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发帖数: 1135 | 1 The Enterprise JavaBeans specification is intended to support compliance
with the range of CORBA standards, current and proposed.
A Bean's remote and home interfaces are RMI compliant, and thus
can interact with CORBA objects via RMI/IIOP, Sun and IBM's
forthcoming adaptation of RMI that conforms with the
CORBA-standard IIOP protocol.
As a companion to the Enterprise JavaBeans specification, Sun
Microsystems has defined a standard mapping from Enterprise Java
Beans API to CORBA IDL.
JTA, the tra | w**********k
发帖数: 1135 | 2 The two technologies are complementary: Enterprise JavaBeans defines a
standard for portable business logic and XML technology defines a standard
for portable data. | w**********k
发帖数: 1135 | 3 An entity bean can implement data persistence in one of two ways:
bean-managed or container-managed. In the case of bean-managed
persistence, the implementor of an entity bean stores and retrieves the
information managed by the bean by means of direct database calls. For
these, the bean can use either JDBC or JSQL. The one tradeoff of this
approach is that it makes it harder to adapt bean managed persistence to
alternate data sources.
In the case of container-managed persistence, the container p |
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