Calling an EJB from Java Mappings in PI 7.1

In my operation mapping, I am using a Java class which in turn invokes an EJB using JNDI lookup.
When I execute the code, the class is successfully finding the EJB using JNDI, but invoking it I am getting a java.lang.NoClassDefFoundError.
If, I add the class it cannot find to the jar containing the Java mapping class, I get a java.lang.ClassCastException.
Has anyone been able to call a custom EJB from with a Java Mapping class?
Any help appreciated.
Thanks.

Hello.
Check my wiki article:
http://wiki.sdn.sap.com/wiki/display/stage/SapNetweaverProcessIntegration.CallEjb3.0methodfromJavaclassmappingPI7.1
(SapNetweaver Process Integration. Call Ejb 3.0 method from Java class mapping PI 7.1 )
Greedings

Similar Messages

Error while running EJB from java client on JBOSS

Hi
As i am new to EJB i have created a helloworld application in ejb which is working fine when i try to call it from servlet but when i try to invoke the same ejb from java client (i.e from diff jvm) on jboss i got the following error:
javax.naming.CommunicationException: Could not obtain connection to any of these urls: localhost:1099 and discovery failed with error: javax.naming.CommunicationException: Receive timed out [Root exception is java.net.SocketTimeoutException: Receive timed out] [Root exception is javax.naming.CommunicationException: Failed to connect to server localhost:1099 [Root exception is javax.naming.ServiceUnavailableException: Failed to connect to server localhost:1099 [Root exception is java.net.ConnectException: Connection refused]]]
 at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java:1399)
 at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:579)
 at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:572)
 at javax.naming.InitialContext.lookup(InitialContext.java:351)
 at com.gl.TestClient.main(TestClient.java:39)
Caused by: javax.naming.CommunicationException: Failed to connect to server localhost:1099 [Root exception is javax.naming.ServiceUnavailableException: Failed to connect to server localhost:1099 [Root exception is java.net.ConnectException: Connection refused]]
 at org.jnp.interfaces.NamingContext.getServer(NamingContext.java:254)
 at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java:1370)
 ... 4 more
Caused by: javax.naming.ServiceUnavailableException: Failed to connect to server localhost:1099 [Root exception is java.net.ConnectException: Connection refused]
 at org.jnp.interfaces.NamingContext.getServer(NamingContext.java:228)
 ... 5 more
Caused by: java.net.ConnectException: Connection refused
 at java.net.PlainSocketImpl.socketConnect(Native Method)
 at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
 at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
 at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
 at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
 at java.net.Socket.connect(Socket.java:519)
 at java.net.Socket.connect(Socket.java:469)
 at java.net.Socket.<init>(Socket.java:366)
 at java.net.Socket.<init>(Socket.java:266)
 at org.jnp.interfaces.TimedSocketFactory.createSocket(TimedSocketFactory.java:69)
 at org.jnp.interfaces.TimedSocketFactory.createSocket(TimedSocketFactory.java:62)
 at org.jnp.interfaces.NamingContext.getServer(NamingContext.java:224)
 ... 5 more
Following is my code:
Home Interface:
package com.gl;
import javax.ejb.CreateException;
public interface testHome extends EJBHome {
 String JNDI_NAME = "testBean";
 public test create()
 throws java.rmi.RemoteException,CreateException;
Remote Interface:
package com.gl;
import java.rmi.RemoteException;
import javax.ejb.EJBObject;
public interface test extends EJBObject {
 public String welcomeMessage() throws RemoteException;
Bean:
package com.gl;
import java.rmi.RemoteException;
import javax.ejb.EJBException;
import javax.ejb.SessionBean;
import javax.ejb.SessionContext;
public class testbean implements SessionBean {
 public void ejbActivate() throws EJBException, RemoteException {
 // TODO Auto-generated method stub
 public void ejbPassivate() throws EJBException, RemoteException {
 // TODO Auto-generated method stub
 public void ejbRemove() throws EJBException, RemoteException {
 // TODO Auto-generated method stub
 public void setSessionContext(SessionContext arg0) throws EJBException,
 RemoteException {
 // TODO Auto-generated method stub
 public void ejbCreate(){}
 public String welcomeMessage(){
 return "Welcome to the World of EJB";
ejb-jar.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd">
<ejb-jar>
<enterprise-beans>
<session>
<ejb-name>testBean</ejb-name>
<home>com.gl.testHome</home>
<remote>com.gl.test</remote>
<ejb-class>com.gl.testbean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Container</transaction-type>
</session>
</enterprise-beans>
</ejb-jar>
jboss.xml:
<?xml version='1.0' ?>
<!DOCTYPE jboss PUBLIC "-//JBoss//DTD JBOSS 3.2//EN" "http://www.jboss.org/j2ee/dtd/jboss_3_2.dtd">
<jboss>
<enterprise-beans>
<entity>
<ejb-name>testBean</ejb-name>
<jndi-name>testBean</jndi-name>
</entity>
</enterprise-beans>
</jboss>
Client code:
package com.gl;
import java.util.Properties;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.rmi.PortableRemoteObject;
public class TestClient {
 public static void main(String[] args) throws Exception{
 try{
 /* Properties props=new Properties();
 props.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
 props.put(Context.URL_PKG_PREFIXES, "org.jboss.naming:org.jnp.interfaces");
 props.put(Context.PROVIDER_URL, "jnp://localhost:1099");
 Properties props = new Properties();
props.put(Context.INITIAL_CONTEXT_FACTORY,
"org.jnp.interfaces.NamingContextFactory");
props.put(Context.PROVIDER_URL, "localhost:1099");
 System.out.println("Properties ok");
 //env.setProperty(Context.INITIAL_CONTEXT_FACTORY,"org.jboss.naming.HttpNamingContextFactory");
 //env.put(Context.PROVIDER_URL,"http://localhost:8080");
 //env.put(Context.SECURITY_PRINCIPAL, "");
 //env.put(Context.SECURITY_CREDENTIALS, "");
 Context ctx=new InitialContext(props);
 System.out.println("context ok");
 //testHome home = (testHome)ctx.lookup("testBean");
 Object obj = ctx.lookup ("testBean");
 System.out.println("ojb = " + obj);
 testHome ejbHome = (testHome)PortableRemoteObject.narrow(obj,testHome.class);
 test ejbObject = ejbHome.create();
 String message = ejbObject.welcomeMessage();
 System.out.println("home ok");
 System.out.println("remote ok");
 System.out.println(message);
 catch(Exception e){e.printStackTrace();}
I am able to successfully deployed my ejb on JBOSS but i m getting above error when i am trying to invoke ejb from java client.
kindly suggest me something to solve this issue.
Regards
Gagan
Edited by: Gagan2914 on Aug 26, 2008 3:28 AM

