What is a listener for/ especially in struts + tomcat + hibernate

some example code sugguested that we should create a listener for the hibernate connection. i stil dont get it. anyone can explain this?

The listener is the product that allows APEX to communicate with the App Server.. The supported App servers are WebLogic & GlassFish (for version 2.x of the listner, version 1.x allows the usage of Tomcat and OC4J)..
In the prior database/app server setup you would use the HTTP server (Apache) with a mod called Mod_plsql to communicate between the app server and the database.
With the APEX Listener 2.x you can use it to host RESTful web-services and allow your APEX apps to import Excel workbooks directly and also print PDF files similar to FOP.
You really Can't share session state with other apps.. Why exactly would you want to do this??
Re: Run java applets in APEX, No you can run them in the app server.. Apex can work with Oracle EBS, there is a posted whitepaper on this from Oracle:
http://www.oracle.com/technetwork/developer-tools/apex/learnmore/apex-ebs-extension-white-paper-345780.pdf
Thank you,
Tony Miller
SmartDog Services
Austin, TX

Similar Messages

Listening for several input queues

Hi!
My application receives messages from several queues. I also need to know for each message what queue is it from. That's why I had to define separate MessageListener's for each queue. So each queue has its instance of MyListener (see below). I synchronized the onMessage method on static Object, so only one message from all queues is processed in given moment:
MyListener implements MessageListener
static Object object;
onMessage (Message message)
synchronized (object)
//process
The problem is, that while processing current message, new messages (I suppose one per queue) are already taken from the queue and waiting to be processed. Thus if my application will shut down I will loose at least one message per queue. I'd like to hear your suggestions.
Thanks.

Rather than creating multiple listeners, you can write one listener with a case like structure:
public void onMessage(Message m) {
Queue queue = (Queue) m.getJMSDestination();
String name = queue.getName();
if (name.equals("q1")) {
// what the message listener for q1 would do ...
} else if (name.equals("q2")) {
// etc
You can then register this message listener for multiple queues. The motivation for doing this was a requirement that the execution of the message listeners had to be serialized. You can also achieve this by creating the queue receivers from the same session.
If there is no serialization requirement it's a matter of taste whether you prefer the combo listener above or multiple listeners. In this case you also can create the sessions from different connections to get concurrent message dispatch and possibly better performance.
- Bjarne.

What do I download for Struts/JSP/Hibernate?

My organization has purchased a five-user license for "Workshop" and I would like to use it for Struts/Hibernate/JSP development. However, it's not clear what I need to download and install.
I tried downloading and installing both of these files:
workshopstudio102_win32.exe
workshop102_win32.exe
In both cases, after the dust settled there was no application called "Workshop" on my Windows XP system.
There is now something called "WorkSPACE Studio 1.1." ("Space," not "shop.")
What is "WorkSpace Studio?" I never heard of it before I ran this installer.
What is the difference between "Workshop Studio" and "Workshop for WebLogic?"
What do I download to get Eclipse-based Struts/JSP/Hibernate development tools?
How do I install it?
Thanks,
Ethan
Edited by ethanmichaels at 03/26/2008 4:48 PM

Hi Ethan,
The license you have purchased is for WorkshopStudio 10.2
This allows you to develop Struts/Hibernate/JSP applications against both BEA and non BEA servers.
Workshop for WebLogic allows users to develop applications against BEA WebLogic Servers and does not require a special license
More information on Workspace Studio is available at http://edocs.bea.com/wlw/docs102/workspaceFAQ.html
Hope this helps
cheers
Raj

What do I use for organizing and editing photos on the IPAD especially if I am importing directly from a camera?, What do I use for organizing and editing photos on the IPAD especially if I am importing directly from a camera?

What do you use for organizing and editing photos that you have imported from a SD card or camera?

Go to the iTunes App Store in the iTunes app on your computer. Type photo into the search window in the upper right corner and you will bring up all sorts of photo apps, free and paid, for enhancing, modifying, arranging, printing and sharing photos on an iPad.

Listening for cue points?

