Call of a method from x users

I have a class A with a public method B on a server
Users access this particular method via RMI.
The question:
If the Users called the method B (at the same time) from the same instance of A, did they use the same method or a separate one.
One "instance" of the method for each user's call or only one on the server's stack for everyone.

Same method, different stacks

Similar Messages

How to call a bean method from javascript event

Hi,
I could not find material on how to call a bean method from javascript, any help would be appreciated.
Ralph

Hi,
Basically, I would like to call a method that I have written in the page java bean, or in the session bean, or application bean, or an external bean, from the javascript events (mouseover, on click, etc...) of a ui jsf component. I.e., I would like to take an action when a user clicks in a column in a datatable.
Cheers,
Ralph

How to call a set method from within a constructor

Hello,
I want to be able to call a set method from within a Scanner, to be used as the argument to pass to the Scanner (from a source file). Here's what i tried:
private void openFiles()
        input = new Scanner( setSource );
    and here is the set method:
public String setSource( String in )
        source = in;
        return source;
    }obviously there will be more code in this method but i'm trying to tackle one problem at a time. Thanks in advance..

The "String in" declaration says: "Nobody may ever invoke setSource() without specifying a certain String. The content of the String is known at run-time only."
In no place in your code you say the compiler: "I want the 'in' variable (actually, parameter) of method setSource() to contain the first arg which is passed to the application".
This is exactly the same mechanism allowing you to write "new Scanner" with something inside the two parentheses.

Getting error while calling ejb business methods from servlet

Hi
Iam getting error when i try to call a ejb method from servlet.Error is
"com.netscape.server.eb.UncheckedException: unchecked exception nested exception is:java.lang.NullPointerException".
I build the application and deployed it successfully.Iam using IAS 6.O with windows NT 4.0.
This is just a method which takes values from database and return as an array of bean to servlet.
Any help on this.Thanks Shank

Hi
I was using the session bean.Your suggestion helped me a lot.Perfect.
I debug my program and found that from ejbCreate()exception is getting.
I was getting the datasource object thro ejb create() initialisation.
Somehow the look up jndi which i mentioned was not interpretting from ejb-jar.xml ias-ejb-jar.xml and datasource ref .Due to this iam getting jndi Namenotfound exception which in turns to null pointer as datasource is getting null.
when i hardcoded in the ejb the the jndi name for datasource it is working fine.Bit worried all the existing ejbs working with the xml referenced datasource and jndi,but when i added a new ejb with same properties it is failing to get the jndi name.
Piece of code from ias-ejb-jar.xml
<resource-ref>
          <res-ref-name>myDataSource</res-ref-name>
          <jndi-name>jdbc/nb/myData</jndi-name>
</resource-ref>
Piece of code from ejb-jar.xml
<resource-ref>
          <res-ref-name>myDataSource</res-ref-name>
          <res-type>javax.sql.DataSource</res-type>
          <res-auth>Container</res-auth>
</resource-ref>
Thanks a lot meka

Call a Webservice method from DotNetApplication

Hi all,
I have created One web service using Axis. My WebServices are below:
import java.util.*;
public class NHLService {
HashMap standings = new HashMap();
public NHLService() {
    // NHL - part of the standings as per 04/07/2002
    standings.put("atlantic/philadelphia", "1");
    standings.put("atlantic/ny islanders", "2");
    standings.put("atlantic/new jersey", "3");
    standings.put("central/detroit", "1");
    standings.put("central/chicago", "2");
    standings.put("central/st.louis", "3");
public String getCurrentPosition(String division, String team) {
    String p = (String)standings.get(division + '/' + team);
    return (p == null) ? "Team not found" : p;
}Its name is NHLService.jws. Then I run this service in my localhost like this "http://localhost:8080/axis/NHLService.jws" It is running and show that
There is a Web Service here
Click to see the WSDL Now I can view the wsdl. Now I want to call this webservice method from DotNet Application.Please any one knows that can you guide me the steps.
Thanks in Advance,
Raj

but i don't understand a thing...
when i create a static stub client i link with the config-wsdl file the path of my webservices wdsl and the client compile and run well...
why with the servlet i had to link .class file or jar file??
thanks a loto

How to call an ejb method from jsp?

Hi, everyone!
Inside my JSP, I4m using scripts in order to show and receive information, that is, a form.But I don4t Know if I can use the same variables from the script in order to call the 'set' methods from my EJB.
Could anyone show me an example?
Thanks in advance,
Silvia

InitialContext ctx = new InitialContext();
     GeneralEditor editor = (GeneralEditor) ctx
                    .lookup("GeneralEditorBean/remote");
          GeneralService service = (GeneralService) ctx
                    .lookup("GeneralServiceBean/remote");
          LanMu lm = new LanMu();
          lm.setName("shdfkhsad");
          editor.add(lm);

Calling a service method from a DataAction

Hello!
I'm trying to call a service method from a DataAction, cobbling ideas from the Oracle JDeveloper 10g Handbook and the Oracle ADF Data Binding Primer.
I have created a service method and exposed it using the client interface node of the application module editor. It is called "process()" and it now appears in the data control palette under MyAppDataControl->Operations (just above the built-in action bindings Commit and Rollback). As part of this procedure, I modified MyAppImpl.java and put the process() method there.
I don't want to call process() by dragging and dropping it onto a Data Action because depending on the outcome, I want to branch to different pages. process() returns an int that will tell me where to branch. Thus, I am trying to call it from an overridden invokeCustomMethod() method of the lifecycle of a DataAction, where I can get the int, create a new ActionForward, and set it in the DataActionContext. (If I'm barking up the wrong tree, let me know!)
So, I need to call MyAppImpl.process() from within the invokeCustomMethod() method of my DataAction. Looking at the class declaration, I noticed that it extends ApplicationModuleImpl. I figure that, if I can get the ApplicationModule, I can cast it to MyAppImpl and call the process() method. Unfortunately, that doesn't work. When I got the application module, I checked the class and it's oracle.jbo.common.ws.WSApplicationModuleImpl. I tried casting it and got a class cast exception.
Here's the code I'm using:
protected void invokeCustomMethod(DataActionContext actionContext) {
BindingContext ctx = actionContext.getBindingContext();
DCDataControl dc = ctx.findDataControl("MyAppDataControl");
log.debug("invokeCustomMethod(): dc.getClass().getName()=" + dc.getClass().getName()); // result is: oracle.jbo.uicli.binding.JUApplication
ApplicationModule am = null;
MyAppImpl myAppImpl = null;
int processResult = 0;
if (dc instanceof DCJboDataControl) { // this is true
am = dc.getApplicationModule();
log.debug("invokeCustomMethod(): am.getClass().getName()=" + am.getClass().getName()); // result is: oracle.jbo.common.ws.WSApplicaitonModuleImpl
if (am instanceof ApplicationModuleImpl) { // this is false
log.debug("invokeCustomMethod(): am is an instanceof ApplicationModuleImpl.");
if (am instanceof MyAppImpl) { // this is false
log.debug("invokeCustomMethod(): am is an instanceof MyAppImpl.");
processResult = ((MyAppImpl)am).process();
log.debug("invokeCustomMethod(): processResult=" + processResult);
super.invokeCustomMethod(actionContext);
What am I doing wrong? Can anyone explain the different class hierarchies and why my application module isn't the class I'm expecting?
Thanks,
-Anthony Carlos

Georg,
it was in the javadoc of oracle.adf.model.binding.DCBindingContainer
http://www.oracle.com/webapps/online-help/jdeveloper/10.1.2/state/content/vtTopicFile.bc4jjavadoc36%7Crt%7Coracle%7Cadf%7Cmodel%7Cbinding%7CDCBindingContainer%7Ehtml/navId.4/navSetId._/
However, I see it's not the case in other sub-classes of JboAbstractMap like DCControlBinding and DCDataControl.
Weird... I'm keeping you informed if I find more information.
Regards,
Didier.

Call enhancement class method from Bus. workflow task

Hi all,
I recently enhanced a global class from SAP (add a new method). Now I would like to call it from a workflow task (ABAP Class object used in the task). So it seems that only "native" methods from the class itself can be selected for the object method of the task.
Same issue if I try to call it via secondary methods options...
Last idea I have before the repair is: retrieve the instance saved into the WF container via a custom class interfacing IF_IFS_SWF_CONTAINER_EXIT (program exit) and call the enhanced method from the method proposed in this interface.
Maybe someone had the same issue? Anyone could help or propose solution?
Many thanks in advance for your help,
KR,
Olivier

I think it might qualify for an OSS message.
There was simmilar note for BADIs which was corrected: https://service.sap.com/sap/support/notes/1156392
CL_SWF_UTL_DEF_SERVICES which is used in PFTC to determine callable methods doesn't include enhancements when calling function SEO_CLASS_TYPEINFO_GET (parameter WITH_ENHANCEMENTS is default FALSE)

How to call jpf controller method from javascript

Can any one help me how to call pageflow controller method from JavaScript.\
Thanks.

