File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
http://aspose.com/file-tools
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic

Classic Tag Handlers - Are they thread safe?

 
Subbaiah Annamalai
Greenhorn
Posts: 9
  • 0
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi All,

Are Classic Tag Handlers thread safe? HFSJ mentions [pg 837 second edition] that they are thread safe. Is it right? Because container may re-use the classic tag handler instances if there are multiple occurrences of the tag with same attribute values in same page or different jsp pages. In that case, same instance variables may get updated by multiple threads at the same time.

Is HFSJ incorrect? can anyone clarify this?

thanks
Subbaiah
 
Musab Al-Rawi
Ranch Hand
Posts: 231
  • 0
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi,

Each instance will handle a tag occurrence. It is like wen you have two String instances or two Book instances each instance will have its own data members.
so there are no thread issues here.
 
Bobby Sharma
Ranch Hand
Posts: 598
3
Google App Engine jQuery Windows
  • 0
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Originally posted by Musab Al-Rawi:

so there are no thread issues here.


True,there is no headache of thread with tags


best regards,
omi
[ May 21, 2008: Message edited by: omi sharma ]
 
It is sorta covered in the JavaRanch Style Guide.
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic