EJBs are thought of as encapsulate business (application) logic, can be remoted, secured, transacted etc. MBeans on the other hand are thought of as Managed services. An example EJB would be a payroll system, and an example MBean would be an embedded database (or mail server).
JBoss is a little different that the standard view of EJBs and MBeans, because everything in JBoss is an MBean. It is just how we manage the server. To us an EJB is just a container MBean with certain predefined behaviors like security. -dain Sacha Labourey wrote: > Hello Edward, > > They have nothing in common. enterprise java beans are part of the EJB spec > and are enterprise components running in an application server whereas > MBeans are Managed Beans that are part of the JMX spec. An MBean represent a > resource that can be managed in a standard way. See the JMX spec for more > information. > > So, from a pure spec point of view, they have nothing in common. > > But from a JBoss point of view, MBeans are the standard piece of construct > of any JBoss service. Consequently, in JBoss (and in JBoss only), any EJB > *container* is an MBean. > > For more information: > - read the EJB spec or any related book > - read the JMX spec or Juha's book (Sam's Publishing) > - read JBoss 3.0 administration guide: JBoss' architecture is detailed > > Good luck. Cheers, > > > > Sacha > > > -----Message d'origine----- > De : [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]De la part de ed banfa > Envoye : dimanche, 25 aout 2002 20:30 > A : [EMAIL PROTECTED] > Objet : [JBoss-user] Enterprise Beans and MBeans > > > Hi all, > This is my first(but definately not the last) posting to this list, and yes > its a dumb newbie question. Can any one tell me the difference between an > Enterprise(Session and Entity Beans) and an MBean. Yeah I know its got > something to do with JMX, BUT WHERE does it all fit in (the MBeans). I just > learnt about coding session and entity beans, and then WHAM from nowhere > comes MBEANS and some thing called an MBean server . Please can anyone help > a lil brother out. > Hey I appreciate the help. > Thanks > Edward > > > ------------------------------------------------------- This sf.net email is sponsored by: OSDN - Tired of that same old cell phone? Get a new here for FREE! https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390 _______________________________________________ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