I keep getting error messages and don't know why?
I am trying to listen for cue point. What am I doing wrong?
Also, do I really need to have the NET_STATUS listener attached to both the NetConnection and NetStream?
Thanks a lot for any help!!!
var myVideo:Video = new Video();
addChild(myVideo);
var nc:NetConnection = new NetConnection();
nc.connect(null);
var ns:NetStream = new NetStream(nc);
myVideo.attachNetStream(ns);
ns.play("myVid.flv");
nc.addEventListener(NetStatusEvent.NET_STATUS, netStatusHandler);
ns.addEventListener(NetStatusEvent.NET_STATUS, netStatusHandler);
ns.addEventListener(AsyncErrorEvent.ASYNC_ERROR, asyncErrorHandler);
ns.addEventListener(MetadataEvent.CUE_POINT, cuePointHandler);
function cuePointHandler(infoObject:MetadataEvent):void
     trace("cuePoint from cuePointHandler");
     trace("Cue point name is: " + eventObject.info.name);
     trace("Cue point type is: " + eventObject.info.type);

What error do you get?
Yes, you should have NET_STATUS on both NetConnection and NetStream.
Also I don't see that you assign client to anything - connection and stream's events/methods are invoked on client. Especially you need it for listening for cue points. So, at least you need a line:
ns.client = this;
I think you mix unmixable here. I believe MetadataEvent.CUE_POINT is dispatched by FLVPlayback class. You do not use it. To read cue points from the stream you need to provide onCuePoint method in your code (again, it will work ONLY if you point to the client):
function onCuePoint (infoObject:Object):void {
     trace("cuePoint from cuePointHandler");
     trace("Cue point name is: " + eventObject.name);
     trace("Cue point type is: " + eventObject.info);
     trace("Cue point parameters Array is: " + eventObject.parameters);
I would move NetStream instnatiation to a function that is called when NetConnection is successfull. From Adobe help:
private function netStatusHandler(event:NetStatusEvent):void {
     switch (event.info.code) {
          case "NetConnection.Connect.Success":
               connectStream();
          break;
          case "NetStream.Play.StreamNotFound":
               trace("Stream not found: " + videoURL);
          break;
private function connectStream():void {
     ns = new NetStream(connection);
     ns.addEventListener(NetStatusEvent.NET_STATUS, netStatusHandler);
     ns.client = new CustomClient();
     var video:Video = new Video();
     video.attachNetStream(ns);
     ns.play(videoURL);
     addChild(video);

Won't show what I'm listening on windows live msn messenger

As the title said. There is no plugin option I can opt for like in Windows Media Player.
The previous iTunes version works fine but ever since I updated to iTunes 8, it does not show on my personal message of what song I'm listening to.
Am I the only one? If not, can anybody help?

Sorry that word up there is meant to be 'odd', not off.
anyway I solved it myself. I uninstalled the current itunes then re-installed itunes 7 (lucky I still have the setup file). the from there like with my other computer, I used the 'Check for Updates' (under Help) and had to restart my computer from there, and now it works and shows up on what I'm listening to. Hope this helps

