JavaServer Faces notes

JSF EL
- also in java source, not only in JSP page:

FacesContext fc = FacesContext.getCurrentInstance();
UIViewRoot vr = fc.getViewRoot();
UIOutput vysl = (UIOutput) vr.findComponent("f:vysledek");
ValueBinding b = fc.getApplication().createValueBinding("#{scitackaHandler.vysledek}");
vysl.setValue(vb.getValue(fc));

- scope not supported

x.y <=> x['y'] 

(expr1)[expr2]
   |
first
  |
Map.get(value2)
List.get(value2)
value1[value2]

- unary operator

- ternary operator
${x?y:z}

- adding a property to object's attributes
instead of ${sessionScope.userName} we can use just ${userName}

JSF EL

requestScope, sessionScope, applicationScope -> Map that containts attributes of objects of page context.

param, header - Map that contains information about param, header.]

param - map of all parameters

paramValues - map of all values of parameter

initParam - list of inicialization parameters of application

facesContext - context of application



Lifecycle of JSF

- RestoreView

- Apply request values

- Process validations

- Update model values

- Invoke application

- Render response


Restore View

- 




Apply request values

- data from submittedValue

- component's attribute immediate=true (Cancel button) (overrides validation)

- button overpasses validation phase of the form

- convertors

Invoke application

- invokes bussiness logic

- implicit default listener

- phase listener


Validator

-