j2eeCertificate(custom tag ) ques

[singh santosh]

hi,

 
"public class ForumTagHandler extends TagSupport
 {  private int totalTopics = 0; 
 public int doStartTag() throws JspException {       
   if (totalTopics > 40)        
     return EVAL_BODY_AGAIN;    
   else       
     return SKIP_BODY;  }
}
 
" 

Which of the following statements are true when the doStartTag() method is invoked? Consider that the start of the tag has been reached.

1. The body of the tag is evaluated again.
2. The body of the tag is skipped.
3. SKIP_BODY is not a valid return code.
4. EVAL_BODY_AGAIN is not a valid return code.
5. JspException is not handled in the doStartTag() method.

ans)4

shouldnt the ans be 2,4 ?

Please clarify...

regards
-santosh

[wise owen]

check this one.

[singh santosh]

hi owen,
thnaks for redirecting me to that link .
But it doesnt have enough clues to answer my doubt .Let me clarify why i think 2 should also be the answer

  "public class ForumTagHandler extends TagSupport {  private int totalTopics = 0;  public int doStartTag() throws JspException {          if (totalTopics > 40)             return EVAL_BODY_AGAIN;       else            return SKIP_BODY;  }} " 
   

in above code whent the control enters into the doStartTag() it checks for the totalTopics >40 which is false so the control goes to else block and the return would be SKIP_BODY.(This is how the 2 should also be in the answer).

Please clearify ....

regards
-santosh

[joko mujoko]

I think we have to look at Classic Tag life cycle. It will evaluate the body at least time, except your return value is SKIP PAGE.

Joko