Stateless Session Beans

Some basic notes I made while reading about stateless session beans

• session beans contain logic for business processes
• session beans do not represent data
• session beans are not shared between different client sessions
• stateless session beans do not survive jvm or machine crashes
• session beans are non-persistent objects
• Stateless session bean ... single request conversation
• Do not expect a stateless session bean to retain any conversational state from call to call (the exact implementation is container specific). However, a stateless bean may contain state in the form of db connection obejcts, etc. Just be prepared to lose them and have them re-initialized at the container's whim and fancy.
• Stateless session beans can also provide a web services interface to clients (since EJB 2.1)
• I was having a hard time understanding the need for Local and Remote interfaces for EJB's... here is an answer http://stackoverflow.com/questions/7621907/what-is-the-purpose-of-home-remote-interfaces-ejb-3-1