In servlet what Event Listener interface defines session will passivate()

Hi!
In servlet what Event Listener interface defines session will passivate() method?
Thanx

Hi!
for the above question which one will be the correct answer?
1.HTTPSessionEventListener
2.HTTPSessionListener
3.HTTPSessionAttributeListener
4.HTTPSessionActivationListener

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Which Event Listener interface is used to handle the events

Hi!
which Event Listener interface is used to handle events that occur when an attribute is added or removed from the Application Servlet context?
1.Servlet context Listener
2.HTTP Session Activation Listener
3.HTTP Session Listener
4.Servlet Context Attribute Listener
Thanx

I guess you can find that out using google.... it would be fast and easy...

Servlet also implementing listener interface

Hi,
Can I have a servlet "extends HttpServlet" and "implements HttpSessionListener" at the same time? If I add both a listener and a servlet element in deployment descriptor, how the container will instaniate/initialize the servlet/listener?
Thanks.

Hi,
Can I have a servlet "extends HttpServlet" and
"implements HttpSessionListener" at the same time? Yes, of course. Plenty of examples of this elsewhere in Java (e.g., java.awt.Canvas).
If
I add both a listener and a servlet element in
deployment descriptor, how the container will
instaniate/initialize the servlet/listener?Same way it always does: by calling the HttpServlet ctor. The fact that there's a new Listener interface doesn't affect that.
You're on the hook to implement the interface's methods and make sure they're called appropriately.
Whether this is a good design or not is another question. (I don't know the answer.)
Thanks.You're welcome. - %

10.1.3, Session Edior, Specifying custom session event listener

When in 9.0.4.4, we can specify custom sesson event listener in session editor.
Using 10.1.3 mapping workbench/session editor, I haven't found a way of doing it. Is this supported?
Thanks.
Haiwei

Never mind. After adding jar to the classpath, I now can specify custom sesson event listener in the session editor. Thanks.

URGENT : EVENT Listener Problem

Hi All,
Thanks for your time. I am facing a Small issue with Event
dispatcher and Add Event listener. Well i will explain the problem.
I am having one MovieClip named BUTTON_SET and i gave
"ButtonSet.as" as linkage Class.
Inside that BUTTON_SET i am having some Buttons and they are
also having "UIButton.as" as linkage class
UIButton Dispatching press and release events, But unable to
capture it using ButtonSet Class. Here with i have attached the
Code and i gave the Source URL Too.
upto my Knowledge : UIButton class is not initiated When the
ButtonSet is ready to addListener.
Please Help me to fix this.
if i don't find a solution i need to change all my class
structures.
CLICK HERE FOR SOURCE
CODE

According to your Code, When you are calling the InitHandler
Functionction the Buttons may/may not be Initiated. So use the
Enterframe to check whether its loaded or not.
Write down this in the ButtonSet to replace the init Handler
Call.
this.onEnterFrame = Delegate.create(this, initHandler);
inside the initHandler remove the function This will help you
if you are not using any Enterframe for any other manipulation)
delete this.onEnterFrame;

When calling webservice Session event listener threw exception

Hi All,
I have Schdule the process to call webservice for 1 hour.
When it accessed It is throwing Exception But data send to Server and received response as true from webservice.
Exception details found in log file.
2007-12-04 01:00:36 StandardManager[npbpqa] Session event listener threw exception
java.lang.IllegalStateException: getAttribute: Session already invalidated
     at org.apache.catalina.session.StandardSession.getAttribute(StandardSession.java:925)
     at org.apache.catalina.session.StandardSessionFacade.getAttribute(StandardSessionFacade.java:124)
     at org.apache.axis.transport.http.AxisHTTPSessionListener.destroySession(AxisHTTPSessionListener.java:43)
     at org.apache.axis.transport.http.AxisHTTPSessionListener.sessionDestroyed(AxisHTTPSessionListener.java:72)
     at org.apache.catalina.session.StandardSession.expire(StandardSession.java:623)
     at org.apache.catalina.session.StandardSession.expire(StandardSession.java:572)
     at org.apache.catalina.session.StandardManager.processExpires(StandardManager.java:746)
     at org.apache.catalina.session.StandardManager.run(StandardManager.java:823)
     at java.lang.Thread.run(Thread.java:534)
Can any one help me urgently.
Thanks in advance.
Venkat K
Edited by: venkat2007 on Dec 4, 2007 2:44 PM