Is it a remote lookup? Then maybe this will help:
[http://wiki.jboss.org/wiki/JBoss42FAQ]
- Roy

Can I call an EJB from the database?

Hi,
I've just spent the last few days attempting to call an EJB from a stored procedure in a 10g database (and still haven't succeeded).
Now having spent hours searching the web (and this forum) for any successful examples (so far I have found none) I thought I'd add a message to see if there is anybody out there who has done this successfully. If so can you please provide me some details on how to do this?
Alternatively, I'd appreciate any input on how I can overcome my current hurdle in attempting to do this myself.
Here's how far I've got in my attempt:
I have a simple stateless session bean deployed to both Oracle 10gAS (a standalone OC4J container in 10.1.3) and to Weblogic 9. I have a client java class that calls a method on this bean and displays some ouput if successful. This all works from a standalone JVM (version 1.4) on both Weblogic and 10gAS.
I then tried to load the required libraries for Weblogic onto the database (namely the Weblogic.jar file). This resulted in the addition of some 32,000 odd objects of which 30,000 odd could not be resolved. I figured a lot of these may be down to JVM version issues (I believe that Weblogic 9 uses the 1.5 JRE) so I decided to put the Weblogic test on the back burner for now and just use the Oracle app server.
The tests with the Oracle app server looked promising. I only needed a handful of libraries to be loaded onto the database and all the relevant classes required for my test client had resolved (including the initial context factory required to do the jndi lookup of the bean). After granting all the permissions I believed I needed I'd got to the point where I could do a jndi lookup of the EJB; but when I tried to create an instance of the beans remote interface I got the following error:
java.security.AccessControlException: the Permission (java.lang.RuntimePermission getClassLoader) has not been granted to ProtectionDomain (file:generated/by/proxy <no certificates>)
com.evermind.net.DynamicClassLoader@612d9d34
<no principals>
java.security.Permissions@eb0f3c1a (
(java.util.PropertyPermission java.version read)
(java.util.PropertyPermission java.vm.name read)
(java.util.PropertyPermission java.vm.vendor read)
(java.util.PropertyPermission os.name read)
(java.util.PropertyPermission java.vendor.url read)
(java.util.PropertyPermission java.vm.specification.vendor read)
(java.util.PropertyPermission java.specification.vendor read)
(java.util.PropertyPermission os.version read)
(java.util.PropertyPermission java.specification.name read)
(java.util.PropertyPermission java.class.version read)
(java.util.PropertyPermission file.separator read)
(java.util.PropertyPermission java.vm.version read)
(java.util.PropertyPermission os.arch read)
(java.util.PropertyPermission java.vm.specification.name read)
(java.util.PropertyPermission java.vm.specification.version read)
(java.util.PropertyPermission java.specification.version read)
(java.util.PropertyPermission java.vendor read)
(java.util.PropertyPermission path.separator read)
(java.util.PropertyPermission line.separator read)
(java.net.SocketPermission localhost:1024- listen,resolve)
 at java.security.AccessControlContext.checkPermission(AccessControlContext.java:280)
 at java.security.AccessController.checkPermission(AccessController.java:429)
 at java.lang.SecurityManager.checkPermission(SecurityManager.java:528)
 at oracle.aurora.rdbms.SecurityManagerImpl.checkPermission(SecurityManagerImpl.java:192)
 at java.lang.Thread.getContextClassLoader(Thread.java:1203)
 at com.evermind.server.rmi.RMICall.<init>(RMICall.java:36)
 at com.evermind.server.rmi.RmiCallQueue.createCall(RmiCallQueue.java:33)
