Hi all. I have JBoss 3.2.5 and MySQL 4.0 my entity bean has an auto generated field. I know how to create an auto generated field in MySQL but how to make this in JBoss ? I mean, which of JBoss specific deployment files this attribute should occure ? what is its syntax ?? another question : this entity bean has a method called : getProcudtID( ) should I declare a cmp-field element in ejb-jar.xml file like this : <cmp-field><filed-name>productID</field-name></cmp-field> thanks.