The service is working fine from a web page that my coworker did. I have not installed soap UI yet, but I used it at my last job. Since I posted this I have a new computer, have installed BizTalk Server 2013 R2 and Visual Studio 2013 Premium.
This is what I've done...
Created a new Host called BizTalkServerApplication64 with the '32-Bit only' unchecked.
Created a new host instance using the new host.
Created a new Send Handler for both Adapters 'WCF-BasicHttp' and 'WCF-Custom' using the new host.
configured both Send Ports (WCF-BasicHttp and WCF-Custom) to use the new send handler.
Have tried binding the logical port to both basic and the custom ports.
Now I get a different error which is:
Error Description: System.ServiceModel.CommunicationException: An error occurred while receiving the HTTP response to http://lbenson/MDSVC2/Service1.svc. This could be due to the service endpoint binding not using the HTTP protocol. This could also be due
to an HTTP request context being aborted by the server (possibly due to the service shutting down). See server logs for more details. ---> System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a receive. --->
System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host...
Any suggestions for this error? I'm not sure if this means I'm closer to getting it work or further.
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How to define event hander interface in Class Builder (se24)?

Hello,
I've got the following local interface defined.
INTERFACE lif_alv_grid_event_handler.
METHODS:
    handle_button_click FOR EVENT button_click OF cl_gui_alv_grid
      IMPORTING es_col_id es_row_no,
    handle_double_click FOR EVENT double_click OF cl_gui_alv_grid
      IMPORTING e_row e_column es_row_no,
    handle_hotspot_click FOR EVENT hotspot_click OF cl_gui_alv_grid
      IMPORTING e_row_id e_column_id es_row_no,
    handle_toolbar FOR EVENT toolbar OF cl_gui_alv_grid
      IMPORTING e_object e_interactive,
    handle_user_command FOR EVENT user_command OF cl_gui_alv_grid
      IMPORTING e_ucomm.
ENDINTERFACE.
Now I want to define it as a dictionary object using se24.
My problem is I could not find the quivalent of "FOR EVENT"
word in it.
Is there any chance to do that in Class Builder?
Best regards
Pawel

Hello Pawel
Display your class with the event handler methods in SE24 / SE80 and choose the DETAIL button (above the table control with the methods).
Here you can define a method as "event handler for" an event of another class.
On SAP release >= 6.20 you can right-click on a method in the tree view and choose context menu function Display -> Definition (tabstrip Attributes ).
Regards
Uwe

Event delegation model VS Listener interfaces?

hello again,
i got confused with "event delegation model and Listener interfaces".are both of these things are same or they are completely opposite, or they go hand in hand?
can any body help me understand that concept.
thanks

event delegation would be the concept, passing out events to interested parties. listener interfaces and registering them with the event sources would be the implementation of that concept.

Servlet cannot find local interface

I have created a session bean called "UsersManagementBean" and his local interface called "UsersManagement".
After deploying the application on JBoss server i got the error "PackageName.UserManagement not bound".
my jndi tree view shows (under global jndi namespace)-
+- UsersManagementBean (class: org.jnp.interfaces.NamingContext)
|   |   +- local (proxy: $Proxy85 implements interface PackageName.UsersManagement,interface org.jboss.ejb3.JBossProxy)code related from the servlet-
@EJB
    UsersManagement mng;
    mng=(UsersManagement)context.lookup(UsersManagement.class.getName());local interface-
@Local
public interface UsersManagement
{}session bean-
@Stateless
public class UsersManagementBean implements UsersManagement
{}what's wrong?
why can't he find the local interface?
thanks in advanced.