 at com.evermind.server.rmi.RMIClientConnection.createQueuedCall(RMIClientConnection.java:592)
 at com.evermind.server.rmi.RMIClientConnection.writeRequest(RMIClientConnection.java:581)
 at com.evermind.server.rmi.RMIClientConnection.sendMethodInvocationRequest(RMIClientConnection.java:426)
 at com.evermind.server.rmi.RMIClientConnection.invokeMethod(RMIClientConnection.java:415)
 at com.evermind.server.rmi.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:63)
 at com.evermind.server.rmi.RecoverableRemoteInvocationHandler.invoke(RecoverableRemoteInvocationHandler.java:28)
 at __Proxy0.create(Unknown Source)
 at com.axiomsystems.test.client.TestDBClient.test(TestDBClient.java:76)
Has anybody come across this before? If so can they help?
If not has anybody out there actually managed to call an EJB method (without going via an RMI server/Servlet/or any other proxy).
Any help in this matter would be greatfully appreciated.
Cheers,
Anand.

Sure, here's the code. It's what JDev generates automatically but I have seperated some things into several diffrent lines so I could experiment easier.
final Context context = getInitialContext();
Object o=context.lookup( "SessionEJB4" );
Object l= PortableRemoteObject.narrow( o, SessionEJB4Home.class );
final SessionEJB4Home sessionEJB4Home = (SessionEJB4Home)l;
SessionEJB4 sessionEJB4 = sessionEJB4Home.create();
String ret=( sessionEJB4.hello( ) );
As I mentioned, for this I have used EJB2.1 bean, because I had same problems with EJB3.0, so I tried earlier versions of Java to make sure that is not the problem.
hello() method just returns string "hello".
Of course, this works in standalone client that is not loaded into database.
Now, I loaded all the jars mentioned in this thread, using loadjava options -v -resolve, and I loaded client using options -v -resolve -genmissing . Select query on user objects in database shows that client class and relevant classes are all valid.
Then I created stub and ran it. First it stopped throwing exception ORA-29532: Java call terminated by uncought Java exception: Java.lang.NoClassDefFoundError.
Method I try to run returns String value which is hello message if it works fine, else it prints the part of the stack trace. In this case, after p[revious error, When I try to run it again, i get return from the method :
Lookup error: java.lang.NoClassDefFoundError; nested exception is:
 java.lang.NoClassDefFoundError
com.evermind.server.rmi.RMICall.throwRecordedException(RMICall.java:89)
com.evermind.server.rmi.RMIClientConnection.waitForJndiResponse(RMIClientConnection.java:371)
com.evermind.server.rmi.RMIClientConnection.lookup(RMIClientConnection.java:179)
com.evermind.server.rmi.RMIClient.lookup(RMIClient.java:283)
com.evermind.server.rmi.RMIClientContext.lookup(RMIClientContext.java:51)
javax.naming.InitialContext.lookup(InitialContext.java:347)
simpleejbproject.EJB4Client.hello(EJB4Client.java:35)
Of course, regular version of the client I run frokm command line works fine.
So I'm kind of a stuck here. I followed all directions, tried it on oracle 9 and oracle 10 DB, the problems remain the same. Am I missing something here?
Thanks
Just to add, getInitialContext()
 private static Context getInitialContext() throws NamingException {
 Hashtable env = new Hashtable();
 // Oracle Application Server 10g connection details
 env.put( Context.INITIAL_CONTEXT_FACTORY, "oracle.j2ee.rmi.RMIInitialContextFactory" );
 env.put( Context.SECURITY_PRINCIPAL, "oc4jadmin" );
 env.put( Context.SECURITY_CREDENTIALS, "manager1" );
 env.put(Context.PROVIDER_URL, "opmn:ormi://mserv:4005:home/TestEjb4");
 return new InitialContext( env );
It goes withouth any exceptions.
Message was edited by:
user510152

