New Specs Up for Review (JSP 2.0, EJB 2.1)

by Dion Almaer


It has been an interesting week in the J2EE space.
We have seen public draft's for some of the most popular standards, EJB 2.1, and JSP 2.0. What is new?






EJB 2.1:



Here we see the addition of:


  • The timer interface (cron meets EJB)
  • More linkage to Web Services (easily allowing web service clients to the EJBs)
  • Generalization of MDBs (not just JMS you know!)
  • EJB-QL is enhanced (finally: ORDER BY, but are these additions enough?)



Spec: http://java.sun.com/products/ejb/docs.html


Chat: http://www.theserverside.com/home/thread.jsp?thread_id=14053






JSP 2.0:


Suddenly JSP jumped from 1.2 -> 2.0 (previously known as 1.3).
Some of the big changes are:



  • The inclusion of the EL (shared with JSR 52)
  • The new JSP Fragments (more formal JSP componentization)
  • The new .tag idea, allowing custom tags to be defined
    using a JSP interface, not the Java interface
    Tags can be placed in WEB-INF/tags, allowing us to bypass
    the URI declaration
  • <include-prelude> allows you to include JSPs at the beginning of a set of JSPs (by url-pattern)
  • <include-coda> allows you to include JSPs at the end of a set of JSPs



Spec: http://jcp.org/aboutJava/communityprocess/review/jsr152/index.html


Chat: http://www.theserverside.com/home/thread.jsp?thread_id=14091


JSTL Jakarta Release: http://jakarta.apache.org/builds/jakarta-taglibs/releases/standard



Lots of new stuff to learn. again. :)



Do these new specs give you what you want? Should they have more, or less scope?