According to the EJB 2.0 spec:
"A local client of an entity bean may be a session bean, a
message-driven bean, or another entity bean."
This is not exclusive list, servlets and JSPs also can work with local EJB interfaces. Please note that your WEB app. and EJBs should be deployed in the same EAR.
The question is, can I use a JNDI lookup for the local
Home and EJBObject interfaces, rather than having the
overhead of using the RMI based remote implementationsYes you can. You will need to define local ref in web.xml descriptor:
<ejb-local-ref>
    <ejb-ref-name>ejb/CarmichaelSessionRef</ejb-ref-name>
    <ejb-ref-type>Session</ejb-ref-type>
    <local-home>carmichaelbeans.beans.CarmichaelSessionLocalHome</local-home>
    <local>carmichaelbeans.beans.CarmichaelSessionLocal</local>
    <ejb-link>CarmichaelSession</ejb-link>
</ejb-local-ref>lookup you bean in java:comp/env context:
InitialContext ic = new InitialContext();
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Extendable event/listener hierarchy - alternatives to double dispatch?

In the course of a research project we are currently implementing an event based integration framework. We would like to offer an event hierarchy that should be extendable by the user through inheritance. Also, the user should be able to implement and register event listeners that offer a number of overloaded methods to handle different incoming event types, including the user defined ones. The event listeners are also inherited from an existing listener hierarchy. We want to allow for the user to implement handler methods for only selected subtrees of the event hierarchy, leaving the rest to the default listener implementation.
We would like to avoid using reflection in order to keep the code portable to C++.
In a first approach, we tried to solve this using double dispatch, which does not work due to the extendability of the hierarchy. The new event types would need to be added to the base listener interface.
Currently, we are thinking about implementing a table based dispatching, that requires the user to register new event types before using them. But this might become a bit complicated, as we would like the dispatching to respect the inheritance hierarchy (but not use reflection).
Since this will be an essential part of the framework, which can not easily be changed, we would be glad to hear your opinion what might be the best approach to this problem. Are there any new features in the Java language we have missed, that might allow to use double dispatch here (e.g. generics)? Are there any generic approaches to table based dispatching, that avoid reflection? Are we totally missing something else?
Thanks a lot in advance,
Jan

Hi,
to do so, you need to declare those fields in the form CREATE_HIERARCHY.
For example, to add FLDATE node, you should do:
    ON CHANGE OF LS_SFLIGHT-CARRID.
      PERFORM ADD_CARRID_LINE USING    LS_SFLIGHT
                              CHANGING L_CARRID_KEY.
    ENDON.
    ON CHANGE OF LS_SFLIGHT-CONNID.
      PERFORM ADD_CONNID_LINE USING    LS_SFLIGHT
                                       L_CARRID_KEY
                              CHANGING L_CONNID_KEY.
    ENDON.
    ON CHANGE OF LS_SFLIGHT-FLDATE.
      PERFORM ADD_FLDATE_LINE USING    LS_SFLIGHT
                                       L_CONNID_KEY
                              CHANGING L_FLDATE_KEY.
    ENDON.
    ON CHANGE OF LS_SFLIGHT-PRICE.
      PERFORM ADD_PRICE_LINE USING     LS_SFLIGHT
                                       L_FLDATE_KEY
                              CHANGING L_PRICE_KEY.
    ENDON.
and then create the new FORMS PERFORM ADD_PRICE_LINE and
PERFORM ADD_FLDATE_LINE by copy of the existent
PERFORM ADD_CONNID_LINE and change the L_NODE_TEXT in the form.
I suposed you are new to ALV's, so i have a sugestion for you.
Instead of CL_GUI_ALV_TREE try to use some examples of CL_GUI_ALV_TREE_SIMPLE. It's much more simple to understand and to work with. For example Report BCALV_TREE_SIMPLE_DEMO.
In this case, to add more nodes to the the you just need to add 3 lines of code in
perform build_sort_table.
Regards,

JList event listener problem

I'm trying to define an event listener for a JList component. The code is shown below. The problem i'm having is that when elements are added to the JList none of the functions (callFunctionHere()) are being called. Can anyone tell me what i'm doing wrong? (elements are being added to the list using DefaultListModel.addElement())
        pnlWhere.lstCond.getModel().addListDataListener(new javax.swing.event.ListDataListener() {
            public void contentsChanged(ListDataEvent e) {
                callFunctionHere();
            public void intervalRemoved(ListDataEvent e) {
                callFunctionHere();
            public void intervalAdded(ListDataEvent e) {
                callFunctionHere();
        });Thanks,
Danny.