Accessing a particular pageflow method from Javascript is directly not possible unless we do some real funky coding in specifying document.myForm.action = xyz...Heres what I tried and it did not work as expected: I found another workaround that I will share with you.
1. In my jsp file when I click a button a call a JavaScript that calls the method that I want in pageflow like this: My method got invoked BUT when that method forwards the jsp, it lost the portal context. I saw my returned jsp only on the browser instead of seeing it inside the portlet on the page of a portal. I just see contents of jsp on full browser screen. I checked the url. This does make the sense. I do not see the url where I will have like test1.portal?_pageLabe=xxx&portlet details etc etc. So this bottom approach will notwork.
document.getElementById("batchForm").action = "/portlets/com/hid/iod/Batches/holdBatch"; // here if you give like test1.portal/pagelable value like complete url...it may work...but not suggested/recommended....
document.getElementById("batchForm").submit;
2. I achieved my requirement using a hidden variable inside my netui:form tag in the jsp. Say for example, I have 3 buttons and all of them should call their own action methods like create, update, delete on pageflow side. But I want these to be called through javascript say for example to do some validation. (I have diff usecase though). So I created a hidden field like ACTION_NAME. I have 3 javascript functions create(), update() etc. These javascripts are called onclick() for these buttons. In thse functions first I set unique value to this hiddent field appropriately. Then submit the form. Note that all 3 buttons now go to same common action in the JPF. The code is like this.
document.getElementById("ACTION_NAME").value = "UPDATE";
document.getElementById("batchForm").submit.
Inside the pageflow common method, I retriev this hidden field value and based on its value, I call one of the above 3 methods in pageflow. This works for me. There may be better solution.
3. Another usecase that I want to share and may be help others also. Most of the time very common usecase is, when we select a item in a drop bos or netui:select, we want to invoke the pageflow action. Say we have 2 dropdown boxes with States and Cities. Anytime States select box is changed, it should go back to server and get new list of Cities for that state. (We can get both states and cities and do all string tokenizer on jsp itself. But inreality as per business needs, we do have to go to server to get dynamic values. Here is the code snippet that I use and it works for all my select boxes onChange event.
This entire lines of code should do what we want.
<netui:anchor action="selectArticleChanged" formSubmit="true" tagId="selectPropertyAction"/>
<netui:select onChange="document.getElementById(lookupIdByTagId('selectPropertyAction',this )).onclick();" dataSource="pageFlow.selectedArticleId" >
<c:forEach items="${requestScope.ALL_ARTICLE}" var="eachArticle">
<%-- workshop:varType="com.hid.iod.forms.IoDProfileArticleRelForm" --%>
<netui:selectOption value="${eachArticle.articleIdAsString}">${eachArticle.articleItemName}</netui:selectOption>
</c:forEach>
</netui:select>
See if you can build along those above lines of code. Any other simpler approches are highly welcome.
Thanks
Ravi Jegga

How to call backing bean method from java script

Hi,
I would like to know how to call backing bean method from java script.
I am aware of serverListener and [AjaxAutoSuggest article|http://www.oracle.com/technology/products/jdev/tips/mills/AjaxAutoSuggest/AjaxAutoSuggest.html]
but i am running in to some issues with [AjaxAutoSuggest article|http://www.oracle.com/technology/products/jdev/tips/mills/AjaxAutoSuggest/AjaxAutoSuggest.html]
regarding which i asked for help in other thread with subject ....Question on AjaxAutoSuggest article (Ajax Transactions Using ADF and J...)
The reason why i posted is ( though i realise both are duplicates) .. that threads looks as a specific question to that article hence i would like to ask the quantified problem is asked in this thread.
So could any please letme know how to call backing bean method from java script
Thanks
Murali
Edited by: mchepuri on Oct 24, 2009 6:17 PM
Edited by: mchepuri on Oct 24, 2009 6:20 PM

