Application scope java beans not behaving....

I am using WL 5.1, sp8, on NT....
          I am running jsp code that declares java beans of application scope....
          However, it doesn't appear to be resolving the application scope
          properly, it seems to instantiate a new Bean each time I go to
          a new page within the same application....
          One thing I am not clear on, is whether I have properly configured
          the WebApp....I have just been assuming that all pages within
          the same path sub-directory are of the same application, but that
          doesn't appear to be working....
          I haven't found any weblogic.properties settings for defining WebApps,
          that will share application scope, etc....
          I assume there is a simple answer here, I appreciate any help...
          Thanks,
          Jason Rosenberg

Jason,
          WLS 5.1.0 is up to service pack level 12 now, which you should go to
          http://support.bea.com/welcome.jsp and login to download from the "Supports
          Download" section. Note that you need to be a paying customer to see this
          section. After applying sp12 you should take a look at our web app docs
          here http://bernal.beasys.com/release/docs51/classdocs/webappguide.html for
          instructions on setting up a web app and registering it in wls 5.1.
          "Jason Rosenberg" <[email protected]> wrote in message
          news:[email protected]...
          > I am using WL 5.1, sp8, on NT....
          >
          > I am running jsp code that declares java beans of application scope....
          >
          > However, it doesn't appear to be resolving the application scope
          > properly, it seems to instantiate a new Bean each time I go to
          > a new page within the same application....
          >
          > One thing I am not clear on, is whether I have properly configured
          > the WebApp....I have just been assuming that all pages within
          > the same path sub-directory are of the same application, but that
          > doesn't appear to be working....
          >
          > I haven't found any weblogic.properties settings for defining WebApps,
          > that will share application scope, etc....
          >
          > I assume there is a simple answer here, I appreciate any help...
          >
          > Thanks,
          >
          > Jason Rosenberg
          >
          >
          >
          >
          >
          >
          >

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'invalid class-java beans not available for import

Hi Experts,
i am using java bean model in my Web Dynpro Application.
for that one i have created command bean(Customer) and in my command bean i am using some other class(CustomerInfo) as reference. this CustomerInfo class contains 4 attribtes(name ,id ,etc all are of type String)
when i try to import these 2 class into web dynpro (using java bean model),for the Customer class it
is giving an error message 'invalid class-java beans not
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any help will be appriciated
Thanks in advance
With Regards
Naidu

Naidu,
Please try to repeat JavaBean model import when running IDE in console mode (correspondign short-cut should be available in Windows Start menu, otherwise just copy original short-cut, edit it and change in command string "javaw" to java).
Post here what is shown on console during import.
VS

Invalid Class -Java Bean not available for import

hai friends,
i have declared the bean but unable to import into webdynpro application
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Hi,
Go thro' these solved threads dealing with similar type of problem,
Import JavaBean Error : Invalid Class
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Regards
Srinivasan T

How to init an application scope backing bean once app server startup?

Hi guys,
I got an application scope backing bean but I don't know how to initialize it once the app server startup ! I need all the webpage to be able to get the 'defaultCountry' value once the app server startup !
<managed-bean>
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<managed-bean-scope>application</managed-bean-scope>
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Pls help, Thanks !
regards,
Mark

write a context listener and set up your web.xml as such
<listener>
<listener-class>com.package.ContextListener</listener-class>
</listener>
Then your class should inmplement ServletContextListener interface.
The 2 methods need to be implemented
public void contextDestroyed(ServletContextEvent sc_event) { }
public void contextInitialized(ServletContextEvent sc_event) { }
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New to Jsp. Jsp and java bean not running

hi
i have created a simple jsp file and using a java bean. but it is showing errors. my file directory structure in tomcat4.1 is:
aptechsamples:
index.jsp
WEB-INF/classes:
myPackage:
Counter.class
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<head><title> A Simple JSP Bean </title></head>
<body>
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Java is already telling you what is wrong: it cannot create an instance of your Counter class. The reason being: it can't find it.
What do you mean by "myPackage"? Before you can use any class in your JSP's or servlets, they MUST be stored in a package. If you don't know what that is, I highly suggest you lookup "java package" and "java classpath" using google.
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WEB-INF/classes/mypackage/Counter.class
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Webutil - java bean not found issue when openning the form another time

