The following typographical conventions are used in this book:
Used for filenames and pathnames, hostnames, domain names, URLs, and email addresses. Italic is also used for new terms where they are defined.
Constant width
Used for code examples and fragments, XML elements and tags, and SQL
commands, table names, and column names. Constant
width
is also used for class, variable, and method
names and for Java keywords used within the text.
Constant width bold
Used for emphasis in some code examples.
Constant width italic
Used to indicate text that is replaceable. For example, in
BeanName
PK
, you would
replace BeanName
with a specific bean
name.
An Enterprise JavaBean consists of many parts; it’s not a
single object, but a collection of objects and interfaces. To refer
to an enterprise bean as a whole, we use its business name in Roman
type, followed by the acronym EJB. For example, we will refer to the
Customer EJB when we want to talk about the enterprise bean in
general. If we put the name in a constant-width font, we are
referring explicitly to the bean’s remote interface; thus,
CustomerRemote
is the remote interface that
defines the business methods of the Customer EJB.