Problems deployment servlet and ejb

Hello,
          I'm Having the following problem hopefully someone can help me.
          I'm working in a visualcafe 4.5 project and I have to external jar
          files
          one containing an EJB the other cotaining some classes.
          testservlet.war : deployed by VC
          ejb.jar
          xxx.jar
          Deploying from VC is no problem but when I want to start the
          server it can not find some classes which are in the xxx.jar file
          containing the classes. But when I open the xxx.jar I see that they
          are located in WEB-INF/classes.
          My first Idea is that it could be a classloader problem
          In the startweblogic.cmd I add the testservlet.war to the classpath
          (Project options)
          In the ejbc additional classpath entrys of the testservlet.jar I add
          the xxx.jar.
          In the server additional classpath I added both ejb.jar and the
          xxx.jar
          can someone tell me where it is going wrong???
          Thanks
          Oskar

Depoly them both in an EAR file. You will have to edit the Class-Path: property in each of the MANIFEST.MF files to make the proper path to the Singleton visible to all three, as well.

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Say your stub is in a jar called stub.jar.
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I am trying to deploy a simple EJB on the 8.1.5. The bean only owns a single method that needs a unique parameter.
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Compilation errors in oracle/aurora/ejb/gen/test_myFluxInsert/EjbObject_FluxInsert:ORA-29535: source requires recompilationjava/lang/Object: Authorization error for referenced class Oracle/xml/parser/v2/XMLDocument.java/lang/Object: Authorization error for referenced class oracle/xml/parser/v2/XMLDocument.oracle/aurora/ejb/gen/test_myFluxInsert/EjbObject_FluxInsert:50: Class oracle.xml.parser.v2.XMLDocument not found in type declaration.
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GH

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Serializable.
2. Place whatever you want to pass inside
this class.
3. Now use the new class as your parameter.
eg.
public class Params implements java.io.Serializable {
String p1;
XmlDocmuent xdoc;,
etc, etc
Your program now have to use the class Params for parameter passing.
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null

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Hi,
I think that the subject explain my problem.
I have Oracle IAS9i 9.0.2.0.0, and JDeveloper 9.0.2.829
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Thanks and cheers
P.D The app server and jdeveloper are in the same net.
if it is posible replys me to [email protected] too.

Steps to access a remote EJB from within OC4J
++++++++++++++++++++++++++++++++++++++++++++++
1) Deploy EJB application (ApplicationRemote) to remote container (REMOTE)
"java -jar admin.jar -deploy ormi://REMOTE.hostname:REMOTE.port REMOTE.username REMOTE.password -deploy -file ApplicationRemote.ear
-deploymentName ApplicationRemote"
2) Ensure that local application (ApplicationLocal) has ejb-ref tags for remote EJBs accessed (in web.xml or ejb-jar.xml)
3) Deploy to local container (LOCAL) an empty application (ApplicationEmpty) with the same name as the remote application (ApplicationRemote)
"java -jar admin.jar -deploy ormi://LOCAL.hostname:LOCAL.port LOCAL.username LOCAL.password -deploy -file ApplicationEmpty.ear -deploymentName
ApplicationRemote"
5) Deploy local application (ApplicationLocal) to local container (LOCAL)
"java -jar admin.jar -deploy ormi://LOCAL.hostname:LOCAL.port LOCAL.username LOCAL.password -deploy -file ApplicationLocal.ear -deploymentName
ApplicationLocal"
4)Restart local container
ApplicationEmpty should consist of just an application.xml file - no modules. The same file can be deployed with different application names for all the remote
applications that must be accessed.
ApplicationLocal should access the remote EJB by using the following JNDI properties
java.naming.factory.initial = "com.evermind.server.rmi.RMIInitialContextFactory"
java.naming.provider.url = "ormi://REMOTE.hostname:REMOTE.port/ApplicationRemote"
java.naming.security.principal = "REMOTE.username"
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regards
Debu Panda

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Hi,
Have a few queries. Appreciate any quick answers.
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I think not. Am I correct?
(b) Is the bean/EAR deployed at module level? Is there a setting for this - is it at bean deployment descriptor? Where can I find this?
If (say) I need to update an EJB, do I un-deploy, update and re-deploy it?
Or must I restart the entire WLS container?

