JMS Support in Applet

Can JMS be used in Applets send and recieve messages from EJB ?.
I have read in JMS tutorial that
Applets, however, are not required to support the JMS APIhttp://java.sun.com/products/jms/tutorial/1_3-fcs/doc/overview.html#1027335

From what I know applets can indeed be JMS clients but it is not mandatory that they be supported. Its probably vendor specific so check out the JMS provider you intend to use (Looked at Sonic and BEA and both seem to support applets fine).
cheers,
mairt

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What JVM's should be supported by applets

Currently working on developing and testing an applet which will be released to customers in the corporate environment. What JVM versions, browser versions or OS's should be supported by applets being released now ?

JVM version depends on what you Java compiler you compiled your code against.
Browser versions can have different bugs.
Our product runs with IE 5.5, but on IE 6.0 when we log out we get a whitescreen. ( applet screen area is painted white and browser must be restarted )
Only a proper QA/test of each configuration will give you the answers.
regards,
Owen

JMS Support

Hello,
I have a few questions about JMS Support in OC4J 9.0.3. Does the JMS implementation support clustering (load balancing and failover)? Is HTTP tunneling supported for client access to JMS? Is using AQ preferred over using the built in JMS implementation?
Len Takeuchi
Salescentrix.com

Hi John,
Thank you for your reply. Your reply and pointer to other info is extremely helpful. I was afraid that the questions were so general that no one would answer them.
Regards,
Len
Hi Len,
In 9iAS v9.0.3, OJMS (AQ/JMS) is the J2EE 1.3 compatible JMS provider. See the Oracle Metalink posting for more information
on OC4J/JMS and OJMS at http://metalink.oracle.com/metalink/plsql/ml2_documents.showDocument?p_database_id=NOT&p_id=205305.1
Regarding JMS clustering, you need to look both at the JMS client and JMS provider. The JMS client, a servlet or MDB, is contained
within OC4J. The client then has all the high availabilty and load balancing features as does OC4J. I won't go into detail
here on those features since they're well documented on OTN and in the 9iAS documentation.
As for the JMS provider, which in OJMS's case is Oracle's Advanced Queuing, since AQ is in the 9iDB you have all the high availabity (RAC)
and load balancing available that you would normally get with 9iDB.
The closest thing to HTTP tunneling is the use of IDAP with OJMS. Take a look at the Advanced Queuing Developer's Guide for more
information on IDAP.
Hope this helps...
John

Fonts supported by applets

I know this is a very stupid question but What are the platform independent fonts supported by applets in almost every browser?
Thanx in advance

jre/lib/font.propeties

WLS JMS supports the clients developed by using non-java program languages,such as,c++,VB...

          WLS JMS supports the clients developed by using non-java program languages,such
          as,c++,VB?


The short answer is yes. This is a frequently asked question. I
          suggest searching this newsgroup in google using terms like "C++",
          "IIOP", ".NET", "JCOM".
          Note also that WL 8.1 (now out in beta) contains a thin java client
          (something like 0 or 300K without JMS, 700k with. The 0K client comes
          from leveraging WL's IIOP support.)
          Tom, BEA
          jerry8006 wrote:
          > WLS JMS supports the clients developed by using non-java program languages,such
          > as,c++,VB?

Will firefox supports Java applet in next planned releases?

Will firefox supports Java applet in next planned releases?

Do you have a problem with running Java applets?
Which Java version do you have installed?
*https://support.mozilla.org/kb/Using+the+Java+plugin+with+Firefox
*http://kb.mozillazine.org/Java
*http://www.oracle.com/technetwork/java/javase/downloads/index.html (Java Platform > Java SE 6 > Download JRE)
Your user agent indicates that you are still running the very old Firefox 4.0.1 version.<br />
*Mozilla/5.0 (Windows NT 6.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1
Any particular reason why you still use that old version and haven't updated during the last few years?
Please update Firefox to the latest version via "Help > About Firefox"<br />
The Firefox 4.0.1 version that you currently run is no longer supported with security updates.
*http://www.mozilla.org/security/known-vulnerabilities/

Does JMS support reliable messaging (store-and-forward) for app clients?