Hello,
I have a form which uses webutil and is called from another form (using CALL_FORM), the code runs from the when-window-activated trigger and it works well.
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Hello,
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Java Bean Not Working

i am installing 10.1.2 on redhat3 update 7
When i run my OCIConnectionPool bean or any bean following error occurs
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libgcj-java-placeholder.sh
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at 0x00cd0e7c: ?? (??:0)
at 0x00cd1007: ffi_call_SYSV (/usr/lib/./libgcj.so.3)
at 0x00cd0fc7: ffi_raw_call (/usr/lib/./libgcj.so.3)
at 0x00b7e658: JvInterpMethod.continue1(_Jv_InterpMethodInvocation) (/usr/lib/./libgcj.so.3)
at 0x00b7ef64: JvInterpMethod.run(ffi_cif, void, ffi_raw, JvInterpMethodInvocation) (/usr/lib/./libgcj.so.3)
at 0x00b7c474: JvInterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/./libgcj.so.3)
at 0x00cd0e7c: ?? (??:0)
at 0x00cd1007: ffi_call_SYSV (/usr/lib/./libgcj.so.3)
at 0x00cd0fc7: ffi_raw_call (/usr/lib/./libgcj.so.3)
at 0x00b7e658: JvInterpMethod.continue1(_Jv_InterpMethodInvocation) (/usr/lib/./libgcj.so.3)
at 0x00b7ef64: JvInterpMethod.run(ffi_cif, void, ffi_raw, JvInterpMethodInvocation) (/usr/lib/./libgcj.so.3)
at 0x00b7c474: JvInterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/./libgcj.so.3)
at 0x00cd0e7c: ?? (??:0)
at 0x00cd1007: ffi_call_SYSV (/usr/lib/./libgcj.so.3)
at 0x00cd0fc7: ffi_raw_call (/usr/lib/./libgcj.so.3)
at 0x00b7e658: JvInterpMethod.continue1(_Jv_InterpMethodInvocation) (/usr/lib/./libgcj.so.3)
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at 0x00cd0e7c: ?? (??:0)
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at 0x00b7ef64: JvInterpMethod.run(ffi_cif, void, ffi_raw, JvInterpMethodInvocation) (/usr/lib/./libgcj.so.3)
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at 0x00cd0e7c: ?? (??:0)
at 0x00cd1007: ffi_call_SYSV (/usr/lib/./libgcj.so.3)
at 0x00cd0fc7: ffi_raw_call (/usr/lib/./libgcj.so.3)
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at 0x00b7ef64: JvInterpMethod.run(ffi_cif, void, ffi_raw, JvInterpMethodInvocation) (/usr/lib/./libgcj.so.3)
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Chetan

One way is to change the "break;" line to "return true;" and remove the current "return true;" line. Then move the "return false;" line outside the catch section. It seems whatever you are doing is not throwing an exception, so whatever else it does, it always falls thru to the return true line.

Bean not behaving as expected

OK, I have a JSP running the following script section.
<% irCollection mgrq = new irCollection();
      mgrq.setMgrid("Chris Novish");
      mgrq.populateCollection();
      int pagenum;
      if (request.getParameter("p") != null) {
        String pagedatum=request.getParameter("p");
        pagenum = Integer.parseInt(pagedatum);
      } else { pagenum = 0; }
      for (int i=0;i<10;i++) {
        int rownum = pagenum * 10 + i;
        InquireRecord currec = mgrq.getCurRecords(rownum);
        out.println(currec.getID()); %>irCollection has an ArrayList property that stores a several InquireRecord objects. It gets this data from a database using the mgrid as (set in line 2 there) as the matching term.
But I'm getting an IndexOutOfBounds exception on what appears here as line 11.
I've done some tests, and I'm pretty sure that it's because populateCollection() isn't getting things done. I have a getSize method that gives me a size of 0.
I made a test class in Eclipse to make sure all my methods were working:
package com.serco.inquire;
public class test {
     public static void main (String[] args) {
          String mgr = "Chris Novish";
          irCollection bob = new irCollection();
          bob.setMgrid(mgr);
          bob.populateCollection();
          InquireRecord fred = bob.getCurRecords(1);
          System.out.println(fred.getID());
}That test class produces exactly what I'd expect.
Other than the names of some of the local variables, I can't see what I'm doign different in the JSP.
So... tell me, what noobish mistake did I make?
for the sake of being thorough, here's the populateCollection() method:
public void populateCollection() {
          try {
               Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
               String filename = "inquire.mdb";
               String database = "jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)};DBQ=";
               database+= filename.trim() + ";DriverID=22;READONLY=true}";
               Connection con = DriverManager.getConnection( database ,"","");
               Statement s = con.createStatement();
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               ResultSet rs = s.getResultSet();
               int cur;
               if (rs != null) {
               while (rs.next()) {
                    cur = rs.getRow();
                    cur -- ;
                    int curID = rs.getInt("ID");
                    this.newIR.setID(curID);
                    String cursub = rs.getString("submitter");
                    this.newIR.setSubmitter(cursub);
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               this.pages = this.size / 10;
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                         } else { System.out.println("no records."); }
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     }Edited by: EJP on 21/06/2011 09:15: added {noformat}{noformat} tags. Please use them.