--> An EAR includes one or more EJB files. You don't need to specify the location because it's contained at application.xml file inside the EAR.
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Can code outside EJBs, Servlets and JSPs have access
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For example, in a web application, web.xml has a
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I'm not an EJB expert but this explanation should give you some idea of what EJBs are all about.

Servlets and EJBs

Hi,
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Regards
Krzysztof

I am not that good with EJB , but I donot think so
EJB Local interfaces only work from othe EJB's AFAIK,

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Could someone tell me if this is possible? (my syntax might be a bit off, but bear with me. It's the design I'm interested in, not the exact syntax)
signature="java.util.Collection findByFullMonty (java.lang.Float price, java.lang.Integer bedrooms... "*snip*
query="SELECT OBJECT(o) FROM Houses o WHERE ((o.price =?1) AND (o.bedrooms= ?2) AND ... "*snip*I'd like to be able to use this query with wildcards as default values in a fashion similiar to this:
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Integer bedrooms = ??; // same here for Integer....
String realtorName = "*"; //i think this is valid wildcard for strings
*snip*
//if price supplied set price to input value
if (myObject.getPrice() != null){
price = myObject.getPrice();
//if bedrooms supplied set bedrooms to input value
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Collection c = findByFullMonty (price, bedrooms, realtorName, *snip*); What i'm tyring to achieve is a single query that will work no matter how many of the input paramaters are supplied. Any supplied parameters are used, and those that are not supplied will use wildcard instead. I don't want to make a seperate query for every possible permutaion of supplied input parameters. Can this be done? If so, am I even close or out in left field? Is there a design pattern I should look into for this problem?
Thanks for any help guys!
(sorry for the cross-post, i didn't realize this was the approprate place until afterwards)

Yes, that makes sense, but the EJB-QL statements and finder methods in the home interface have to be defined at deployment time, correct? Once it is deployed, I can't dynamically create the EJB-QL statements and finder methods that are needed. That's the major hurdle I have right now.
Populating a big 'catch-all' query with wild cards and replacing them with supplied literal values is the only way I could think of to accomplish this dynamically. In my current work around I set a flag for each piece of data supplied. I then decide which (pre-defined) query is needed based on the supplied criteria flags. The problem is, I now have to have 2^n (n = number of possible input parameters) permutaions for the possible queries. For example: say i have: price, bedrooms and bathrooms. I'd need queries for the following cases:
1 price supplied only
2 bedrooms supplied only
3 bathrooms supplied only
4 price and bedrooms
5 price and bathrooms
6 bedrooms and bathrooms
7 price, bedrooms, bathrooms
8 nothing supplied (return everything)
Obviously this is going to break down really fast as the number of input parameters climbs.
Should I look at using some kind of JDBC code directly to build a query as I go? It seems like I am either approaching this the wrong way or missing something really obvious.

Problems deploying a simple EJB on Weblogic 8.1 using JDeveloper

Hey guys,
Title says it all. First I had one problem in that I could not test the connection to the Weblogic server. I moved the weblogic.jar file into the lib/ext folder and that test worked then. After that I wrote the EJB...a very simple one...and I followed the http://dev2dev.bea.com/pub/a/2006/01/wls-jdeveloper.html?page=1 tutorial so far. But when it came time to deploy the ejb to the server, I am getting this funky error:
ERROR: ejbc found errors while processing the descriptor for C:\oracle\jdeveloper\jdev\mywork\WeblogicApp\EchoEJB\deploy\ejb1.jar:
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Honestly I am confused now...any one encounter that error?
Thanks for all replies.
Cheers

So I added the DOCTYPE and now I get another error. And that is as follows:
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Thanks in advance for any help. If I am doing something silly please point it out so I can learn!
Cheers,
Surya

Servlets and EJBs in weblogic 5.1

          Me somebody can say like communicating servlet that this in a machine with Weblogic 5,1 with a EJB in another machine also with weblogic5.1
          When trying gives it to me Comunication Exception .
          But if I have the 2 in the same machine it works well