I need to write an enterprise application client (launched with Java web start or packaged with a tool like Sun's package-appclient) that can send messages reliably from Linux to Windows. JMS seems like the obvious solution, so I deployed an EAR file with an MDB and an application client on a Windows machine (running SJSAS 9). I was able to download the client jar file onto Linux and send JMS messages successfully. However, if the Windows machine is not available, the Linux client immediately throws exceptions and fails. Are there any JMS providers that provide a store-and-forward mechanism for enterprise clients, so that if the remote server is not available immediately, messages are delivered later? (Note that the client can't be a servlet or other server-managed component.)
I'd prefer an open-source solution, but this requirement has an extremely high priority for my customer, so I'll use a commercial product if necessary. And if there's something other than JMS that works, that would be fine. (In my case, the messages on the remote side ultimately go to a .NET service, so WS-ReliableMessaging would be ideal, but it looks WS-RM won't be integrated into .NET until Vista, and the current WS-RM implementation is a beta, etc., etc.)
Thanks,
Mike

You could use Apache ActiveMQ
http://incubator.apache.org/activemq/
which supports embedded brokers inside each JVM which can be networked together in a store-forward mechanism so that each application keeps working and store-forwarding messages.
http://incubator.apache.org/activemq/networks-of-brokers.html
or you can use failover transport to handle automatic reconnection...
http://incubator.apache.org/activemq/how-can-i-support-auto-reconnection.html
If you need to communicate with some .Net you can use the NMS - the .Net Messaging API which has a client for ActiveMQ as well...
http://incubator.apache.org/activemq/nms.html
James
http://logicblaze.com/
Open Source SOA

Does OC4J's built-in JMS support transactions?

I am using Oracle App Server 10.1.3.4 and OC4J 10.1.3.4, with the built-in OC4J JMS implementation. I have created a simple MDB that receives messages in the onMessage() method, and rolls back the transaction by throwing a runtime exception. (I have also tried rolling back the transaction by calling messageDrivenContext.setRollbackOnly().) In either case, the result is the same. The message is basically lost and never redelivered. If the transaction is rolled back, shouldn't the message be added back to the queue for redelivery? I have waited several minutes, and no redelivery ever occurs.
My code looks something like this:
@MessageDriven(activationConfig = {
          @ActivationConfigProperty(propertyName = "ConnectionFactoryJndiName",
                    propertyValue = "jms/QueueConnectionFactory"),
          @ActivationConfigProperty(propertyName = "DestinationName", propertyValue = "jms/MyQueue"),
          @ActivationConfigProperty(propertyName = "DestinationType", propertyValue = "javax.jms.Queue"),
          @ActivationConfigProperty(propertyName = "ReceiverThreads", propertyValue = "5")
@TransactionManagement(TransactionManagementType.CONTAINER)
@TransactionAttribute(TransactionAttributeType.REQUIRED)
public class BidOptimizeMDB implements MessageListener {
     public final void onMessage(final Message msg) {
          throw new EJBException();
In jms.xml:
<queue-connection-factory name="jms/QueueConnectionFactory" location="jms/QueueConnectionFactory" />
<queue name="MyQueue" location="jms/SEMBidQueue" persistence-file="MyQueue">

You "care if it is a global transaction" because you use the corresponding annotation .
@TransactionManagement(TransactionManagementType.CONTAINER)
@TransactionAttribute(TransactionAttributeType.REQUIRED)This makes OC4J start a global transaction. Your config uses a non-xa connection factory that does not obey the Transaction Manager and setRollbackOnly does not work for this reason.
There is another problem with your setup.
"For message-driven beans using the OEMS JMS (in-memory or file-based) message service provider, <Required> is supported only if you access this message service provider using the Oracle JMS Connector. For more information, see [Restrictions When Accessing a Message Service Provider Without a J2CA Resource Adapter|http://download.oracle.com/docs/cd/B32110_01/web.1013/b28221/undejdev010.htm#CCHFAAAH]" .
You need to use an instance of JMS Connector (predefined or your own) for proper transaction enlistment of OC4J JMS.
The built-in JMS connector mentioned by you publishes connection factories at the following locations:
OracleASjms/MyXAQCF
OracleASjms/MyQCF
OracleASjms/MyXATCF
OracleASjms/MyTCF
OracleASjms/MyXACF
OracleASjms/MyCF
For your case you need OracleASjms/MyXACF or OracleASjms/MyXACF . Do not bypass the JMS Connector by using the OC4J JMS connection factories such as jms/XAConnectionFactory directly when you intend to use transactions.
Hope this helps.
Gera

Does HTMLEditorKit's object support include support for applets?

