hope this helps - Mark
Michael Youngstrom wrote:
> Try looking at:
>
> http://java.sun.com/javaee/javaserverfaces/1.2_MR1/docs/api/javax/faces/application/Application.html#getExpressionFactory()
>
>
> http://java.sun.com/javaee/javaserverfaces/1.2_MR1/docs/api/javax/faces/application/Application.html#evaluateExpressionGet(javax.faces.context.FacesContext,%20java.lang.String,%20java.lang.Class)
>
>
> and then look here for info on how the ELExpressionFactory works:
>
> http://java.sun.com/javaee/5/docs/api/
>
> Mike
>
>
>
> On 1/17/07, Todd Patrick <Todd.Patrick_at_dtn.com> wrote:
>> 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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