Canu00B4t call an EJB from other EJB

Hi developers,
I need do the next task :
I have a EJB in an EAR and i need call some functionality from other EJB in diferent EAR , when execute the code show the next message error:
java.rmi.RemoteException: com.sap.engine.services.ejb.exceptions.BaseRemoteException: Exception in method generaMDMOutput.
 at com.sapconsulting.customer.inc.CustomerIncObjectImpl0.generaMDMOutput(CustomerIncObjectImpl0.java:135)
 at com.sapconsulting.customer.inc.CustomerIncObjectImpl0p4_Skel.dispatch(CustomerIncObjectImpl0p4_Skel.java:127)
 at com.sap.engine.services.rmi_p4.DispatchImpl._runInternal(DispatchImpl.java(Compiled Code))
 at com.sap.engine.services.rmi_p4.DispatchImpl._run(DispatchImpl.java(Inlined Compiled Code))
 at com.sap.engine.services.rmi_p4.server.P4SessionProcessor.request(P4SessionProcessor.java(Compiled Code))
 at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java(Compiled Code))
 at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java(Compiled Code))
 at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java(Compiled Code))
 at java.security.AccessController.doPrivileged1(Native Method)
 at java.security.AccessController.doPrivileged(AccessController.java(Compiled Code))
 at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java(Compiled Code))
 at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java(Compiled Code))
Caused by: java.lang.ClassCastException: com.sap.engine.interfaces.cross.ObjectReferenceImpl
 at com.sapconsulting.customer.inc.CustomerIncBean.generaMDMOutput(CustomerIncBean.java:141)
 at com.sapconsulting.customer.inc.CustomerIncObjectImpl0.generaMDMOutput(CustomerIncObjectImpl0.java:119)
 ... 11 more
the code to invoke the EJB is the next:
ctx = new InitialContext();
TestEJBLocalHome home = (TestEJBLocalHome) ctx.lookup("sap.com/TestEJB_ear/TestEJBBean");
 TestEJB servicio=(TestEJB)home.create();
the EJB are in the same server , please help,
regards

Hi Siarhei,
thank's for your answers , i'll explain the scenario , i think i copied wrong the code that i have ,
i have two EAR's applications , i want to call one EJB from the other EJB in other EAR , the call have to be remote , my code is the next :
ctx = new InitialContext();
Object obj = ctx.lookup("sap.com/TestEJB_ear/TestEJBBean");
TestEJBHome home = (TestEJBHome) PortableRemoteObject.narrow(obj,TestEJBHome.class);
TestEJB servicio= home.create();
i've confugured the ejb-xml.jar adding
<ejb-ref>
<ejb-ref-name>ejb/TestEJBBean</ejb-ref-name>
<ejb-ref-type>Session</ejb-ref-type>
<home>com.innovativesystems.onl.TestEJBHome</home>
<remote>com.innovativesystems.onl.TestEJB</remote>
</ejb-ref>
I've configured the ejb-j2ee-jar.xml adding
<ejb-ref>
<ejb-ref-name>ejb/TestEJBBean</ejb-ref-name>
<jndi-name>sap.com/TestEJB_ear/TestEJBBean</jndi-name>
</ejb-ref>
I've configured the application-j2ee-engine.xml adding a hard reference
<reference
reference-type="hard">
<reference-target
provider-name="sap.com"
target-type="application">TestEJB_ear</reference-target>
</reference>
with all this configuration still send me the message java.lang.classcast ,
something is missing???? ,
regards