Huge performance differences between a map listener for a key and filter

Hi all,
I wanted to test different kind of map listener available in Coherence 3.3.1 as I would like to use it as an event bus. The result was that I found huge performance differences between them. In my use case, I have data which are time stamped so the full key of the data is the key which identifies its type and the time stamp. Unfortunately, when I had my map listener to the cache, I only know the type id but not the time stamp, thus I cannot add a listener for a key but for a filter which will test the value of the type id. When I launch my test, I got terrible performance results then I tried a listener for a key which gave me much better results but in my case I cannot use it.
Here are my results with a Dual Core of 2.13 GHz
1) Map Listener for a Filter
a) No Index
Create (data always added, the key is composed by the type id and the time stamp)
Cache.put
Test 1: Total 42094 millis, Avg 1052, Total Tries 40, Cache Size 80000
Cache.putAll
Test 2: Total 43860 millis, Avg 1096, Total Tries 40, Cache Size 80000
Update (data added then updated, the key is only composed by the type id)
Cache.put
Test 3: Total 56390 millis, Avg 1409, Total Tries 40, Cache Size 2000
Cache.putAll
Test 4: Total 51734 millis, Avg 1293, Total Tries 40, Cache Size 2000
b) With Index
Cache.put
Test 5: Total 39594 millis, Avg 989, Total Tries 40, Cache Size 80000
Cache.putAll
Test 6: Total 43313 millis, Avg 1082, Total Tries 40, Cache Size 80000
Update
Cache.put
Test 7: Total 55390 millis, Avg 1384, Total Tries 40, Cache Size 2000
Cache.putAll
Test 8: Total 51328 millis, Avg 1283, Total Tries 40, Cache Size 2000
2) Map Listener for a Key
Update
Cache.put
Test 9: Total 3937 millis, Avg 98, Total Tries 40, Cache Size 2000
Cache.putAll
Test 10: Total 1078 millis, Avg 26, Total Tries 40, Cache Size 2000
Please help me to find what is wrong with my code because for now it is unusable.
Best Regards,
Nicolas
Here is my code
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import com.tangosol.io.ExternalizableLite;
import com.tangosol.net.CacheFactory;
import com.tangosol.net.NamedCache;
import com.tangosol.util.Filter;
import com.tangosol.util.MapEvent;
import com.tangosol.util.MapListener;
import com.tangosol.util.extractor.ReflectionExtractor;
import com.tangosol.util.filter.EqualsFilter;
import com.tangosol.util.filter.MapEventFilter;
public class TestFilter {
      * To run a specific test, just launch the program with one parameter which
      * is the test index
     public static void main(String[] args) {
          if (args.length != 1) {
               System.out.println("Usage : java TestFilter 1-10|all");
               System.exit(1);
          final String arg = args[0];
          if (arg.endsWith("all")) {
               for (int i = 1; i <= 10; i++) {
                    test(i);
          } else {
               final int testIndex = Integer.parseInt(args[0]);
               if (testIndex < 1 || testIndex > 10) {
                    System.out.println("Usage : java TestFilter 1-10|all");
                    System.exit(1);
               test(testIndex);
     @SuppressWarnings("unchecked")
     private static void test(int testIndex) {
          final NamedCache cache = CacheFactory.getCache("test-cache");
          final int totalObjects = 2000;
          final int totalTries = 40;
          if (testIndex >= 5 && testIndex <= 8) {
               // Add index
               cache.addIndex(new ReflectionExtractor("getKey"), false, null);
          // Add listeners
          for (int i = 0; i < totalObjects; i++) {
               final MapListener listener = new SimpleMapListener();
               if (testIndex < 9) {
                    // Listen to data with a given filter
                    final Filter filter = new EqualsFilter("getKey", i);
                    cache.addMapListener(listener, new MapEventFilter(filter), false);
               } else {
                    // Listen to data with a given key
                    cache.addMapListener(listener, new TestObjectSimple(i), false);
          // Load data
          long time = System.currentTimeMillis();
          for (int iTry = 0; iTry < totalTries; iTry++) {
               final long currentTime = System.currentTimeMillis();
               final Map<Object, Object> buffer = new HashMap<Object, Object>(totalObjects);
               for (int i = 0; i < totalObjects; i++) {
                    final Object obj;
                    if (testIndex == 1 || testIndex == 2 || testIndex == 5 || testIndex == 6) {
                         // Create data with key with time stamp
                         obj = new TestObjectComplete(i, currentTime);
                    } else {
                         // Create data with key without time stamp
                         obj = new TestObjectSimple(i);
                    if ((testIndex & 1) == 1) {
                         // Load data directly into the cache
                         cache.put(obj, obj);
                    } else {
                         // Load data into a buffer first
                         buffer.put(obj, obj);
               if (!buffer.isEmpty()) {
                    cache.putAll(buffer);
          time = System.currentTimeMillis() - time;
          System.out.println("Test " + testIndex + ": Total " + time + " millis, Avg " + (time / totalTries) + ", Total Tries " + totalTries + ", Cache Size " + cache.size());
          cache.destroy();
     public static class SimpleMapListener implements MapListener {
          public void entryDeleted(MapEvent evt) {}
          public void entryInserted(MapEvent evt) {}
          public void entryUpdated(MapEvent evt) {}
     public static class TestObjectComplete implements ExternalizableLite {
          private static final long serialVersionUID = -400722070328560360L;
          private int key;
          private long time;
          public TestObjectComplete() {}
          public TestObjectComplete(int key, long time) {
               this.key = key;
               this.time = time;
          public int getKey() {
               return key;
          public void readExternal(DataInput in) throws IOException {
               this.key = in.readInt();
               this.time = in.readLong();
          public void writeExternal(DataOutput out) throws IOException {
               out.writeInt(key);
               out.writeLong(time);
     public static class TestObjectSimple implements ExternalizableLite {
          private static final long serialVersionUID = 6154040491849669837L;
          private int key;
          public TestObjectSimple() {}
          public TestObjectSimple(int key) {
               this.key = key;
          public int getKey() {
               return key;
          public void readExternal(DataInput in) throws IOException {
               this.key = in.readInt();
          public void writeExternal(DataOutput out) throws IOException {
               out.writeInt(key);
          public int hashCode() {
               return key;
          public boolean equals(Object o) {
               return o instanceof TestObjectSimple && key == ((TestObjectSimple) o).key;
}Here is my coherence config file
<?xml version="1.0"?>
<!DOCTYPE cache-config SYSTEM "cache-config.dtd">
<cache-config>
     <caching-scheme-mapping>
          <cache-mapping>
               <cache-name>test-cache</cache-name>
               <scheme-name>default-distributed</scheme-name>
          </cache-mapping>
     </caching-scheme-mapping>
     <caching-schemes>
          <distributed-scheme>
               <scheme-name>default-distributed</scheme-name>
               <backing-map-scheme>
                    <class-scheme>
                         <scheme-ref>default-backing-map</scheme-ref>
                    </class-scheme>
               </backing-map-scheme>
          </distributed-scheme>
          <class-scheme>
               <scheme-name>default-backing-map</scheme-name>
               <class-name>com.tangosol.util.SafeHashMap</class-name>
          </class-scheme>
     </caching-schemes>
</cache-config>Message was edited by:
user620763

