Craig Berry

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since Aug 02, 2001
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Recent posts by Craig Berry

Hi guys,
I'm developing a book at Wrox Press for the SCEA exam and I'm looking for a few people to help review the material pre-publication. I'm looking for a mixture of people who have already sat the exam and those studying for it.
The book will only be released next year, so we're at the very early stages. If you plan to sit the exam any time soon, this won't be an opportunity for a freebie revision guide.
If you are interested then please mail me at craigb@wrox.com
Thanks
Craig Berry
Commissioning Editor
Wrox Press
Hi everyone,
I'm developing a book for Wrox Press with IBM on developing J2EE applications with the new release of WebSphere application server due out later this year. I'm looking for a couple of people to review the material prior to publication.
By review I mean, you will be required to read through the chapters and comment on their accuracy, relevance and usefulness. These comments will be fedback to the authors for them to make appropriate adjustments as required.
I need people with the following:
* Familiarity with J2EE 1.3
* Familiarity with at least WAS4
* Sufficient time over the next couple of months to be able to turn around a chapter in 2-3 days
* Access to MS Word
* A strong grasp of English - although we won't ask you to check for spelling and grammer, we will ask for you to point out if anything is confusingly written.
If you are interested and meet the above requirements then mail me at craigb@wrox.com
Thanks
Craig Berry
Commissioning Editor
Wrox Press
17 years ago
Hi there, I'm an editor at Wrox Press where I'm developing a book for the SCWCD exam. I'm looking for some people to help out with reviewing the pre-publication material to make sure we are meeting your needs as candidates. I'm looking for those who have completed or nearly completed the process and those just starting.
Please contact me at craigb@wrox.com
Cheer
I think it's all a big scam. There's not really 4 of you, just the two in the picture, and your some obscure folk act.
18 years ago
In that case "Show me the money" would be appropriate
18 years ago
You don't specify which server you are running as it can make a difference. For example, WebLogic will start the database process for you (but you need to create the tables yourself using Cloudview or similiar). The Reference Implementation however requires you to run a seperate process for the database (see cloudscape.bat in the bin directory), but it will create the tables for you.
I don't believe BEA have an EJB Deployed for WLS 6.x yet.
The javax.ejb.* classes are found in the weblogic.jar file.

Which JVM are you executing the client in? I believe you need to use the IBM JVM that ships with WAS in order to access EJBs in WAS.
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Craig Berry
Author of Professional EJB
Based on the name, it sounds like the data is simply written out to a file rather than another storage medium such as a database.
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Craig Berry
Author of Professional EJB
How a BMP handles it is really up to you because you are the one coding the persistence mechanism. Setting the transaction setting on the bean correctly can help to overcome problems like dirty reads, phantom reads etc.
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Craig Berry
Author of Professional EJB
I agree that the specification could be far more restrictive to allow for much easier portability, however, I'm not so sure that you will see true portability for a while as the server vendors try to implement their own value-added functionality.
At this point, let me throw a question out. I've seen a number of questions this week about portability of EJBs, but how important an issue is this really? I don't work in a production-quality environment so I can say, but to me, if your going to fork out a significant some of money to buy WebLogic for example, then you're not likely to be porting your beans around a whole lot. Do you guys want to develop on one type of server and deploy the finished beans to a different one? Is it just basic Java-interoperability pride that leads you to want portability?
I'm just curious has to how significant a problem this lack of portability really is?
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Craig Berry
Author of Professional EJB
Sounds to me like your PATH environment isn't set correctly. Why don't you just try running j2ee.bar from within the %J2EE_HOME%\bin directory that way you are guaranteed to run it.
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Craig Berry
Author of Professional EJB
Check what else you have running on your system, if like me you have lot's of different app servers installed sometime they can use each other's resources. For example, the RI uses the Tomcat engine so if you have Tomcat running that might be a problem.
Alternatively, I have seen similar errors for no good reason but usually a reboot fixes that.
Finally, you can always change the port the server runs under in the config files.
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Craig Berry
Author of Professional EJB
I've seen the following quote going around
"In the year of the new century and nine months,
From the sky will come a great King of Terror...
The sky will burn at forty-five degrees.
Fire approaches the great new city..."
but ...it's not an accurate quote, it's a composite of several.
"Century 10, Quatrain 72
In the year 1999 and seven months
The Great King of Terror will come from the sky,
He will bring back to life the great king of the Mongols.
Before and after Mars [the God of war] reigns happily."
and...
"Century 6, Quatrain 97
The sky will burn at forty-five degrees latitude,
Fire approaches the great new city
Immediately a huge, scattered flame leaps up
When they want to have verification from the Normans "
So you can't take too much stock in it
18 years ago