Calling an EJB from jsp - ServletException

I am unable to call an EJB from jsp, unless I put the actuall classes of
 the EJB into the classpath. Is this the right way to do it?
 The exception is:
 Servlet failed with ServletException
 javax.servlet.ServletException: Servlet class: 'jsp_servlet._result'
 could not be loaded - the requested class wasn't found in the
 classpath:
 '/local/apps/bea/wlserver6.0/config/gmodomain/applications/.wl_temp_do_not_delete/wl_local_comp34107.war:/local/apps/bea/wlserver6.0/./config/gmodomain/applications/.wl_temp_do_not_delete/WEB-INF/_tmp_war_gmo_gmo_webwar:/local/apps/bea/wlserver6.0/config/gmodomain/applications/.wl_temp_do_not_delete/WEB-INF/_tmp_war_gmo_gmo_webwar'
 at
 weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:532)
 at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:191)
 at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:148)
 at
 weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.java:306)
 at
 weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:208)
 at
 weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:246)
 at
 weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:1265)
 at
 weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:1622)
 at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
 at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
 where result.jsp is the jsp page calling the EJB. I did an import of the
 EJB classes in the jsp.
 like i said, it works if I put the bean classes in the classpath. But is
 it right?
 if I have these in the exploded format, do I need to put anything in the
 application web.xml under:
 wlserver6.0/config/gmodomain/applications/DefaultWebApp_gmo/WEB-INF ?
 redhat 6.2, wl6.0sp1
 here are the xml files:
 web.xml:
 <?xml version="1.0"?>
 <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application
 2.2//EN" "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">
 
 <web-app>
 <display-name>My Web Application</display-name>
 <description>none</description>
 <ejb-ref>
 <ejb-ref-name>MyWeb</ejb-ref-name>
 <ejb-ref-type>Session</ejb-ref-type>
 <home>com.blah.ejb.myweb.WyWebHome</home>
 <remote>com.blah.ejb.myweb.MyWeb</remote>
 </ejb-ref>
 </web-app>
 weblogic.xml:
 <!DOCTYPE weblogic-web-app PUBLIC "-//BEA Systems, Inc.//DTD Web
 Application 6.0//EN"
 "http://www.bea.com/servers/wls600/dtd/weblogic-web-jar.dtd">
 <weblogic-web-app>
 <jsp-descriptor>
 <jsp-param>
 <param-name>
 pageCheckSeconds
 </param-name>
 <param-value>
 1
 </param-value>
 </jsp-param>
 <jsp-param>
 <param-name>
 verbose
 </param-name>
 <param-value>
 true
 </param-value>
 </jsp-param>
 <jsp-param>
 <param-name>compileCommand</param-name>
 <param-value>/local/apps/jdk1.3.0_02/bin/javac</param-value>
 </jsp-param>
 </jsp-descriptor>
 <reference-descriptor>
 <ejb-reference-description>
 <ejb-ref-name>MyWeb</ejb-ref-name>
 <jndi-name>MyWeb</jndi-name>
 </ejb-reference-description>
 </reference-descriptor>
 </weblogic-web-app>
 thanks,
 Gary


