J2EE Interview questions and answers

141. What is JavaServer Faces Technology 

A framework for building server-side user interfaces
for Web applications written in the Java programming
language. 

142. What is JavaServer Faces conversion model 

A mechanism for converting between string-based markup
generated by JavaServer Faces UI components and
server-side Java objects. 


143. What is JavaServer Faces event and listener model


A mechanism for determining how events emitted by
JavaServer Faces UI components are handled. This model
is based on the JavaBeans component event and listener
model. 

144. What is JavaServer Faces _expression language 

A simple _expression language used by a JavaServer
Faces UI component tag attributes to bind the
associated component to a bean property or to bind the
associated component's value to a method or an
external data source, such as a bean property. Unlike
JSP EL expressions, JavaServer Faces EL expressions
are evaluated by the JavaServer Faces implementation
rather than by the Web container. 


145. What is JavaServer Faces navigation model 

A mechanism for defining the sequence in which pages
in a JavaServer Faces application are displayed. 

147. What is JavaServer Faces UI component 

A user interface control that outputs data to a client
or allows a user to input data to a JavaServer Faces
application. 




148. What is JavaServer Faces UI component class 

A JavaServer Faces class that defines the behavior and
properties of a JavaServer Faces UI component. 

149. What is JavaServer Faces validation model 

A mechanism for validating the data a user inputs to a
JavaServer Faces UI component. 

150. What is JavaServer Pages (JSP) 

An extensible Web technology that uses static data,
JSP elements, and server-side Java objects to generate
dynamic content for a client. Typically the static
data is HTML or XML elements, and in many cases the
client is a Web browser.