We have the same scenario and had the same CommunicationException.
          We had the remote & home interfaces of the ejb and the helper classes
          avaliable
          to the server#1 , and still encountered the following CommunicationException
          Tue Feb 06 17:53:54 GMT+05:30 2001:<I> <ServletContext-General>
          scripInfoServletWAP25:
          ScripInfoServlet.init()javax.naming.CommunicationException [Root exception
          is weblogic.rmi.UnmarshalException: Unmarshalling return
           - with nested exception:
          [java.lang.ClassNotFoundException: class
          ITS.beans.order.ScripInfoSessionEJBHomeImpl_ServiceStub previously not
          found]]
          Tue Feb 06 17:53:54 GMT+05:30 2001:<E> <ServletContext-General> Servlet
          failed with Exception
          javax.servlet.ServletException: javax.naming.CommunicationException [Root
          exception is weblogic.rmi.UnmarshalException: Unmarshalling return
          - with nested exception:
          [java.lang.ClassNotFoundException: class
          ITS.beans.order.ScripInfoSessionEJBHomeImpl_ServiceStub previously not
          found]]
          at ITS.wap.ScripInfoServletWAP25.init(ScripInfoServletWAP25.java:83)
          at
          weblogic.servlet.internal.ServletStubImpl.createServlet(ServletStubImpl.java
          :390)
          at
          weblogic.servlet.internal.ServletStubImpl.createInstances(ServletStubImpl.ja
          va, Compiled Code)
          at
          weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.jav
          a:338)
          at
          weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.java:16
          4)
          at
          weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
          :99)
          at
          weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
          l.java:742)
          at
          weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImp
          l.java:686)
          at
          weblogic.servlet.internal.ServletContextManager.invokeServlet(ServletContext
          Manager.java:247)
          at
          weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:361)
          at weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:261)
          at weblogic.kernel.ExecuteThread.run(ExecuteThread.java, Compiled Code)
          Only when the jar file was made available to the server#1(i.e. present in
          weblogicclasspath but not deployed) was the servlet on server#1 able to call
          the ejb on server#2.
          When calling the ejb through a Java Application or through a servlet
          deployed on the same server as the ejb,
          the stub classes are not required to be specified in the weblogicclasspath.
          Has anybody else encountered a similar situation?
          Thanks in advance.
          Aparna
          "Cameron Purdy" <[email protected]> wrote in message
          news:[email protected]...
          > You can have a Servlet on server #1 talk to an EJB on server #2. It is
          > accomplished by having the client classes for the EJB available to the
          > Servlet on server #1 and using JNDI on server #1 to get initial context
          for
          > server #2 and using that to look up the EJB.
          >
          > (Sorry, no habla espanol.)
          >
          > --
          > Cameron Purdy
          > Tangosol, Inc.
          > http://www.tangosol.com
          > +1.617.623.5782
          > WebLogic Consulting Available
          >
          >
          > "Javier Fdez" <[email protected]> wrote in message
          > news:[email protected]...
          > >
          > > Me somebody can say like communicating servlet that this in a machine
          with
          > Weblogic 5,1 with a EJB in another machine also with weblogic5.1
          > > When trying gives it to me Comunication Exception .
          > > But if I have the 2 in the same machine it works well
          >
          >

Problems with servlets and packages

"im trying to use a package called C:\Acme which includes a GifEncoder C:\Acme\JPM\Encoders the problem is that weblogic 6.1 doesnt seem to find it, this is the error i get in the console
          <Dec 8, 2001 2:46:20 PM PST> <Error> <HTTP> <[WebAppServletContext(1074531,learning,/learning)] Se
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          at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:600)
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          at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:242)
          at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200)
          at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:
          2456)
          at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2039)
          at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
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          >
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See if there's an Acme.jar - if so, add that to your classpath...
          Hope this helps
          Rob
          "isaac" <[email protected]> wrote in message
          news:[email protected]...
          > "im trying to use a package called C:\Acme which includes a GifEncoder
          C:\Acme\JPM\Encoders the problem is that weblogic 6.1 doesnt seem to find
          it, this is the error i get in the console
          >
          > <Dec 8, 2001 2:46:20 PM PST> <Error> <HTTP>
          <[WebAppServletContext(1074531,learning,/learning)] Se
          > rvlet failed with ServletException
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          not be resolved - a clas
          > s upon which this class depends wasn't found
          > at
          weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.jav
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          weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.java:36
          8)
          > at
          weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
          :242)
          > at
          weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
          :200)
          > at
          weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletCo
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          > 2456)
          > at
          weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java
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          > at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
          > at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
          > >
          >
          > and i have included the following in the classpath, in the path and in the
          .cmd file that starts weblogic
          >
          > C:\Acme;C:\Acme\JPM\Encoders;C:\Acme\JPM;C:\bea\