Hi Robert,
Indeed, only the Filter.evaluate(Object obj)
method is invoked, but the object passed to it is a
MapEvent.<< In fact, I do not need to implement EntryFilter to
get a MapEvent, I could get the same result (in my
last message) by writting
cache.addMapListener(listener, filter,
true)instead of
cache.addMapListener(listener, new
MapEventFilter(filter) filter, true)
I believe, when the MapEventFilter delegates to your filter it always passes a value object to your filter (old or new), meaning a value will be deserialized.
If you instead used your own filter, you could avoid deserializing the value which usually is much larger, and go to only the key object. This would of course only be noticeable if you indeed used a much heavier cached value class.
The hashCode() and equals() does not matter on
the filter class<< I'm not so sure since I noticed that these methods
were implemented in the EqualsFilter class, that they
are called at runtime and that the performance
results are better when you add them
That interests me... In what circumstances did you see them invoked? On the storage node before sending an event, or upon registering a filtered listener?
If the second, then I guess the listeners are stored in a hash-based map of collections keyed by a filter, and indeed that might be relevant as in that case it will cause less passes on the filter for multiple listeners with an equalling filter.
DataOutput.writeInt(int) writes 4 bytes.
ExternalizableHelper.writeInt(DataOutput, int) writes
1-5 bytes (or 1-6?), with numbers with small absolute
values consuming less bytes.Similar differences exist
for the long type as well, but your stamp attribute
probably will be a large number...<< I tried it but in my use case, I got the same
results. I guess that it must be interesting, if I
serialiaze/deserialiaze many more objects.
Also, if Coherence serializes an
ExternalizableLite object, it writes out its
class-name (except if it is a Coherence XmlBean). If
you define your key as an XmlBean, and add your class
into the classname cache configuration in
ExternalizableHelper.xml, then instead of the
classname, only an int will be written. This way you
can spare a large percentage of bandwidth consumed by
transferring your key instance as it has only a small
number of attributes. For the value object, it might
or might not be so relevant, considering that it will
probably contain many more attributes. However, in
case of a lite event, the value is not transferred at
all.<< I tried it too and in my use case, I noticed that
we get objects nearly twice lighter than an
ExternalizableLite object but it's slower to get
them. But it is very intersting to keep in mind, if
we would like to reduce the network traffic.
Yes, these are minor differences at the moment.
As for the performance of XMLBean, it is a hack, but you might try overriding the readExternal/writeExternal method with your own usual ExternalizableLite implementation stuff. That way you get the advantages of the xmlbean classname cache, and avoid its reflection-based operation, at the cost of having to extend XMLBean.
Also, sooner or later the TCMP protocol and the distributed cache storages will also support using PortableObject as a transmission format, which enables using your own classname resolution and allow you to omit the classname from your objects. Unfortunately, I don't know when it will be implemented.
>
But finally, I guess that I found the best solution
for my specific use case which is to use a map
listener for a key which has no time stamp, but since
the time stamp is never null, I had just to check
properly the time stamp in the equals method.
I would still recommend to use a separate key class, use a custom filter which accesses only the key and not the value, and if possible register a lite listener instead of a heavy one. Try it with a much heavier cached value class where the differences are more pronounced.
Best regards,
Robert

Itunes no longer compatible with 'show what i'm listening to' on msn?