But I'm getting an IndexOutOfBounds exception on what appears here as line 11.Line 11 of what? You've posted three separate pieces of code.
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s.setObject(1, mgrid);
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this.iRecords.add(this.newIR);'newIR' mustn't be a member variable, it should be local, and refer to a newly created instance every time around the loop. At the moment you are overwriting previous elements of 'iRecords'.
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this.pages = (this.size+9)/10;
               if (remain > 0) { this.pages++; }
                         } else { System.out.println("no records."); }Wrong message. If 'remain' is zero there may be any multiple of 10 records. You can remove this entire block: adding 9 above does all you need.

Initializing application scope beans on startup

Hi All,
I need to initialize an application scope managed bean on startup, and not have to wait for it to be referenced the first time.
I was thinking of using ContextListener, but you dont have access to the faces context in the listener.
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Try with FacesContext.getCurrentInstance() or http://www.jsffaq.com/Wiki.jsp?ptitle=How+to+access+FacesContext+from+the+Filter+or+Servlet%3F&page=HowToAccessFacesContextFromTheFilterOrServlet

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Bump

Where to place my java bean files in iplanet Webserver 6.0

Hi,
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Please answer me, i am very much interest on this.
Thank a lot
Regards
- Thilip

Hi,
Thanks for your immediate reply. Still, i am getting the same problem. I have gone through your instruction.
i have placed my jsp file in c:/iplanet/servers/docs folder
i have placed my bean file in c:/iplanet/servers/docs/firstBean folder
Also mentioned in JVM classpath as like this
c:/iplanet/servers/docs/firstBean
But i am getter error msg that firstBean.databaseBean class not found.
Please suggest me to do any other neccessary step ?
Please inform me.
Thanks in advance.
Regards
- Thilip

How to pass a populated Java bean to a jsp

Hi,
I'm new to J2EE world. I want to know how should I pass a populated Java Bean (not EJB) to a JSP without displaying that JSP in the next step. I would be much grateful to anyone who gives a solution to my problem.
Thanks in advance
With best regards
Sampath

> I'm new to J2EE world. I want to know how should I
pass a populated Java Bean (not EJB) to a JSP without
displaying that JSP in the next step.
Urk?
A JSP is meant to be displayed. If there's business logic in that JSP, get it out of there. Process the bean as needed on the server side and send the flow on to some view that actually should be displayed.
~

Importing java Bean Model

hai ,
am new to webdynpro for java ... Am trying to import ejb bean jar to web dynpro ..
Steps as follows
i) copy the bean jar to wd project lib folder
ii) Set classpath
SampleWD - > Model
Model -> create model
Model name : Samplemodel
Model package : com.sample
Local jar file : C:\sap\workspace\SampleWD\lib\addbean.jar -- getting error in this step as Invalid Class - java bean not available for import
can anybody help me ..
Thanks in advance...
regards,
Krish

Hi Krish,
In addition to Madhu's suggestion,
As per the Java Bean Model creation steps, you will need to add the Commanad Bean JAR too in your Project, and while creation of Model, you need to select this Command Bean JAR and not the Bean Project JAR.
Regards,
Alka.

Java Bean Model

Is it possible to create a simple Java Bean (not EJBs) that connect to the data base where I can read/write to it?? And I want to hook it up to Web dynpro (import a java bean model).
Please help!
I have checked countless threads and tutorials, and am unable to put the pieces together.

Hi Sana,
I think following links definitely help you to answer your queries
PPt :-
FEATURED EVENTS
Demo link :-
FEATURED EVENTS
Best Regards,
Anuj

What is java beans?

what is the difference between java application and java beans?
thanks!

Hmm, I'm gonna have a go at this - hopefully someone will build on it with more differences or requirements:
A Java Bean is merely a Java class written to conform to some simply rules for construction and method naming eg:
public class MyBean
private String myField;
public MyBean()
public void setMyField(String myField)
this.myField = myField;
public String getMyField()
return myField;
}Applications can use Java Beans without having to know about the class in advance - a typical situation might be their use in visual GUI editors where the properties of the bean can be exposed and manipulated by the editor through examination of the method names or an accompanying descriptor.
An Enterprise Java Bean doesn't have all that much in common with a Java Bean. An EJB is a small set of classes meeting a single (usually) business requirement written to conform to the EJB specification. This enables them to be used by J2EE Application servers to perform enterprise business functions (data storage, manipulation, business logic etc.). The whole idea is that by writing to the specification the server can automatically provide support for transaction management, concurrent access, scaleability, etc that a mission-critical system might require without the programmer having to understand the workings of the application server.
Essentially an EJB can either
1) maintain the permanent state of a business object (eg, hold the data for a single product in a catalogue)
2) perform a small set of business operations (eg, place an order for a customer)
3) act in response to messages passed around the system (eg, send a mail to the user when the items have been shipped)
I would have a look at the following two pages to get a better overview:
http://java.sun.com/products/javabeans/
http://java.sun.com/products/ejb/
Hope this helps.

Application scope java beans not behaving....

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