Adding and removing CMP fields Container-managed persistence
(CMP) fields, or attributes, define the variables in the bean class
for which the container must handle persistence management. You can
use the Java™ EE tools to add
a CMP field with the EJB deployment descriptor editor.
Key classes and key fields A key class is used when creating
or finding an entity bean. It represents the identity of the entity
bean, corresponding to the primary-key columns of a row in a relational
database. Each designated container-managed field in the entity bean
that corresponds to one of these columns is called a key field.
Defining environment variables Environment variables are constant
variables that you can define in EJB modules. You can add an environment
variable to an enterprise bean
Deleting enterprise beans You can delete enterprise beans,
bean classes, access beans, and deployment code. In some cases, you
can delete only the access beans or deployment code that are associated
with enterprise beans.