Did you package your JSPs in a WAR and your EJBs in a JAR and package the
 WAR and JAR in an EAR? That is how to do it in 6.0. Works well.
 Peace,
 Cameron Purdy
 Tangosol, Inc.
 http://www.tangosol.com
 +1.617.623.5782
 WebLogic Consulting Available
 "gmo" <[email protected]> wrote in message
 news:[email protected]...
 > I am unable to call an EJB from jsp, unless I put the actuall classes of
 > the EJB into the classpath. Is this the right way to do it?
 > The exception is:
 > Servlet failed with ServletException
 > javax.servlet.ServletException: Servlet class: 'jsp_servlet._result'
 > could not be loaded - the requested class wasn't found in the
 > classpath:
 >
 '/local/apps/bea/wlserver6.0/config/gmodomain/applications/.wl_temp_do_not_d
 elete/wl_local_comp34107.war:/local/apps/bea/wlserver6.0/./config/gmodomain/
 applications/.wl_temp_do_not_delete/WEB-INF/_tmp_war_gmo_gmo_webwar:/local/a
 pps/bea/wlserver6.0/config/gmodomain/applications/.wl_temp_do_not_delete/WEB
 -INF/_tmp_war_gmo_gmo_webwar'
 >
 > at
 >
 weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.jav
 a:532)
 >
 > at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:191)
 >
 > at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:148)
 >
 > at
 >
 weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.java:30
 6)
 >
 > at
 >
 weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
 :208)
 >
 > at
 >
 weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
 :246)
 >
 > at
 >
 weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletCo
 ntext.java:1265)
 >
 > at
 >
 weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java
 :1622)
 >
 > at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
 >
 > at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
 >
 > where result.jsp is the jsp page calling the EJB. I did an import of the
 > EJB classes in the jsp.
 > like i said, it works if I put the bean classes in the classpath. But is
 > it right?
 > if I have these in the exploded format, do I need to put anything in the
 > application web.xml under:
 > wlserver6.0/config/gmodomain/applications/DefaultWebApp_gmo/WEB-INF ?
 >
 > redhat 6.2, wl6.0sp1
 >
 > here are the xml files:
 > web.xml:
 >
 > <?xml version="1.0"?>
 > <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application
 > 2.2//EN" "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">
 >
 > 
 >
 > <web-app>
 > <display-name>My Web Application</display-name>
 > <description>none</description>
 > <ejb-ref>
 > <ejb-ref-name>MyWeb</ejb-ref-name>
 > <ejb-ref-type>Session</ejb-ref-type>
 > <home>com.blah.ejb.myweb.WyWebHome</home>
 > <remote>com.blah.ejb.myweb.MyWeb</remote>
 > </ejb-ref>
 > </web-app>
 >
 > weblogic.xml:
 >
 > <!DOCTYPE weblogic-web-app PUBLIC "-//BEA Systems, Inc.//DTD Web
 > Application 6.0//EN"
 > "http://www.bea.com/servers/wls600/dtd/weblogic-web-jar.dtd">
 > <weblogic-web-app>
 > <jsp-descriptor>
 > <jsp-param>
 > <param-name>
 > pageCheckSeconds
 > </param-name>
 > <param-value>
 > 1
 > </param-value>
 > </jsp-param>
 > <jsp-param>
 > <param-name>
 > verbose
 > </param-name>
 > <param-value>
 > true
 > </param-value>
 > </jsp-param>
 > <jsp-param>
 > <param-name>compileCommand</param-name>
 > <param-value>/local/apps/jdk1.3.0_02/bin/javac</param-value>
 > </jsp-param>
 > </jsp-descriptor>
 > <reference-descriptor>
 > <ejb-reference-description>
 > <ejb-ref-name>MyWeb</ejb-ref-name>
 > <jndi-name>MyWeb</jndi-name>
 > </ejb-reference-description>
 > </reference-descriptor>
 > </weblogic-web-app>
 >
 > thanks,
 >
 > Gary
 >
 >

Curious thing while calling a procedure from Java !...

Hi !. My name is Agustin and my doubt would be the following one... I am working for a e-business comp and they asked me to call a procedure from java... The code is the following one:
CallableStatement cs = null;
System.out.println("Fecha Nro. 1: " + paramFechaDesde);
System.out.println("Fecha Nro. 2: " + paramFechaHasta);
try
cs = getDBTransaction().createCallableStatement("{call paq_w_ListadoSiniestralidadART. p_sinsiniest(?,?,?,?) }",0);
cs.registerOutParameter(4,OracleTypes.VARCHAR);
cs.setInt(1,paramContrato.intValue());
cs.setString(2,paramFechaDesde);
cs.setString(3,paramFechaHasta);
cs.setString(4,paramNombreArchivo);
cs.executeQuery();
String nomArchivo = cs.getString(4);
System.out.println("### " + nomArchivo +" ###");
catch(SQLException e)
The weird thing is that, I was expecting a big big exception but the only thing I got is
### Error ###
The String I am expecting is a file's name !; so I am a little bit confused...
Also I didn't know where to post so If it's in the wrong category... I apologize !... If anyone need more details, I'll be checking out... The account I am working on is an Insurance company, who is the one who provide access to the DB and the procedures... So I can't check what's inside...