Hello,
May know how to submit a button autoamtically on onload of page with clicking a welcome alert box. the submit button has managed button too to show a message on console using SOP.
the problem is.
1. before loading the page a javascript comes on which i clicked ok
2. the page gets loaded and the button is there which gets automatically clicked and the managed bean associated with prints a message on console using SOP.
I m trying to do this through server listener and click listener. the code is(adf jspx page)
<?xml version='1.0' encoding='UTF-8'?>
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.1"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:af="http://xmlns.oracle.com/adf/faces/rich">
<jsp:directive.page contentType="text/html;charset=UTF-8"/>
<f:view>
<af:document id="d1" binding="#{backingBeanScope.backing_check4.d1}">
<af:form id="f1" binding="#{backingBeanScope.backing_check4.f1}">
<af:commandButton text="commandButton 1"
binding="#{backingBeanScope.backing_check4.cb1}"
id="cb1" action="#{beanCheck4.submit1}"/>
<af:clientListener type="click" method="delRow"/>
<af:serverListener type= "jsServerListener"
method="#{backingBeanScope.backing_check4.submit1}"/>
<f:facet name="metaContainer">
<af:resource type ="javascript">
x=confirm("hi");
// if(x){
delRow = function(event){
AdfCustomEvent.queue(event.getSource(), "jsServerListener", {}, false);
return true;
</af:resource>
</f:facet>
</af:form>
</af:document>
</f:view>

</jsp:root>
the backing bean code is -----
public class classCheck4 {
public classCheck4() {
public String submit1() {
System.out.println("hello");
return null;
}

Problem calling a Java Method from C++

hi everyone,
i'm using JNI and i'm trying to call a Java method from C++, this is the code:
SocketC.java
public class SocketC
private native void conectaServidor();
private void recibeBuffer()
System.out.println("HELLO!!!");
public static void main(String args[])
SocketC SC = new SocketC();
SC.conectaServidor();
static {
System.loadLibrary("Server_TCP");
Server_TCP.cpp
char* recibirSock()
     int _flag = 1;
     while(_flag != 0)
          memset(buffer,0,sizeof(buffer));//Et la, celle pour recevoir
          recv(sock,buffer,sizeof(buffer),0);
          printf(" Mensaje del cliente: %s\n",buffer);
          _flag = strcmp(buffer,"salir");
     }//fin while
     return buffer;
void enviarSock()
     int _flag = 1;
     getchar();
     while(_flag != 0)
          memset(buffer,0,sizeof(buffer));//procedimiento para enviar
          printf("\n Escriba: ");
          gets(buffer);
     //     err=scanf("%s",buffer);
          send(sock,buffer,sizeof(buffer),0);
          _flag = strcmp(buffer,"salir");
     }//fin while
}//fin enviarSock
DWORD servicio(LPVOID lpvoid)//
     char *buf;
     printf("\n Cliente aceptado!!!!!\n");
     buf=recibirSock();
     return 0;
JNIEXPORT void JNICALL Java_SocketC_conectaServidor(JNIEnv *env, jobject obj)
//void main()
/*this is the problem i'm calling the method recibeBuffer*/
     jclass cls = env->GetObjectClass(obj);
     jmethodID mmid = env->GetMethodID(cls, "recibeBuffer", "(V)V");
     if (mmid == 0)
          return;
     env->CallVoidMethod(obj, mmid); //llama a Java
     WSAStartup(MAKEWORD(2,0),&wsa);//MAKEWORD dit qu'on utilise la version 2 de winsock
     printf("TCP conexion Sockets\n\n");
     //estimez vous heureux que je foute pas de copyright ;)
     system("TITLE TCP Conexion Sockets (Version server)");
     //fo avouer que c'est plus joli
     int port;
     printf("Port : ");//On demande juste le port, pas besoin d'ip on est sur un server
     scanf("%i",&port);
     sinserv.sin_family=AF_INET;     //Je ne connais pas d'autres familles
     sinserv.sin_addr.s_addr=INADDR_ANY;//Pas besoin d'ip pour le server
     sinserv.sin_port=htons(port);
     server=socket(AF_INET,SOCK_STREAM,0);//On construit le server
     //SOCK_STREAM pour le TCP
     bind(server,(SOCKADDR*)&sinserv,sizeof(sinserv));
     //On lie les parametres du socket avec le socket lui meme
     listen(server,SOMAXCONN);//On se met � �couter avec server, 0 pour n'accepter qu'une seule connection
     printf(" Servidor conectado.");
     while(1)
          sinsize=sizeof(sin);
          if((sock=accept(server,(SOCKADDR*)&sin,&sinsize))!=INVALID_SOCKET)
          {//accept : acepta cualquier conexion
               if (hReadThread = CreateThread (NULL, 0, (LPTHREAD_START_ROUTINE)
               servicio, 0, 0, &dwThreadID))
                    printf("\nHOLA!");
                    GetExitCodeThread(hReadThread,&dwExitCode);
                    CloseHandle (hReadThread);
               else
                    // Could not create the read thread.
                    printf("No se pudo crear");
                    exit(0);
when i'm running the proyect i get this error:
C:\POT Files\UCAB\tesis\esmart\french>java SocketC
Exception in thread "main" java.lang.NoSuchMethodError: recibeBuffer
at SocketC.conectaServidor(Native Method)
at SocketC.main(SocketC.java:16)
i don't know why this is happening i got declare the method recibeBuffer in my SocketC.java class, but doesn;t work can anyone help me?
PD: sorry for my bad english i'm from Venezuela