Hello,
I have a Swing application containing a JEditorPane used to display some HTML pages. I would like to embed a Java applet in one of the pages, but have had no success getting it to load.
Is it possible to load an applet within an HTML document displayed by JEditorPane/HTMLEditorKit? From http://java.sun.com/j2se/1.5.0/docs/api/javax/swing/text/html/HTMLEditorKit.html:
"The <applet> tag is not supported, but some support is provided for the <object> tag."
What does "some support" mean exactly? (I'm using JDK 1.5)
The applet I've written loads successfully in Firefox using the following code:
<applet code=cprgraph.CPRGraphApplet width="557" height="319"></applet>as well as
<object codetype="application/java" classid="java:cprgraph/CPRGraphApplet.class" width=557 height=319>
</object>The applet is in the package cprgraph, and located in a directory cprgraph which is in my CLASSPATH.
If HTMLEditorKit can't load applets, is there an alternative that can? Or any other way to embed a JComponent in an HTML document displayed by a Java application?
Thanks,
Ben

Use Java SE 6.0 beta or wait untill it is released in Fall 2006

MP3 support for applets

Dear gurus of the forum,
I am a computer science student planning to create a website and considering the use of applets on it. On my previous website I used [Sound Manager 2|http://www.schillmania.com/projects/soundmanager2/] to play MP3 sounds. SM2 is a tiny flash program and has been a breeze to use. However, if I am to build decent applets, I'd prefer to somehow use MP3 support in Java, so users won't be required to have both Java and Flash installed.
I am a very basic Java programmer, but I know enough to get me started. However, thus far I have only been able to discover that Java supports .au sounds and more recently .wav and .aiff (which doesn't ring a bell). I have also found some MP3 player applets. However, the various old and new resources confuse me greatly on this subject.
My question is rather simple:
Is there any lightweight option to add basic support to play MP3 files in an applet? I do not need a player with buttons and whatnot, just classes with methods to use in my applet.
I can only hope someone here may be able to help me out here or send me in the right direction.
Thanks in advance,
Dysprosium

Hi Andrew,
no wonder you have 5,7?? posts.... you're just posting all day ha.... I wonder how many of those posts were actually useful,
anyways, I think that your place is somewhere in English Grammar forums or so 'cause that's all you know about...
There is no mention of that on the linked page. Can you produce a link that supports that statement?instead of wandering around, just do something really simple like googling android java platform, and RTFM from there on...
No. You think that.yes, I think, and as you can see in this reply I have some more thoughts about you !
.. then WHY DOESN'T ORACLE DO ANYTHING ABOUT IT ????? 1) There is no need to SHOUT at us.
2) One '?' denotes a question, whereas 2 or more typically denotes a bozo.
yes well, I've already said that you're great at gammar issues, way to go.
>
So maybe it is because Sun ignores shouting bozos. More likely it is because Sun staff do not trawl the forums looking for problems. That is what the [Bug Database|http://bugs.sun.com/] is for.
that's the first (and last) valuable information I got from you, you could have just replied with these two lines, or even make it shorter and just redirect me to the link, save electronic space, you're wasting it as if it was yours.
AFAIU neither Flash nor Java will be supported on iPad, so there is a new source of worry for you.who talks about iPad, dude, start getting into shape with your reading comprehension, though your grammar level is great ! Oh, and You need to start worrying my friend, you might know Java but start working on your English skills quickly...
I'm talking about Google's Android, Apple's Iphone, Windows Mobile and Nokia's Symbian.
oh, and don't bother increasing you post number by replying to this one with some more useless info.
thanks a lot

Does Sun plan to get around microsofts discontinuing support for Applets?

Or are we all going to have to find some other language?

I've thinking about it these days. And an idea came to me. Well, microsoft decides to disable applets in IE by default. This means that many users who don't know how to reenable applets (and don' even know that the technical term "applet" exists) will lose access to some content they have used before.
What if an user saw the following title instead of the applet (s)he used to see before: "DID YOU LOSE ACCESS TO YOUR FAVORITE WEB APP AFTER UBGRADING TO WIN XP ?", followed by links to some explanations what has happenned, and maybe some VBS, that reenables applets (I have never polluted my mind with VBS, but I'm pretty sure one could change the settings of IE using it, and IT WILL DEFINITELY BE ENABLED by default) ?
The explanations should be written by public relations-experts, not programmers, and should not come too deep into technical stuff (although there could be links to technical explanations).
SO, MY IDEA IS:
- Using the JCP we should develop a small site that explains to the users what has happenned and what should be done in order to recover. One could also put there links to Java Plugin, JRE, Java Web Start, HotJava, etc ...
- We should get as many applet developers as possible to put a link to our site in their web pages - when applets are disabled, a frame with our site should be opened instead. This could be done using an automated search of geocities, yahoo and the like and posting emails ...
There are many people who would be hurt by this microsoft action, so I think many people would support us if we ask.
I have many other ideas too, but I want to hear other opinions too.
And I hope that SUN will give us their backing. Any SUN people around ? Tell me what you think !

Warning: Internet Explorer now removes support for applet and embed

I think this message should be here:
http://forum.java.sun.com/thread.jsp?forum=30&thread=370869&tstart=0&trange=15
- bjorn

<OBJECT classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93" width="168" height="605" align="baseline" codebase="http://java.sun.com/getjava/">
<PARAM NAME="code" VALUE="com.my.package.appletName">
<PARAM NAME="type" VALUE="application/x-java-applet">
<PARAM NAME="scriptable" VALUE="true">
<script language='JavaScript'>document.location.href='MOD_install_java_message.html?setEvent=&programTitle=the%20Crop-Tool';</script>

</OBJECT>

Does Firefox support java applets if the "Next generation plugin" is disabled via the Java plugin control panel.

I'm still trying to get a definitive answer to this question.
My applet is not "Next Generation compliant". When we run our applet in Internet Explorer it runs fine as long as we disable the "Next Generation Plugin" via the Java plugin control panel. However our applet does not run in Firefox if the "next generation applet" is disabled.
Is it a requirement that if I want to run an applet in Firefox 3.6.x or higher that the "next generation plugin" be enabled via the Java plugin control panel.

Current Firefox versions (3.6 and later) can only run Java applets via the Next Generation plugin.
*http://java.com/en/download/help/new_plugin.xml

Installing jms support in Oracle Workflow 2.6.2

Hello everybody,
We are doing a pilot to a client that is looking for a workflow engine. We want to offer him Oracle Workflow 2.6.2.
The client ask us to do a pilot where he can send event using java through JMS. I have found in OTN a document about this, named wfjmswp.pdf, and some files to create two new queue and the agent in the workflow environment that handle this queue.
There are three files ended in .pls and four ended in .sql. The first ones, the .pls file, I don't know how I must loaded into the database, they seem to be pl/sql package. The .sql I have tried to execute but they don't work. I must say that I have little experience like oracle administrator.
¿Can anybody help us please? It's an important client and a big opportunity to sell him oracle products.
Thank you very much in advance.

Hello,
I finally get the scripts to run, I finally use sqlplus but I change the scripts without the 2 last line (commit and exit) and I do this directly in the sqlplus.

Dose Java MIDP 2.0 Supports the Applet Tickers ?

Hello Everyone !
Am using Nokia 9500 which has Java MIDP 2.0, I have problem opening some stock related sites Like www.nseindia.com www.bseindia.com, the site opens very fine but the problem is the site by showing news and/or stock market quotes in a scrolling ticker dosent open on it !
Am too confuse
Please Somebody Help me !
Pranav Shah

last line of the table here :
http://developer.sprint.com/view_devices.do?device=79541
check for JSR 999 with 999 a number.
The search box on top-right of this page is your true friend, and the public Knowledge Base too:

JMS Support in Applet

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