The EJB Specification prohibits this behavior, and the weblogic.ejbc compiler checks for this behavior and prohibits any polymorphic type of response from a create() or find() method.
The reason the create() and find() methods are not polymorphic is similar to the reason constructors are not polymorphic in Java. The derived classes generally do not know or cannot initialize the base class properly.
How do I use a less than or greater than on a message selector in ejb-jar.xml?
A client wants to preserve the reference to the EJBHome object of an enterprise bean instance and use it later. Which of the following can be serialized for this purpose?
Match the EJB functions given below with the functionality equivalent in SQL?
How do I create a producer pool?
How many messages are sent across the network for processing topic messages?
How can an application do a JMS operation and have it succeed, independent of the result of the transaction?
Is it OK to add new sessions and subscribers to a Queue or Topic Connection once it has been started?
How do I handle request/response using JMS?
Is it possible to set aside a message and acknowledge it later?
Which of the following attributes in the Monitoring tab for a JDBC connection pool in the Administrative console tell us how many clients are currently waiting for a connection?
rendc.org
Whether it is technological solutions or user-oriented innovations, We have put together for you the best sources of HR Interview Questions and Answers, Tech Ideas, and Programming Tutorials."
Get all the latest information on rendc.org
© 2022 | All rights reserved.
RENDC
welcome to www.rendc.org