Check out the KeyListener interface. You can create an implementation that searches for a string starting with the character of the key that was pressed.

Can't remove event listener from Image

I'm clearly missing something and would appreciate some help. I'm trying to run an event handler when an Image completes loading, then remove the handler so that it won't run again should the image be reloaded later.
The problem that I'm having is that the event handler simply wont' go away, despite calling removeEventListener on the Image object.
The following example demonstrates the problem (the example doesn't actually do anything useful...it's just the shortest example to demonstrate the problem). (To run the app, you'll have to provide any ol' JPEG file named "myImage.jpg" in the "src" directory of your project).
What I expect to happen is :
     1) on startup, the image loads and loadComplete() runs.
     2) loadComplete removes the event Listener so that subsequent re-loads won't re-fire the handler. I only want the handler to run once.
     3) "loadComplete" shoudl be displayed in the Debug console.
     4) A button click should display only "Changing Image" in the Debug console
What I get instead is that the loadComplete handler isn't removed, and every time I click the button, loadComplete runs when the image is re-loaded   (i.e., every button click results in both "Change Image" AND "loadComplete" being displayed in the Debug console).
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
    <mx:Image width="655" height="181" source="myImage.jpg" id="myImage" autoLoad="true" scaleContent="true" complete="loadComplete()" x="100" y="100"/>
    <mx:Button x="100" y="341" label="Button" click="click(event)"/>
    <mx:Script>
        <![CDATA[
            private function loadComplete():void
                trace ("loadComplete");
                myImage.removeEventListener("complete", loadComplete);
            private function click(evt:Event):void
                trace ("Changing Image");
                myImage.load("myImage.jpg");    // Reload same image; it's just an example
        ]]>
    </mx:Script>
</mx:Application>

Hi,
You can remove only event listeners that you added with the addEventListener() method in an ActionScript block. You cannot remove an event listener that was defined in the MXML tag, even if it was registered using a call to the addEventListener()method that was made inside a tag attribute.
Check this page for reference.
http://livedocs.adobe.com/flex/3/html/help.html?content=events_05.html
You can modify the code a bit a get it working
<mx:Image width="655" height="181" id="myImage" scaleContent="true"
          x="100" y="100"
          creationComplete="myImage_creationCompleteHandler(event)"/>
private function myImage_creationCompleteHandler(event:FlexEvent):void
     myImage.addEventListener("complete",myImage_completeHandler);
     myImage.load("myImage.jpg");
private function myImage_completeHandler(event:Event):void
     myImage.removeEventListener("complete",myImage_completeHandler);

How do I assign a mouseclick event Listener to a simplebutton already nested in a movie clip when it's dropped on stage?

I'm trying to assign a mouseclick event listener to a simplebutton nested within a movie clip's later frames, starting at frame 2 and up. This card, however, is not added to my game until later, and when the player clicks on it/turns it over.
There are four files involved in this program:
#1 The main actionscript file, which corresponds to
#2 my dreamQuester .fla file.
#3 my artifactCard file movieClip's corresponding .as file,
#4 my combo1.as file corresponding to a an instance of a simpleButton named combo1 that is already
nested --and this instance is already named-- inside/as a child of said artifactCard movieclip.
What I've done so far isn't working:
In my main dreamQuester.as file, when a player clicks on an artifactCard, its MOUSE_DOWN event
listener takes them to this function (clickArtCard), where the trouble is at:
// player clicked on the artC card--which is a child of posArt1 on stage--to turn card over:
        function clickArtCard(a_event:MouseEvent) {
            var thisArtCard:artifactCard = (a_event.target as artifactCard);
            thisArtCard.gotoAndStop(unclickedArt1); // go to frame number of artifact
                                // card where combo1 button is.
            thisArtCard.removeEventListener(MouseEvent.CLICK,clickArtCard);
            thisArtCard.buttonMode = false;
            trace("combo1.combo is:" + combo1.combo);
            trace("posArt1.artC.combo1 is:" + posArt1.artC.combo1);
            posArt1.artC.combo1.addEventListener(MouseEvent.MOUSE_DOWN, comboClickedWHO);
when the artC card--the static public instance of artifactCard--is clicked, it only gets to the
trace("posArt1.artC.combo1 is:" + posArt1.artC.combo1); which returns this error message:
TypeError: Error #1010: A term is undefined and has no properties.
    at MethodInfo-61()
So do how would I declare a static public variable of this simpleButton at the start of my main .as
file to make it defined to get a mouseDown actionListener into my pre-existing-and-named-instance
combo1 simpleButton?
perhaps there is a way, while the debug movie program is running, to click on the simpleButton and see exactly
what it's parent heirarchy is, to see the name of all parents above the simpleButton incase they are
different then what I think?
(just in case, I was hoping to squeeze a zip file containing these files to be less than 9MB incase someone was willing to look at my files to see what I've done so far, but 9 megs is just too big! even though all graphics I've imported where turned into vector graphics with trace bitmap. I wish there was a way to check the file size of each symbol in Flash CS4, here...)
Thank you so much for any help!
~Ethan

