Term
Explain the two models for Struts. |
|
Definition
Model 1: everything under one roof.
Model 2: MVC (Business logic elsewhere). |
|
|
Term
|
Definition
| Front web-based framework that follows a MVC design pattern. |
|
|
Term
Where is the Struts Servlet located? |
|
Definition
Trick question, it is ran internally. |
|
|
Term
|
Definition
Model: business logic (POJO, Action, ActionForm).
View: what the client sees (JSP & HTML).
Controller: the brain, action servlet. |
|
|
Term
What are the two types of servers? Explain each server. |
|
Definition
Web server: any server that exclusively deals with HTTP protocol.
Application server: can be used for both HTTP protocol and Enterprise applications. |
|
|
Term
|
Definition
| A java class with getters and setters. |
|
|
Term
| What 4 things does the Validator Framework consist of? |
|
Definition
1. Validator plug-in (in struts-config.xml).
2. validation.xml – maps rules to the fields.
3. validator-rules.xml – defines the rules.
4. messageResource.properties. |
|
|
Term
What are the different types of Struts Librarys?
(Hint: 6) |
|
Definition
| HTML, Bean, Logic, Tiles, Template, Nested. |
|
|
Term
There are two DynaForms, what are they? |
|
Definition
DynaActionForm and DynaValidatorForm. |
|
|
Term
What is the difference between DynaActionForm and DynaValidatorForm? |
|
Definition
DynaValidatorForm has a validate method in it. |
|
|
Term
| What are the attributes of the Action Mappings element? Define each attribute. |
|
Definition
name: redirects to a form-bean element.
path: contains the name of the request received (from html/jsp page).
type: contains the name of the Action class invoked.
scope: specifies the scope in which the Controller (ActionServlet) must look for the bean. |
|
|
Term
What are the attributes of the form-beans element? Define each attribute.
(Hint: 2) |
|
Definition
name: a unique bean name used as a reference in the action-mapping element.
type: a fully-qualified classname of the ActionForm class used with the form bean. |
|
|
Term
What are the attributes of the form-property element? Define each attribute.
(Hint: 2) |
|
Definition
name:contains the name of a property of the form bean.
type: contains the property type such as string. |
|
|
Term
| What do form-beans contain? |
|
Definition
| They contain form bean definitions, which creates an ActionForm instance at runtime. |
|
|
Term
| What does a action-mapping contain? What is the tag for each instance? |
|
Definition
| It contains the action definitions, with each action mapping defined in a action element. |
|
|
Term
What are the attributes of the forward element? Define each attribute.
(Hint: 2) |
|
Definition
name: contains the logical name of the forward.
path: contains the path of the resources to which the forward name maps. |
|
|
Term
| What does the forward element do? |
|
Definition
| It contains the global forward definition, which maps the logical name to a specific JSP. |
|
|
Term
| What kind of logic should be in the execute() method for Action class? |
|
Definition
| Preferable they should contain only presentation logic and be the starting point to invoke business logic. |
|
|
Term
| What does validation.xml do? |
|
Definition
| It maps rules to the fields. |
|
|
Term
| What does validator-rules.xml do? |
|
Definition
|
|
Term
| From JSP Page to the Action Class, what classes are called inbetween the two? |
|
Definition
| JSP > ActionServlet > RequestProcessor > struts-config > Action Class |
|
|
