To support portability of your application, potentially using the RMI-IIOP protocol for communication with your EJB, you should always use the PortableRemoteObject.narrow() method instead of a direct cast operation when you look up an object using JNDI. By default, OC4J tries to prevent writing unchanged attributes to the database. To force an update to occur, even if no changes have occurred, use the force-update tag in orion-ejb-jar.xml as shown below and redeploy your application.

If you are seeing error similar to the one listed below, you are probably not starting OC4J properly. With Oracle9iAS, Release 2, you need to start the standalone version of OC4J from the command line as java -jar oc4j.jar and not as Java -jar orion.jar. Auto-deploying IS-OS-OSCoreTmp.jar (No previous deployment found)... MeasurementReceiver_StatelessSessionBeanWrapper0.java:2: Class com.evermind.server.ApplicationServer not found in import. In the orion-ejb-jar. See similar questions...

Yes, TopLink Essentials through the pluggable persistence capabilities will function as the persistence provider in an compliant EJB 3.0 container. See similar questions...

Yes, TopLink Essentials offers support for deployment within an EJB 3.0 container or outside the container. This includes using the persistence API in Web Containers, other non-EJB 3.0 Java EE containers, or in Java SE. This allows the persistence API to be used anywhere Java is used. See similar questions...

PLT Scheme's MysterX and MzCOM packages provide a bi-directional interface with COM, i.e. they respectively allow Scheme to invoke methods on COM/ActiveX objects and COM objects to call into Scheme. There is rumored to be a Guile mapping for Xerox Parc's ILU (http://www.parc.com/istl/projects/ILU/) that could be used to interface with CORBA, but it appears that the ILU project is now defunct. See similar questions...

Yes, see deployment instructions in the docs. Additional you can find some EJB example beans in package org.apache.ojb.ejb under [jakarta-ojb]/src/ejb. See similar questions...

There is an example on OTN that demonstrates how to call one EJB from another EJB. This example is one session bean calling another session bean but the principles apply globally. In your META-INF directory, add the EJB reference in the application-client.xml file that specifies the EJB you want to refer to. In release 1.0.2.2 we support pessimistic locking and an implicit read-only mode (only changed fields are written. See similar questions...

Take a quick trip to the How To Buy section of this Web site for all the details. If you still have questions, please feel free to Contact Us. See similar questions...

Ans: Life cycle management is a service that one must take from application server for the EJB components. That's why the programmer will never define any method related to life cycle management of the EJBs. But then he/she has to declare those methods and let the ejb container implement the same. Home interface is used for declaring such methods. Ex: crate, find, remove etc. The reason that we need to declare these methods is to specify the list of input and output parameters. See similar questions...

I have a requirement to convert date format.my requirement is as followsi hav date column in my source.my source data in date columnv_date10-11-200619-aug-199925-dec-05null11-5-05like thismy requireme Asked by: suneetharoy Latest Answer: $ - These are the system variables like $Bad file,$input file, $output file, $DB connection$$ - user... See similar questions...

You will firstly need to import javax.annotation.PostConstruct before you can use the annotation. Then annotate a method with @PostConstruct @Pos... See similar questions...

You will firstly need to import javax.annotation.PreDestroy before you can use the annotation. Then annotate a method with @PreDestroy @PreDestroy public... See similar questions...

You will firstly need to import javax.ejb.PostActivate before you can use the annotation. Then annotate a method with @PostActivate @PostActivate public... See similar questions...

You will firstly need to import javax.ejb.PrePassivate before you can use the annotation. Then annotate a method with @PrePassivate @PrePassivate public... See similar questions...

Yes, however your Web services will interoperate only with Web services running on the Microsoft .NET Framework and with Mainsoft-based Web services. This is because DataSets do not comply to the WS-I basic profile rules. See similar questions...

Yes, in most cases; however, a technician will make that determination at installation. It is a requirement for Macintosh systems. See similar questions...

Users must register to the service by logging on to the authentication service and filling in the requested information, including a user-id. The user must also agree with the terms and conditions of the User Agreement and the Appendices. After registration, the user will receive a password via e-mail to use the service. See similar questions...

The statistics interface allows you to monitor the activity of your site by providing you with the following information: the total number of email accounts, the number of new accounts opened, the amount of traffic your site produces, and more. Knowing your userbase is an invaluable asset for all businesses. For example, you can learn about the locations of your users, gender splits, age groups, etc.. See similar questions...

Definitely - It is very easy to use. It does not require users to have high-level technical ability or any knowledge of web programming languages such as HTML. Uploading and exchanging work is as simple as choosing files from your desktop and selecting where you wish to send or display them. See similar questions...