Hiya,
I upgraded to itunes 8, and after this noticed that on windows live messenger the songs I play are no longer shown as what I'm listening to. I wondered if anyone else had experienced this? I've upraded to itunes 8.01 now and still they aren't shown.
Thanks,
Ali

It still works for me... iTunes 8.0.1 & WLM version 8.1 (on Vista) if that helps.
tt2

How to stop and start MDBs to listen for JMS messages

Hello! This might be more of an architecture question rather than a technical questing, but I post it here, in the lack of a better place...
For several years I have been using Webster and Webster MQ to send messages back and forth to clients. The architecture for the middleware platform has been designed around the functionality of ListenerPorts. Listenerports is a Webster functionality that let you "stop" and start to listen to JMS messages for a given MDB either by admin console, or by JMX.
The arhitecture we used was something like this :
1.Client sends a persistent message to a queue. (order)
2. An MDB pics up the order message, calls a SessionBean that "fronts" the IIOP back end system.
This is quite "out of the box" architecture, but we used the Listenerports to solve a stability problem for our back end system.
The backEnd system was quite unstable, so the EJB threw an exception (typically because of timeout or connection refused) back to the MDB.
The Listenerport was "defined" to handle 3 errors before stopping, so the MDB resent the message twice before the listenerport automatically stopped. The nice thing about this feature was that the client could continue to send orders, and was not bothered when the back end system was down.
When the backEnd system was up and running, we could start the listenerport and it was all back to normal state. We even had a start script that checked the state of the listenerport every 30 minute, and started it automatically if it was stopped, making the admin task of starting the MDB unnecessary..
Now.. Why am I telling this story..
I would like to know how this could be done using "clean" J2EE technologies..That is..Not using any technology that is not portable..
I`m playing with glassfish at home, and it struck me that there is nothing in the J2EE spec that defines the functionality described above ? Am i missing something ?
I Do not want to stop My application because the back end system is down? That is the only way (i know of) that i can "stop" to listen for messages..
I can put all the messages on an error queue when the backbend system is down, but that would lead to more code just to handle the error messages. Maybe the easiest way to solve this is to "move" (programmatically) all messages from the error queue over to the "standard" queue every XX minute, but somehow that sounds "wrong"
Can anyone give me some advice to how this problem situation should be solved ? I`m interested in the solution both from an architectural perspective and from a more technical perspective..
Best regards
Hans-Jacob Melby

Breakpoints, whether normal or conditional, are just meant for debugging of your code. I had the sense from your question that the pausing you want to do is a part of normal operation of your code. I would NOT recommend using a breakpoint for that situation. It would bring up the block diagram showing the breakpoint when it occurs. A user besides the programmer would not know what to do in that case.
Yes, both the inner and outer loops would have shift registers.
Putting a case structure with a small while loop inside the "Pausing Case" is doable. It just depends on what you are doing or waiting for while the program operation is "paused".

