Problems deploying a simple Infobus Applet

Question

Hi,
I am testing the infrastructure required to build an Infobus
Applet for our Web-based application using the Business Component
Framework in JDeveloper 3.0.
I have created a simple project based on the Scott schema, which
uses the Java Business Object framework to define Entity Objects,
Views, etc. for the Dept and Emp tables.
I have then created, using the Wizard, an Infobus Data Form to
create a master-detail Applet to display Employees within a
Department based on the above mentioned View Object. This works
fine when running within JDeveloper3.
However, when I try to deploy the applet to our Oracle
Application Server as a simple HTML file and JAR file (not using
EJB, etc. as we currently only have OAS 4.0.7.1 - waiting for OAS
4.0.8 to be available for download), the applet fails to start.
I have installed the Java Plug-in 1.2.2 from Sun as documented as
I'm using Swing controls.
After much frustration with the online 'Help', I managed to
create a deployment profile which included the appropriate
archives (See Packaging Source and Deployment Files in Help -
still refers to 'Rules' and 'Sources' pages ala JDeveloper 2 NOT
3.0).
Using the Console feature of the Java Plug-in, I was able to see
the progress of the Applets classes being loaded. It gets to the
point where it's trying to load the ResTable classes in
dacf.zip as found in the path:
oracle\dacf\control\swing\find
At this point, it just stops and nothing else happens.
Do I need to explicitly localize my Infobus Applet because I'm in
the United Kingdom and my PC has that as it's Regional Setting?
That is, do I need to define a ResTable_en_GB version of this
class?
Also, in attempting to create a localized version, I had errors
with JDeveloper stating that the text for the FIND_HELP_MESSAGE
exceeds the limit of JDeveloper (meaning that it's too long and I
needed to replace it with a shorter string). Could this be the
problem in the first place?
I have not been able to get the Applet to get beyond this point,
although I'm still trying the localization to Great Britain.
I know this is already a LONG email, but here is an extract from
the Java Console after which nothing else happens:
CacheHandler file name: null
Opening
http://dell_server.wsp.co.uk:4005/oracle/dacf/control/swing/find/
ResTable_en.properties no proxy
Opening
http://dell_server.wsp.co.uk:4005/oracle/dacf/control/swing/find/
ResTable_en.properties with cookie
"SITESERVER=ID=8e93834f82ef0710b78e5a4b087d6eed".
Regards
Gene Schneider
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Answer 1

Parameter passing in EJB must implement Serializable. One way to solve this is:
1. Define a new class which implements
Serializable.
2. Place whatever you want to pass inside
this class.
3. Now use the new class as your parameter.
eg.
public class Params implements java.io.Serializable {
String p1;
XmlDocmuent xdoc;,
etc, etc
Your program now have to use the class Params for parameter passing.
Hope this helps.
Tam
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