Answer Posted / shrikant kale

ApplicationContoller/RequestProcessor will create & use the
only instance of each Action class [hence: Singleton in
nature] .

Also the Action class has to handle the multiple request
(most of time simultaniously.) so it cant be Thread-Safe.


Hence we must not declare class instance variable in Action
class.If declared so then Action class state becomes non-
thread safe.

What is apache struts used for?

973

---

How do you convert struts to springs?

1090

---

Are the struts tags xhtml compliant ?

979

---

What is the purpose of @element annotation annotation?

1138

---

What is the purpose of interceptors?

1050

---

What does modeldriven interceptor?

1142

---

Give the details of xml files used in validator framework?

1059

---

Explain architecture of struts2?

1154

---

What is the purpose of @validations annotation?

1091

---

What is the purpose of struts.xml in struct2?

1177

---

What are the 5 constants of action interface?

1060

---

Describe the two types of formbeans.

1040

---

How to override the default error message that can come during file uploading process?

1105

---

What is the purpose of constant tag in struts.xml?

996

---

Why do we need mapdispatchtoprops?

911

---