What is Best Practice for Publishing and Subscribing to Multicast Video P2P

Please, could someone help with an issue I am having in developing a peer to peer video chatting application? My application uses multicast to publish and subscribe to video streams of NetGroup members. I'm listening for the NetGroup.Neighbor.Connect event, and I'm calling the following function:
protected function onPeerConnect(event:NetStatusEvent):void{
                var peerID:String = event.info.peerID;
                // create user vo here
                // user Value Object for incoming stream
                userVO = new User();
                userVO.peerID = peerID;
                netGroup.addNeighbor(peerID);
                receiveStream(userVO);
protected function receiveStream(userVO:User):void{
                // init netstream
                var stream:NetStream = new NetStream(nc,groupspec.groupspecWithAuthorizations());
                stream.receiveVideo(true);
                stream.addEventListener(NetStatusEvent.NET_STATUS,netStatus);
                // init panel
                // alter to use custom component instead
                var panel:Panel = new Panel();
                panel.id = "panel" + panel_seq;
                panel.title = "Panel" + panel_seq;
                panel.width=322;
                panel.height=281;
                panel.x = 50 * panel_seq + 200;
                panel.y = 25 * panel_seq + 200;
                var cpanelContent:Array = new Array();
                panel.controlBarContent=cpanelContent;
                panel.controlBarVisible=true;
                // init video
                var video:Video = new Video();
                video.width=320;
                video.height=240;
                video.attachNetStream(stream);
                stream.play("media");
                // init videoWrapper
                var videoWrapper:UIComponent = new UIComponent();
                videoWrapper.id = "wrapper" + panel_seq;
                videoWrapper.addChild(video);
                // add to display list
                addElement(panel);
                panel.addElement(videoWrapper);
                // drag and drop panel
                panel.addEventListener(MouseEvent.MOUSE_DOWN,function(event:MouseEvent):void{
                    panel.startDrag();
                    addElement(panel);
                panel.addEventListener(MouseEvent.MOUSE_UP,function(event:MouseEvent):void{
                    panel.stopDrag();
                panel_seq++;// used for unique panel id
                userVO.panel = panel;// reference to the panel
                userVO.stream = stream;
                userVO.video = video;
                peers.addItem(userVO);
I am confused on this:
var stream:NetStream = new NetStream(nc,groupspec.groupspecWithAuthorizations());
What should I pass as the second parameter to establish an incoming NetStream with the publishing peer? I've seen people put in the farID but I haven't figured out how to access it. What is the difference between event.info.peerID and event.info.neighbor? And since I'm multicasting to the group do I need to pass in the groupspec or the farID? I would love some clarification on this.
What is happening is this:
When I join the group, and there are two members in the group already, I'll get three panels with videos. However, duplicate video streams are being attached. When I inspect the peerStreams array I'm seeing a length of 0, so does that mean that no one is subscribing to my published netstream? If so, how do I specifically subscribe to each published stream in the group? Sometimes if I step through in debug mode, I get three separate camera feeds in their prospective panels, but if I run it will have duplicates. I thought at first that this was a referencing error because all of the NetGroup.Neighbor.Connect events where happening all at the same time and perhaps that is the reason for the duplicates?
My only other thought is that maybe I'm multicasting one guys stream to the whole group, but I'm getting varying results so I want to know what is the correct way to grab, in sequence, a NetGroup members' published netstream and be sure that all other members are subscribing to my NetStream as well?
Also, I am using Value Objects to keep track of who my group members are, is that data shared with the group or is it not accessible to all members?   or should I use another method of keeping track of my group members?
Please help! Thank you in advance!

it appears you posted an identical message in two threads. i've responded in the other thread:
http://forums.adobe.com/message/3701380#3701380

On starting WebLogic getting Error : Listening for transport dt_socket at address: 8453 Exception in thread "main" java.lang.NoClassDefFoundError: vXmx512m