Please provide your Java and OS versions, the JDBC jar file and the Oracle DB version being used when you post.
>
I was expecting a big big exception
>
Then why do you have an empty exception block? That just makes it disappear so you won't see one if it happens.
And your code has
cs.registerOutParameter(4,OracleTypes.VARCHAR);
cs.setString(4,paramNombreArchivo);You use 'registerOutParameter' for an OUT parameter and the 'setXXX' methods for other parameters.
Remove the 'setSTring' for the OUT parameter.
Then as malcollmmc already said
>
Sounds like the PL/SQL is returning "Error" as the 4th parameter of the call
>
The actual value returned by PL/SQL is strictly determined by the PL/SQL code and Java and JDBC are not involved.
Fix the code problems, retest, and folllowup with whoever wrote the code if it still returns ERROR.

Call .bat file from java code

I need to call an application that uses a .bat file to execute from a java program. Is that possible?
This is the .bat file:
importcli.exe ciaf2735 C:\Importcli\files\SAI2735*.txt
importcli.exe ciaf2735 C:\Importcli\files\CI2735*.txt
importcli.exe ciaf2735 C:\Importcli\files\SC2735*.txt
importcli.exe db1800 C:\Importcli\files\*.mdb

magaupe wrote:
I need to call an application that uses a .bat file to execute from a java program. Is that possible?
This is the .bat file:
importcli.exe ciaf2735 C:\Importcli\files\SAI2735*.txt
importcli.exe ciaf2735 C:\Importcli\files\CI2735*.txt
importcli.exe ciaf2735 C:\Importcli\files\SC2735*.txt
importcli.exe db1800 C:\Importcli\files\*.mdb
Hmmm, I wonder what would happen if there were a web search engine and you could research like this:
[http://www.google.com/search?hl=en&q=call+.bat+file+from+java]

Problem when calling a report from java

Hi all,
i have created a report using ireport which contains arabic data.
when i execute the report from ireport to generate a pdf file it works.
however when i call this report from java i have an exception"
Could not create the report Could not load the following font :
pdfFontName : ARIAL.TTF
pdfEncoding : Identity-H"
the pdfFont i used it in ireport, also the pdfEncoding.
did anyone passed with the same problem
thanks for help

Hello Oracle experts,
The parameters are getting passed successfully in my report.
But I want to know hous to use it in my query group.
I just want the syntax.
Thanks

Calling a servlet from java

How to call a servlet from java?
your help is greatly appreciated..

Welcome to the forum
You seem to be misunderstanding something. Do some googling to learn what you need about servlets. Simplified, servlets are java code that's hosted by a web container, such as Tomcat. When a servlet gets called as a consequence of someone requesting a url from the container, it takes in a request object and a response object. All the magic is then in creating an appropriate response (e.g. html) for the incoming request.

How to Call C++ Method from Java

I need to call C++ method from Java.
I have gone through the JNI tuorial , but was not able to pin point things.
I read that :
You have to write JNI c functions which then call your C++ member functions.You need to write a JNI function which will call new on your C++ class.
Now i have java class :
Java Code JavaClass.java ---->
class JavaClass{
public native void nativeMethod();
    static
        System.loadLibrary("NativeCppCode");
     private void callCppMethod()
          //call C++ method
                JavaClass jvc = new JavaClass();
                jvc.nativeMethod()
}Cpp Code:
NativeCppCode.h---->
class NativeCppCode
public:
    getValue();
    setValue();
private:
   int a;
JNIEXPORT void JNICALL Java_JavaClass_nativeMethod(JNIEnv *env
               ,jobject obj);NativeCppCode.C---->
NativeCppCode::getValue()
   return a;
NativeCppCode::setValue()
   a = 1;
JNIEXPORT void JNICALL Java_JavaClass_nativeMethod(JNIEnv *env
               ,jobject obj)
NativeCppCode* nativeInstabce = new NativeCppCode();
NativeCppCode.setValue();
}Is this the correct way to do it.
Any suggestion would be a great help to me

tryit wrote:
I need to call C++ method from Java.Not possible.
JNI uses C methods.
Is this the correct way to do it.Same way you would do it in any C/C++ method (not java)
       MyClass* p = ....
       p->doit();
Common idiom for the pointer in the above is to pass it back and forth to your java code as a java long. You cast it it and from your class pointer. Provide an explicit java method to free it when done. Besides providing the explicit method also implement a finalizer to free it as well (however that is a fail safe and should not be relied upon.)

