• Post Reply
  • Bookmark Topic Watch Topic
  • New Topic

Question in Mikalai Zaikin's SCBCD Guide

 
Brenda Kwok
Ranch Hand
Posts: 38
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Do you know what does the statement in http://java.boot.by/bcd-guide/ch01s03.html mean?


"The enterprise bean must not attempt to define a class in a package."
(The second last)

Thanks.

Brenda
 
Mikalai Zaikin
Ranch Hand
Posts: 3371
12
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Originally posted by Brenda Kwok:
Do you know what does the statement in http://java.boot.by/bcd-guide/ch01s03.html mean?


"The enterprise bean must not attempt to define a class in a package."
(The second last)

Thanks.

Brenda


Hi Brenda!

This is a restriction to use the method of ClassLoader :

, int, int)]http://java.sun.com/j2se/1.4.2/docs/api/java/lang/ClassLoader.html#defineClass(java.lang.String, byte[], int, int)

which is consistent with other restrictions about using a class loader in your EJBs. The EJB Container is responsible for maintaining runtime environment, and it loads classes itself, applying security restrictions. If you violate these rules, the runtime environment will not be compliant.

This restriction is not about prohibiting to use packages for your EJB classes.

regards,
MZ
 
Brenda Kwok
Ranch Hand
Posts: 38
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Thank you!

It does not mean defining general Java class.
 
Mikalai Zaikin
Ranch Hand
Posts: 3371
12
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
You're right - this is only a restriction for developer to use ClassLoader from EJB.

regards,
MZ
 
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic