Any way to detect when a NotificationListeners MBean is removed?

If I have an MBeanServerConnection through which I register a NotificationListener, is there any way to detect when either the MBean that the NL is registered for is removed or destroyed?
Specifically, I fire up a process, register an MBean.
A client connects to the process, and registers a NotificationListener.
Finally, I destroy the original process. How can I be notified that this has happened in my NotificationListener Client?
Is there something else I can use to monitor the JMX connection?

It sounds as if you are looking for a notification when an MBean is unregistered. To get that, you need to register a listener on the MBean Server Delegate. See MBeanServerDelegate and MBeanServerNotification.
Regards,
Éamonn McManus -- JMX Spec Lead -- [http://weblogs.java.net/blog/emcmanus]

Similar Messages

Is there a way to detect when Windows is being shutdown?

I am writing a LabView program that will run in the background, hidden from the user. I was wondering if there is a way to detect when Windows is being shutdown or restarted?
Thank you for your help!

If you put your VI in the Windows STARTUP group, and then in the VI execution properties, set it to RUN MINIMIZED, you should achieve the desired result. As far as LOGGING when windows is opened or closed, that is a different matter. You might be able to extract that information from one of the BIOS tools.
Eric
Eric P. Nichols
P.O. Box 56235
North Pole, AK 99705

Is there any way to know when (and/or whether) a particular tv season will be available for purchase on itunes. i'm particularly interested in the 2nd season of "homeland," the 5th season of "damages" and the 7th season of "dexter." thanks.

is there any way to know when (and/or whether) a particular tv season will be available for purchase on itunes. i'm particularly interested in:
     the 2nd season of "homeland,"
     the 5th season of "damages"
     the 7th season of "dexter."
thanks.

Thanks. But the disc inspector only appears to let me change things like where the title menu button takes you, not detailed user operations. I have pretty much given up on this being anything other than a giant hassle, but if anybody knows whether a script could do this, I would be eternally grateful.

HT201209 any way to see when I redeemed an itunes card

Is there any way to see when I redeemed an itunes card? I have had £2.99 go "missing" but I have been told that iTunes doesnt always update my balance??????
I checked my balance, it said £3.82, I went back to my game, tried to make a £2.99 purchase only to be told I didnt have enough funds in my iTunes account (just so happened that my itunes account was suddenly £2.99 down!)

You just make a purchase and it will deduct it.

Puzzler - Is there a way to detect when an external headphone or speaker is plugged in?

I have a puzzler, and my initial question is simply, is there a way to see via Windows if/when an external headphone or microphone is plugged in, or is that all an electrical circuit independent of the OS?
Background: (not necessarily the question I'm asking, but providing anyway):
The background is this: Dozens, Hundreds, I think Thousands of owners of Toshiba Satellite owners with Conexant sound devices (including myself) the world over have this problem where the sound stops working about 1 to 2 minutes into playing non-stop
sounds/music/videos. In spite of all the experts telling these poor people to run a system restore and wipe out the past years of files and everything on their computer, the problem prevails no matter what. Some have even installed Linux, and the
problem persists. To me, it seems that the problem doesn't occur if the only sounds are the occasional bing or bong from a system warning, it seems to fail after 1 to 2 minutes of continuous play (but this particular observation is mine only, nobody else has
taken the time to point that out).
A few have claimed success via blowing the jacks out with compressed air, but that's not repeatable universally. Most people end up keeping external speakers plugged in permanently. In other words, it seems a lot like a hardware problem; However,
{edit 3}, my addition of "Edit 2" below makes it seem less like hardware.
One interesting thing: Headphones/speakers work permanently, there's no problem. More curiously, when the sound goes out, plugging any form of headphone/microphone jack into
EITHER the headphone
OR the microphone jack turns the sound back on too. This includes male-to-male extension cable with nothing installed. If nothing is on the other end, the sound will go out
again shortly, but jiggling or removing the male to male turns it back on.
EDIT 2: When the sound goes out, another way to get it back: From system tray, right click the speaker item and choose SOUNDS. The virtual VU meter shows that audio is playing (in tandem with the song, etc.), and is still showing audio
playing. The tabs available are Playback, Recording, Sounds, and Communications. When the sound does stop (assuming I was watching Playback), I click the Recording tab (just the tab header), and sound starts again.
P.S. What's the difference between "High Definition Audio Controller" under System Devices, and "Conexant SmartAudio HD" under "Sound, Video, and Game Controllers", in Device Manager? The "conexant smartaudio hd"
points to the latest Conexant driver, the "High Definition Audio Controller" points to a default windows driver. Just curious
I've Binged this extensively: Toshiba doesn't acknowledge the problem and nobody has fully solved the issue. I'm just curiously trying a few things myself, and I'm not sure if there's a way for the system to tell me an external mic/speaker has been
plugged in.
So to recap: My main question, can I detect when the computer thinks a headphone or microphone is plugged in? (My theory, if I can prove that the computer THINKS something is plugged in, it's a start).
Only secondarily, if anyone's interested, feel free to suggest ideas (here's what dozens of other posts have disproven: System restore; windows reinstall; outdated sound driver; outdated video driver; remove and re-detect sound and device via device manager;
malware; BIOS upgrade; Flash and/or the Flash/Firefox/Hardware Acceleration issue (problem happens with MP3, Flash, WMA, HTML5, Games, everything).
Thanks in advance!
EDIT: One person (theirs was under warranty, mine's not) ended up getting a new motherboard & speaker via Toshiba warranty, diagnosis ""machine intermittent no sound due to PCB faulty". I'm still interested in troubleshooting,
though. Link:
One lucky person, who got their motherboard replaced (they were under warranty, most of us aren't)

Hi,
If there are any headphone or speaker plugged in and detected, it will show in audio device manager console.
Type mmsys.cpl in Run, it will open Sound console.
Have you tried Hardware and Sound troubleshooter?
Andy Altmann
TechNet Community Support

Is there any way to know when an app is going to be discontinued?

I purchased an app around eight months ago for $13. I forgot about it until I was reloading apps onto my new IPad. When I went to find it, it was no longer in the app store at all. I contacted the support people who told me that since it was "so long ago" there was no recourse. So does that mean that any time you purchase an app it could disappear at any moment? Is there any way to know in advance that this will happen? Never mind that it stinks to spend that amount of money and then have nothing to look back at.
Additionally, I have had trouble reloading apps that I have paid for as an "in app purchase". What is the deal with that? Is that information not stored like buying an app outright?
Thanks
DTC

Apple constantly reminds folks to backup their content. Apple warns folks all of the times that content may not always be available in the iTunes or Mac App Stores and most folks ignore the warnings or cannot be bothered to read them. No, unless the developer warns you that they are with drawing an app from one of the stores, there is no way to know in advance that an app may no longer be available.
http://support.apple.com/kb/ht4009

Any way to notify when a Thread terminate ?

There's any way to notify (to other classes) when a thread terminate? Can I use an ActionEvent to notify that the thread is terminated ?
Thank you
Giorgio

Hi,
It depends what you're trying to do. A common occurrence is one thread waiting for another thread to complete. You can achieve this using the join() method on java.lang.Thread:
Thread t = new Thread(new Runnable() {
public void run()
// do some long winded task A
t.start();
// do task B that will run concurrently with A
// block this thread until task A completes
t.join();
(exception handling omitted for brevity)
For general notification between threads, the wait() and notify() constructs are commonly used. These are called on an object and can only be called in code blocks synchronized on that object. There are a whole gammut of issues to be aware of when using threads in this way; I'd strongly recommend getting a good book on the subject (e.g. "Concurrent Programming in Java, Second Edition" by Doug Lea.
null

Is there any way to detect commited deleted record in a table?

Hi All,
Is there any way to find out commited deleted record in a table without using triggers?
Thanks,

If you want to get back the deleted records and you are using 10g or above than Flashback technology can get that for you.
If you want to find out the commands that did the work and you are not using 10g than as suggested, Auditing and LogMiner can be the option.
Aman....

Any way to detect RTMFPP2PDisable

I have spent one week to find a send data problem and finally find that the user set RTMFPP2PDisable to 1.
That user can connect to my rtmfp server but cannot send any data.
Is there any api to detect that RTMFPP2PDisable is 1 and tell the user to enable it?

hi,I also Encounter this problem, I manually RTMFPP2PDisable = 0, still can't solve this problem, reinstall flash also cannot solve

I pasted a line of code in my muse site google9cd204871dd4e782.html, is there any way to see the code so i can remove it?

Hi, I pasted a line of code in my muse site, Is there any way to look at the code on my home page so i can remove this code? It is visible on my page when i view my site in browser, but i can't see it in muse.

How did you paste the code? Did you insert HTML elerment? Or just paste it on the page? What's the site address?
By the way. The code you have tried to add for Google webmaster tools should of been saved as a separate HTML file and upload it to your server to be verified, not put on the page, I think there are other methods that you put in the code to get verified.
thanks
jason

Is there any way to detect if there 's an JRE installed on customer machine

I want to know if the customer has the JRE installed to make sure that my program can run.So the problem come,how can I know that.Someone told me to use
a command like "java -version",which seemed reasonable.In that way,i should write a bat file do that.This file will detect if there is an JRE installed,if there is get the version of the JRE and compare with the available JRE of my program,but if not,connect to the offical site to download.It is really hard for me to do that bat file.I am just a new programer without any experience.So I really appreciate if someone give me some advice.Sorry,my english is so bad.I am waithing for the help.

scphan wrote:
masijade. wrote:
P.S. @OP, java -version will only work if the path is set correctly, of course, and what it returns will not, necessarily, be the highest version installed on the system, just the particular version that the path points to first.>This works in versions 1.1 and up:
public class FindVersion
     public static void main( String args[] )
          String prop = System.getProperty( "java.version" );
          System.out.println( prop );
import java.io.*;
public class ReadVersion
     public static void main( String args[] )
          try
               Process proc = Runtime.getRuntime().exec( "java FindVersion" );
               BufferedReader in = new BufferedReader(new InputStreamReader(proc.getInputStream()));
               String line = in.readLine();
               System.out.println( "java.version="+line );
          catch ( IOException e )
               e.printStackTrace();
Yes, of course that does, when Java is already installed, of course. The question here was how to determine if it is installed, at all. And, that will also only give you the version of the Java currently being used, of course, and not, as I pointed out in that quoted post, not necessarily the highest version installed on the system.
Please make your posts applicable.

Udf mapping: any way to detect last processed record?

Hi !
I need to detect inside my java user defined function, in the graphical mapping, if I am processing the last record of my input message, for example to add a trace message about how many records were processed, etc....I know I can detect the first one by mapping a function to the root node...and how about the last one ? are there any internal mapping variables available to recall inside a udf ?
thanks,
Matias

Hi,
one way would be to use a UDF of type queue
which will store all values from your message
this way you can get a total number of records
if you have the total then you know which one is the last one...
Regards,
michal
<a href="/people/michal.krawczyk2/blog/2005/06/28/xipi-faq-frequently-asked-questions"><b>XI / PI FAQ - Frequently Asked Questions</b></a>

Is there a way to detect when flash is being suppressed?

Here is the dilemma. I need to detect if Flash is on the page in the viewport playing or is being suppressed below the fold.
I've tried numerous tactics to detect if flash is playing properly or is being suppressed to no avail.
ThrottleEvent is inaccurate since flash must render in view, then go out of view for this event to be triggered. It is not automatically dispatched if flash is below the fold.
Detecting a reduction of frame rate: Also inaccurate for the same issue. Flash if renders below the fold, the frame rate is going to read as if it is not suppressed. Flash must scroll into view then out of view for the frame rate to read properly as suppressed.
Event enter frame for frame rate also inaccurate for issues above; needs to be in view and go out of view to see the slow down.
Activate/Deactivate -- needs focus so that doesn't help. I need to detect without focus.
Event.Render...useless.
Timer... no help there.
I've gone through tons of permutations of those above, combinations but nothing seems to be accurate enough. I know that Flash is being suppressed but I can't detect it. If I could know that Flash is playing at its proper operating speed (not suppressed) as in the viewport I could know the alternate.
Does anyone know how I can go about this?
Thanks,

If you put your VI in the Windows STARTUP group, and then in the VI execution properties, set it to RUN MINIMIZED, you should achieve the desired result. As far as LOGGING when windows is opened or closed, that is a different matter. You might be able to extract that information from one of the BIOS tools.
Eric
Eric P. Nichols
P.O. Box 56235
North Pole, AK 99705

Any way to fix when Firefox locks up or prevent it from happening?

I used Firefox on the mac, and while I much prefer it to Chrome, I've had no end of stability problems over the last several months, across multiple computers and installs.
The problem is that sometimes it will just... freeze up. Spinning ball for the app, completely unresponsive, nothing I can do, sitting at 100% cpu usage. I've let it sit like this for a while, and once or twice it's come up with a "unresponsive script" error, but viewing the same pages in Chrome or Safari never seems to cause an issue and I need to view these pages.
My solution so far has been to force quit Firefox when this happens, but losing what I've been working on has been rough now that it's happening 2 or 3 times a day. What I'm wondering is if there's a better way to handle this than destroying it - can I change some setting that says "if it doesn't work for 3 seconds, kill the problem script or whatever don't wait an hour" or to force it to stop whatever it is doing and respond to my commands?

[[Warning Unresponsive script - What it means and how to fix it]] this will give the option.
Consider addons.mozilla.org to search for a feature that might also address controlling scripts.

Is there any way to know when block corruption occurred?

In Oracle when block corruption happens; it does not write to alert.log. If one is running dbv or rman backup is being done or rman validate command is run then one knows about corruption. However, one does not know when actually corruption occurred. Is there a way to know exact time of corruption?

I am using cooked file system, no async i/o, no asm. However, by default on HP UNIX disk_asyncio=true ib iit.ora but I had read if there is no aysnc dveice set; i/o will be sychronous i/o. I am using Oracle 11g database on HP UNIX 11.23.
There are several other database instances on that server using oracle 11g and Oracle 10g and they do not have problem. Only one instance in QA and one in PROD has block corruption. Luns on XP are created by Storage
group and Logical Vloumes on UNIX are set ny UNIX admins. Each instange is on separte volume group and separate ORACLE_HOME.
I suspect somehow something was not set correctly in LUNS or in logical volmes. However, HP enginerrs cannot find naything wrong; so root cause is still unknon.

Any way to detect when a NotificationListeners MBean is removed?

Similar Messages

Maybe you are looking for