Co-location optimization between servlet and ejb?

Find some similar posting in archive, but answers confused me.
If I implement a sesion bean in WL6.1 with remote interfaces and call that session bean from the web tier (i.e. servlet) that is located in the same WL server, will co-location optimization occur.
Some previous posting suggested optimization only occurs within the same classloader. My understanding is servlet have a different class loader than the EJB.
So will co-location optimization still occur?
Thanks
Joe Wroblewski

"Joe Wroblewski" <[email protected]> wrote in message news:32319370.1096294137900.JavaMail.root@jserv5...
Find some similar posting in archive, but answers confused me.
If I implement a sesion bean in WL6.1 with remote interfaces and call that session bean from the web tier (i.e.servlet) that is located in the same WL server, will co-location optimization occur.
>
Some previous posting suggested optimization only occurs within the same classloader. My understanding is servlethave a different class loader than the EJB.
>
So will co-location optimization still occur?In case of a servlet you will have co-location optimization if the ejb-jar and the war are in the same ear. Then was
will inherit EJB classsloader. If it's not the case, pass-by-reference is not possble.
Regards,
Slava Imeshev

Problem with servlet and application program

i have this error appearing in my browser...
i have this feeling it is about the application, but if application alone, i now having some trouble running it, once i bind it with an applet i always have this message:
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
java.lang.NullPointerException
     exString.triming(exString.java:12)
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     forplay.play(forplay.java:9)
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     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     org.apache.catalina.servlets.InvokerServlet.serveRequest(InvokerServlet.java:419)
     org.apache.catalina.servlets.InvokerServlet.doGet(InvokerServlet.java:133)
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i know this is a simple problem...
how come my application is having some difficulty in running my application...
this servlet by the way is a get parameter base...

Its caused cuz ur exString is null..
rgds
shanu

Again problem with servlet and Tomcat

My files are:
webapps\greeting\src\GreetingServlet.java
................\index.html
................\WEB-INF\classes\GreetingServlet.class
........................\web.xml
Url:http//:localhost:8080/greeting/ shows index.html but when i submit
it showing
HTTP Status 404 - /greeting/servlet/GreetingServlet
type: Status report
message: /greeting/servlet/GreetingServlet
description: The requested resource (/greeting/servlet/GreetingServlet) is not available.
Source code:
1.index.html:
<HTML>
     <HEAD>
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     </HEAD>
     <BODY>
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          <FORM ACTION ="/greeting/servlet/GreetingServlet" METHOD= "POST">
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               <p>Your Email <INPUT TYPE= "text" SIZE= "40" NAME="email">
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     </BODY>
</HTML>
2.GreetingServlet.java:
import javax.servlet.* ;
import javax.servlet.http.* ;
import java.io.* ;
import java.util.* ;
public class GreetingServlet extends HttpServlet{
protected void doPost (HttpServletRequest request,
               HttpServletResponse response)
                    throws ServletException, IOException {
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     out .println("<BODY>");
     out .println("<p>"+message +","+name+"</p>");
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     out .println("</BODY>");
     out .println("</HTML>");
     out .close();
Please help me
Thanks in advance Also thanks to st.

Hi,
I think you have to change server.xml, which is in conf directory of your tomcat root directory.
search context in server.xml
and alter like this
<Context path="/greetings" docBase="greetings" debug="0"
reloadable="true" crossContext="true">
Hope this will help
Regards
Sekhar

Problems deployment servlet and ejb

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