Just use a
stage.addEventListener(KeyboardEvent.KEY_DOWN, keyPressed);
function keyPressed(event:KeyboardEvent):void {
     //trace(event.keyCode);
     if(event.keyCode == ???){
          // play the sound
Where I show the "???" you would replace with the keyCode for the key you want pressed for that sound. To determine the keyCode you can use the trace line that I have commented out.
Note that when testing in Flash you often need to disable the keyboard shortcuts in the Flash Player in order to be able to use alot of the keys. You will find this option in the Control menu options in the player.

How can I check if a function is or is not called from the event listener? in Flash CS4 (AS3)

Hi,
I came across a little problem.
I put an event listener inside a for loop and the for loop inside a function.
I want the for loop to end as soon as the event listener inside the for loop calls its function.
Here is the general code for a better picture.
Code:
this.addEventListener(Event.ENTER_FRAME, function#1);
function function#1(event:Event):void{
          if(something is true){
                    for(var i = 0; i < numOfmy_mcs; i++){
                              this["my_mc_"+String(i)].addEventListener(MouseEvent.CLICK, function#2);
function function#2(e:Event):void{
//do something cool here
Thank you for any help!

kglad wrote:
that for-loop (if it executes), defines listeners for interactive objects. that will complete long before any object is clicked.
Well yes but it does it again and again (frames per second times seconds = number of times it goes through the code if i'm not mistaken), because it is inside a function, and through testing i found out that it works like this:
Example:
there are 5 my_mc's in my project: (my_mc_0, my_mc_1, my_mc_2, my_mc_3, my_mc_4)
if i click my_mc_0 function#2 is called and executed. BUT only after the loop finishes (i know this from tons of testing)...which is unnecessary since you cannot click two places at once. This might not be a problem in this example because i am only using 5 my_mc's buy if i use 500000000 my_mc's it would make a lot of difference.
is there a way to stop the loop if the function is called?
...maybe there is a better way to write it, the only alternative i know that works is if i manually write every single listener and this also is logical in this example but as i said next to impossible if the numbers get bigger.
-Note
I didn't specify this earlier but function#2 makes the if statement false so it wont jump back into it.
Thank you for the help I really appreciate it!
3rd edit...don't know what's wrong with me

How to send the Event Listener arguments in AS3?

In MXML
<mx:Button click="clickHandler();"
mouseDown="downHandler(event);" mouseOver="overHandler(btn);"
mouseMove="moveHandler('RAJAN');"/>
but AS3
var btn:Button = new Button();
btn.addEventListener(MouseEvent.CLICK, clickHandler, flase,
0, true);
only this kind of AS3 event only added, any other possibility
to pass the arguments to handler function.
please help.

From that link:
If you define an event listener inline (inside the MXML tag),
you can add any number of parameters as long as the listener
function's signature agrees with that number of parameters.
If you add a listener with the addEventListener() method (in
ActionScript), you cannot pass any additional parameters to the
listener function, and that listener function can declare only a
single argument, the Event object (or one of its subclasses).
To pass additional parameters to listener functions defined
in AS, you must define the parameters in the listener function and
then call some other method passing it the additional parameters in
the call from the listener.
You can also define your own custom events, and then you are
free to define what args your event listeners take, and access the
data from the event object.

In servlet what Event Listener interface defines session will passivate()

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