How to call gnuplot command from java

Hi there,
In our course, we are required to develop an GUI for gnuplot. In case you don't know about gnuplot, it's a plotting program and has lots of command. We want to use java and swing, but now we don't know how to call gnuplot command from java, or how to execute a shell command(script) from java.
By the way, since we need read in files with several columns of data and allow user to select a column, we want to use JTable. Is that reasonable?
Thanks a lot for any suggestions!
Jack

Hi, there:
Will using JTable add much overhead? I may have to use several JTables and switch among them. I can add scroll bar to or edit JTables, right?
BTW, do you have experience about gnuplot? Can I find the command tree of gnuplot somewhere? Or do you know a better place to post question about gnuplot? unix/linux group, maybe.
Thanks,
Jack
P.S. Would you guys answer my question after I use up my duke dollars? :- )

Is it possible to call ctx_doc.filter from Java?

Hello all,
Is it possible to call ctx_doc.filter from Java?
If so, do you have a code sample?
Thanks,
Marvin

I have some Java code using ctx_doc.markup that can help:
try {
//make db conn
OracleCallableStatement stmt =(OracleCallableStatement)conn.prepareCall("begin "+
"ctx_doc.markup(index_name=>'text_idx', "+
"textkey=>?,"+
"text_query=>?,"+
"restab=>?,"+
"starttag=> '<a>',"+
"endtag=> '</a>' "+
"); " +
"end; ");
... // register other parameters
stmt.registerOutParameter(3, OracleTypes.CLOB);
stmt.execute();
oracle.sql.CLOB text_clob=null;
text_clob = ((OracleCallableStatement)stmt).getCLOB(3);
// read the CLOB by chunks
int chunk_size=text_clob.getChunkSize();
Reader char_stream = text_clob.getCharacterStream();
char[] char_array = new char[chunk_size];
for(int n=char_stream.read(char_array);n>0; n=char_stream.read(char_array)){
out.print(char_array);}
}catch (SQLException e)

Calling ctx_doc.filter from java...is it possible?

Hello all,
Is it possible to call ctx_doc.filter from Java?
If it is possible, does anyone have a code sample they can share?
Thanks for the help,
Marvin
http://www.esenai.com

I have some Java code using ctx_doc.markup that can help:
try {
//make db conn
OracleCallableStatement stmt =(OracleCallableStatement)conn.prepareCall("begin "+
"ctx_doc.markup(index_name=>'text_idx', "+
"textkey=>?,"+
"text_query=>?,"+
"restab=>?,"+
"starttag=> '<a>',"+
"endtag=> '</a>' "+
"); " +
"end; ");
... // register other parameters
stmt.registerOutParameter(3, OracleTypes.CLOB);
stmt.execute();
oracle.sql.CLOB text_clob=null;
text_clob = ((OracleCallableStatement)stmt).getCLOB(3);
// read the CLOB by chunks
int chunk_size=text_clob.getChunkSize();
Reader char_stream = text_clob.getCharacterStream();
char[] char_array = new char[chunk_size];
for(int n=char_stream.read(char_array);n>0; n=char_stream.read(char_array)){
out.print(char_array);}
}catch (SQLException e)

Call Crystal Report from java

Hi, Can anyone pl send me an e.g of how to call crystal reports from java ? Preferably crsytal version 10. how to instantiate a crystal report viewer? how to pass parameters? how to set the connection string?my email is <a href="mailto:[email protected]">[email protected]</a> Regards,Hui Bee 

Hi Hui Bee, There are a number of version 10 samples available contained in the following package:<a href="http://support.businessobjects.com/communityCS/FilesAndUpdates/cr10_jrc_samples.exe" title="JRC 10 samples">http://support.businessobjects.com/communityCS/FilesAndUpdates/cr10_jrc_samples.exe</a>However, I would strongly suggest that you take a look at using the latest version of the Java component that ships with our Crystal Reports for Eclipse product. You can download it from here:<a href="/node/450">http://diamond.businessobjects.com/node/450</a>and best of all, it's free! Regards, Sean Johnson (CR4E Product Manager) <a href="http://www.eclipseplugincentral.com/Web_Links-index-req-ratelink-lid-639.html">Rate this plugin @ Eclipse Plugin Central</a>

Can I call an interface from java

Dear All,
Can I call an interface from java in ODI ?
Best Regards
Arc

Short answer, Yes.
Long answer - you must create a scenario from the interface (the scenario is the "executable" code), right-mouse-button on the interface in the tree and "Generate Scenario". This can then be called using the invocation api this is documented in your <installationdirectry>/oracledi/doc/sdk/invocation. This points you at all the necessary classes etc to use.

Calling an EJB from Java Mappings in PI 7.1

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