Hi,
system i am using for Oracle SOA is :
Windows 64 Bit
i5 Processor
6 GB RAM
29 GB on C Drive is already free after installation of all SOA related products.
I have installed wlserver_10.3 for SOA 11g Development purpose and followed exact installation sequence and procedure as mention in oracle documentation
i created domain also and every thing look correct but after installation procedure there are "Additional actions required just after every thing installed" :
setting memory limit
starting weblogic server (Admin Server)
starting weblogic managed server
and so on
now Problem is when i execute C:\Oracle\Middleware\user_projects\domains\soa_div_domain\bin startWebLogic.cmd
as mention in oracle documentation i am getting following error message : (i have only included last error lines instead of complete console log)
oConsole= -Dweblogic.ext.dirs=C:\Oracle\MIDDLE~1\patch_wls1036\profiles\default\
sysext_manifest_classpath;C:\Oracle\MIDDLE~1\patch_oepe180\profiles\default\syse
xt_manifest_classpath;C:\Oracle\MIDDLE~1\patch_ocp371\profiles\default\sysext_ma
nifest_classpath;C:\Oracle\MIDDLE~1\patch_adfr1111\profiles\default\sysext_manif
est_classpath weblogic.Server
Listening for transport dt_socket at address: 8453
Exception in thread "main" java.lang.NoClassDefFoundError: vXmx512m
Caused by: java.lang.ClassNotFoundException: vXmx512m
        at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: ++Xmx512m. Program will exit.
Now to resolve this what i already tried are :
I change JAVA_HOME and PATH to jdk6 which came with web logic installer
Location is at :
JAVA_HOME : C:\Oracle\Middleware\jdk160_29
PATH : C:\Oracle\Middleware\jdk160_29\bin
The above dose not include any space between path
I ran the startWebLogic.cmd and got same error
After that I also added
CLASSPATH : C:\Oracle\Middleware\jdk160_29\lib\tool.jar;C:\Oracle\Middleware\wlserver_10.3\server\lib\weblogic.jar;C:\Oracle\Middleware\jdk160_29\bin
WL_HOME: C:\Oracle\Middleware\wlserver_10.3
I ran the startWebLogic.cmd and got same error
I also used earlier path which I used with eclipse when I was working on other java development.
JAVA_HOME : C:\Program Files\Java\jdk1.7.0_21
PATH : C:\Program Files\Java\jdk1.7.0_21\bin
I ran the startWebLogic.cmd and got same error
Then I also gave PATH: C:\Oracle\Middleware\wlserver_10.3\server\lib      (including the existing one using ; )
I ran the startWebLogic.cmd and got same error
Now may be there is a file called setSOADomainEnv.cmd in
< C:\Oracle\Middleware\user_projects\domains\soa_div_domain\bin\ setSOADomainEnv.cmd>
That include some values for memory set :
set JAVA_OPTIONS=%JAVA_OPTIONS%
set DEFAULT_MEM_ARGS=-Xms512m –Xmx512m
set PORT_MEM_ARGS=-Xms512m –Xmx768m
if "%JAVA_VENDOR%" == "Oracle" goto OracleJVM
set DEFAULT_MEM_ARGS=%DEFAULT_MEM_ARGS% -XX:PermSize=128m -XX:MaxPermSize=768m
set PORT_MEM_ARGS=%PORT_MEM_ARGS% -XX:PermSize=256m -XX:MaxPermSize=768m
now as I change the red highlighted value to 512 value because I have less memory resource and I checked in installation documentation to change the above red highlighted value to 512 original is 1024 which is too high and it was crating problem and showing memory space problem so I change it to 512 and now I am not getting that memory space problem error but may be the above error is related with change value in setSOADomainEnv.cmd file or not
Following are my domain, weblogic and soa home directory path and all these path are exactly what it suppose to be according to Oracle Installation Documentation:
WebLogic :
C:\Oracle\Middleware\wlserver_10.3
C:\Oracle\Middleware\coherence_3.7
C:\Oracle\Middleware\oepe_11.1.1.8.0
SOA Oracle Home Directory :
C:\Oracle\Middleware\Oracle_SOA1
OSB Home Location :
C:\Oracle\Middleware\Oracle_OSB1
Domain name : soa_div_domain
Domain Location :       C:\Oracle\Middleware\user_projects\domains
Application Location : C:\Oracle\Middleware\user_projects\applications
Domain Location:        C:\Oracle\Middleware\user_projects\domains\soa_div_domain
form here i am trying to start weblogic : C:\Oracle\Middleware\user_projects\domains\soa_div_domain\bin\startWebLogic.cmd
Please tell me any body want more details.
Thanks.

I think you are missing a character '-'
USER_MEM_ARGS="Xms512m -Xmx512m -XX:MaxPermSize=128m"Add this character like follows
"-Xms512m -Xmx512m -XX:MaxPermSize=128m"

Issue with setting an Action Listener for a Command Button

Hi all,
I'm trying to set an action listener for a CoreCommanButton in a backing bean. Here's my code:
     CoreCommandButton editBtn = new CoreCommandButton();
          MethodBinding mb = FacesContext.getCurrentInstance().getApplication().createMethodBinding("#{backBean.doButtonAct}",null);
          editBtn.setActionListener(mb);
//Action listener method
     public void doButtonAct(ActionEvent actionEvent)
I keep getting a javax.faces.el.MethodNotFoundException error. However when I remove the ActionEvent parameter in doButtonAct(), I get a wrong number of arguments error.
So i'm guessing there is something wrong with the parameters i accept in my action listener method. what can be causing this issue?
Cheers.

I figured this out.
Since doButtonAct() requires an ActionEvent object as a parameter, i needed to define the parameter type when I create the method binding.
Solution:
     Class argsString[] = new Class[] { ActionEvent.class };
          MethodBinding mb = FacesContext.getCurrentInstance().getApplication().createMethodBinding("#{backBean.doButtonAct}",argsString);

A Listener For JTable Row Selection Changed?