Next time please paste your code between [code] tags with the code button just above the edit message area.
To answer your question, you wrote the wrong method signature. It should be:jmethodID mmid = env->GetMethodID(cls, "recibeBuffer", "()V");Regards

Calling view controller method from component controller method

Hi,
Is there any way to call view controller method from component controller method?
Thanks,

Hi Khandal.
You should not make you component controller dependent from a view controller.
But what you can do is to define an event in the component controller. The view
controller can register for this event.
In the stage where you currently want to call the view controller method just fire
the event. In the event handler method in the view controller you can call the
method then.
Why do you need to call a view controller method? Can you give more details
about the scenario?
Cheers,
Sascha

Calling a servlet method from another class

hi...
if i make a servlet (that keeps the log for website users' logins and logouts, for example) and i want a method that adds an entry into a logfile, for example:
public void log(String line) {
//put "line" into some log file...
and then i set this servlet to loadonstartup, how can i call the log() function from other classes or servlets? can i do it without making the servlet an entry in servletContext?
im sorry if i'm not being very clear, the caffeine's getting to me...
thanks
lazlo

I don't know, why would you do that anyway? Just make an ordinary class, not a servlet, and make "log" a static method in that class. (If you need initialization, use a static initializer.) Put that class where the real servlet can see it and call it from there.

Calling backing bean method from HttpSessionListener

Hi,
I am detecting session expiration through HttpSessionListener's sessionDestroyed() method. I have a logout() method in my backing bean which does all the session clean up. If the user clicks the logout link, then I call the logout method and do the clean up. But when the user closes the browser, then I believe that the HttpSessionListener's sessionDestroyed() method will be called. How do I call the logout() method of my backing bean from from sessionDestroyed() method of HttpSessionListener.

I did as you said, but the finalize method is never called. I can see the session timing out and sessionDestroyed() method being called, but not the finalize() method. Here is the code for sessionDestroyed()
    public void sessionDestroyed(HttpSessionEvent sessionEvent){
        System.out.println("Session Destroyed Called");
        HttpSession session = sessionEvent.getSession();
        session.invalidate();
        System.gc();
    }and for finalize()
    public void finalize() throws Throwable{
        System.out.println("In Finalize Method");
        FacesContext ctx = FacesContext.getCurrentInstance();
        Object requestObject = ctx.getApplication().getVariableResolver().
                               resolveVariable(ctx, "databaseCon");
        DatabaseCon databaseCon = (DatabaseCon) requestObject;
        Connection con = databaseCon.getConnection();
        String sql = "DELETE FROM TEMP WHERE EX_ID = ?";
        PreparedStatement pstmt = con.prepareStatement(sql);
        pstmt.setInt(1,this.getExId());
        pstmt.executeUpdate();
        super.finalize();
    }

Call view's method from component_controller

Hello,
I need to call a view's method from a component controller.
Does anybody know how this can be done?
Thank you.

Hello,
Thanks for the info.
In this case. If I have a button on my ALV that takes a user to a different view how would that work?
Navigation is done using plugs. ALV is initialized in COMPONENT_CONTROLLER and it does no not have plugs. Would I have to create an object of a view where ALV is initialized and than call FIRE_TO_XXXXX_PLG method?
Thank you.

Call of a method from x users

Similar Messages

Maybe you are looking for