Applet and Page flow communication

Hi
we have a design requirement where we need to have access to various peripherals
like cash drawer,point of sales printer etc form the client workstation. We are
usign workshop for development and we are looking into integrating an applet into
the pageflow(actually the pages created using page flows) and need to be able
to pass data into the applet at run time from the page (created usign page flow)
like commands to open the cash drawer, to start and end the printing .
Is it possible to pass data from the pages created using page flows into the applet
at run time? if so could someone share a small code snippet.
Thanks
Keith

Keith--
You can do this if you use the JSP to render data into the applet's
<param/> tags. For example, you can evaluate expressions that bind to
the JPF / action form / request / etc and render the output using the
<netui:content> tag.
In your JSP, this might look like:
<param
name="<netui:content value="{pageFlow.someName}"/>
value="<netui:content value="{pageFlow.someValue}"/>"
/>
If the value of {pageFlow.someName} is foo and the value of
{pageFlow.someValue} is bar, then this would write:
<param name="foo" value="bar"/>
If you have a data set to render in <param/> tags, you can certainly
nest something like the example above inside the <netui-data:repeater>
and use the "container.item" binding context.
Hope that helps...
Eddie
keith shacks wrote:
Hi
we have a design requirement where we need to have access to various peripherals
like cash drawer,point of sales printer etc form the client workstation. We are
usign workshop for development and we are looking into integrating an applet into
the pageflow(actually the pages created using page flows) and need to be able
to pass data into the applet at run time from the page (created usign page flow)
like commands to open the cash drawer, to start and end the printing .
Is it possible to pass data from the pages created using page flows into the applet
at run time? if so could someone share a small code snippet.
Thanks
Keith

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Kar,
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kar piyush wrote:
Eddie
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Message was edited by:
manu_moreno

Hi manu_moreno,
You should create an Event handler.
On the Property Editor, click on the "Event Handler" option.
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Here's a clarification of my problem:
I'm facing an issue when integrating the Jasig CAS SSO with Siebel Self-Service (which is an Oracle ADF application). When applying the CAS Authentication Filters, the navigation rules and page flows in the Self-Service application cease to work.
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IIS, Javascript, Signed Applet and ASP Blank Page Problem

Hi,
I'm having a problem using a Signed Applet in a site that runs in a IIS (Windows Server 2003).
My aspx web page uses the applet to read my smart card and get information from it.
This applet uses an auxiliar dll (stored in a second Signed Jar file) in order to read the information from my smart card.
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When this happens the server just responds with a blank page.
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The JVM doesn't fire.
The IIS log don't show errors.
The eventviewer doesn't show errors.
The problem is solved with an IIS reset or a Application Pool reset.
After a while the problem returns.
This problem occours for other user in another machine, the server just stops responding correcly to request regarding pages with applets, the other pages still continue to work.
If we disable Java Control Panel->Advanced->Java Plug-in->Enable the next-generation Java Plug-in the problem seend to stop, but we can't force all clients to disable this option right?
Or there is a way to force the Applet to run with this option disabled?
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Regards,
OF

This is all ok, until sometimes the server stop responding correcly for requests regarding this two pages with the Applet.
When this happens the server just responds with a blank page.
- with fiddler I can seer the request for the aspx page (that uses the applet)
- but server responds with a blank html pageWell, if http requests look identical in case of success and failure (pay attention to cookies, etc) then it has to be something on the server side.
It could be that server gets into this wrong state because of previous requests made by applet but it is hard to tell.
I am not clear how old/new plugin can make a difference unless your applets run in the legacy mode (i.e. you are actually trying to reuse SAME instance of the applet when
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I'd start with
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Socket communication failure between Java applet and C++ application

I have a java applet that connects to a C++ application via Java's ServerSocket and Socket objects. THe C++ application is using the Winsock 2 API. The applet and application are running on an NT workstation (SP 6) and using IE (5.5) For a very simple C++ test applications the communictions work fine. Once more code gets added to the C++ application the portion of the socket that C++ listens to seems to close. Upon performing a recv call the return value is a zero. Microsoft insists this is a sign the Java side has shut down the socket. The Java applet can still receive messages from the C++ app but C++ cannot receive responses from the Java side. Java throws no exceptions and an explicit check of the socket shows no errors. Again, what puzzles me is that it works for simple C++ applications. Are there any known conflicts between Java and C++ in this regard?
I have inlcuded the basic java code segments below.
/ run Method.
* This method is called by the Thread.start() method. This
* method is required for the implementation of the Runnable interface
* This method sets up the server side socket communication and
* contiuously loops looking for requests from a external
* socket.
* @author Chris Duke
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* @author Chris Duke
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a very simple C++ test applications the communictions work fine. Once more code gets added to the C++ application the portion of the socket that C++ listens to seems to close.
This quite strongly implicates the extra code in the C++ App. The firstly thing I would try would be telnet. Try connecting to both versions of the C++ Application and manually reproducing a proper exchange.
a recv call the return value is a zero. Microsoft insists this is a sign the Java side has shut down the socket.
A correct implementation of recv should return the number of bytes received, or -1 for an error. A zero return indicates no bytes received not a socket closed/error. This sounds like FUD to me.
Are there any known conflicts between Java and C++ in this regard?
I can see no obvious faults, though the code is incomplete, I don't think it's an sockets implementation issue, at either end, it sounds more likely to be a protocol/handshaking bug in the C++ App.

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Hi, I am working on weblogic portal 8.1.
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=========================
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=========================
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Murali.
============

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Never mind!!! I restarted Jdeveloper and now works!!!
Sorry

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http://dev2dev.bea.com/pub/a/2004/01/jones.html
i still didn't get what is really happening "behind the scenes" between Page Flows and Java Controls (Workshop 8.1). I would be glad if anyone could send to me more detailed documentation or explanation about this subject.
How can a Java Control to stand behind a Stateless Session Bean (GenericStatelessSLSB) and still to keep its internal state (instance variables) consistent ? How can a statefull Java Control to remain statefull being accessed by a stateless component (the EJB) ? Or is the source code of a Java Control (the JCS file) kept by the Page Flow and sent to EJB for its execution ?
Thanks in advance.

Hi Daniel
I have attached a doc I created that explains what happens behind the scenes
when a pageflow call a JCS va a JWS calling a JCS.
Can you please go through the document and let me know any questions you may
have?
Thanks
Vimala
<Daniel Lima> wrote in message news:[email protected]..
Hi everybody !
Even after to read some documents like
http://dev2dev.bea.com/pub/a/2004/06/wlw_internals.html
and
http://dev2dev.bea.com/pub/a/2004/01/jones.html
i still didn't get what is really happening "behind the scenes" between
Page Flows and Java Controls (Workshop 8.1). I would be glad if anyone
could send to me more detailed documentation or explanation about this
subject.
How can a Java Control to stand behind a Stateless Session Bean
(GenericStatelessSLSB) and still to keep its internal state (instance
variables) consistent ? How can a statefull Java Control to remain
statefull being accessed by a stateless component (the EJB) ? Or is the
source code of a Java Control (the JCS file) kept by the Page Flow and
sent to EJB for its execution ?
Thanks in advance.

Applet and Page flow communication

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