Never mind... Thought of a couple other things after I posted and found ListSelectionListener. This looks like it fulfills my requirement nicely. - cimmerian76
>>>
TableModelListener isn't what I am looking for here. Basically, I'm looking for something that behaves in a way that is analogous to
TreeSelectionListener's valueChanged(...). Perhaps I'm looking in the wrong places, but the only things I've found were RowSet listener (not even close)
and TableModelListener (not exactly what I'm looking for - I'm not concerned about data in the table changing).
The tool I'm writing displays additional information about the object in the row selected in an adjacent panel.
This display should change every time a user selects a different row.
I can mimic the behavior I want using a mouse listener on the table, so this isn't an emergency.
It's more about curiosity. If I can find something that produces this functionality directly, I would prefer to use that.
<<<
Message was edited by:
cimmerian76

Hi,
you can use this to handle selection events for the table:
yourTable.getSelectionModel().addListSelectionListener(... );
Now e.g. the class containing your main can implement interface ListSelectionListener.

What is the password for 'oracle' user created during XE installation?

Hi,
What is the password for 'oracle' user automatically created when XE is installed?
I installed XE on Linux and it's created under 'oracle' user, but I don't know 'oracle' password. So, I cannot stop TNS listener.
During configuration, it prompted me to enter SYS and SYSADMIN password but it didn't ask me to enter 'oracle' user password.
Please let me know or point me to the document.
Thanks,
N

Hi Jari,
I tried your suggestion, but it didn't work unfortunately.
When I type (sudo su -oracle) as follows, it still prompts the password. When I hit Enter key w/o anything, it seems to proceed and the prompt shows up in the following line. So, I thought it was successful, but when I checked 'whoami', it's not logged in as 'oracle'.
So, I created the password for 'oracle' and logged in as 'oracle' using a new password. Then, I stopped TNS listener to uninstall XE.
It would be nice if it's documented in XE document somewhere... since it's created by XE installation, I assumed some kind of default password was used.
Thanks,
N

Table event listener for both columns and rows

My table listener only gives me the printed values when I click on different rows and not when I click on different columns. Do I need 2 listeners (one inside the other one) to get a change recorded each time I click on a cell in the table? Here is the listener code:
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        public void valueChanged(ListSelectionEvent e) {
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          ListSelectionModel lsm = (ListSelectionModel)e.getSource();
          if (e.getValueIsAdjusting()) {
            return;
          if (lsm.isSelectionEmpty()) {
            //no rows are selected
          else {
            selectedSiteRow = new Integer(lsm.getMinSelectionIndex() + 1).toString();
            System.out.println("selectedSiteRow = " + selectedSiteRow);
            SetupNum = selectedSiteRow; // row that the user selected
            ObjectNum = "1";
            objnum = "1";
            dataModels.remove("O"); // remove the object tables from the dataModels hashtable
            dataModels.remove("P"); // remove the object tables from the dataModels hashtable
            for (int i = 0; i < wholefile.size(); i++) {
              setupnum = selectedSiteRow;
              if (wholefile.elementAt(i).toString().charAt(0) == 'O') {
                processLine(wholefile.elementAt(i).toString(), columnNamesO);
                String keyO = "O";
                DefaultTableModel modelO = (DefaultTableModel)dataModels.get(keyO);
                jTable2.setModel(modelO); // change the table to the new table model
              if (wholefile.elementAt(i).toString().charAt(0) == 'P') {
                processLine(wholefile.elementAt(i).toString(), columnNamesP);
                String keyP = "P";
                DefaultTableModel modelP = (DefaultTableModel)dataModels.get(keyP);
                jTable3.setModel(modelP); // change the table to the new table model
    );The words "I am here" only appear when I click on rows and not when I click on columns of that same row. Anyone know why?
Also, each time I click on a row, "I am here" appears 2 times. I know I read that someone else had that problem. I will try to find the solution to that one in the forum.
Thanks.
Allyson

I found out how to get the column, but I can't seem to get them together. Here is the listener for the column:
      ListSelectionModel colSM1 = jTable1.getColumnModel().getSelectionModel();
      colSM1.addListSelectionListener(new ListSelectionListener() {
        public void valueChanged(ListSelectionEvent e) {
          if (e.getValueIsAdjusting()) {
            return;
          ListSelectionModel lsm = (ListSelectionModel)e.getSource();
          if (lsm.isSelectionEmpty()) {
            //no columns are selected
          else {
            SelectedC = lsm.getMinSelectionIndex();
      });These are 2 different listeners and I really want to find out what row,column has changed. Is there any way to combine these somehow? Thanks.
Allyson

What is a listener for/ especially in struts + tomcat + hibernate

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