Dynamic Java bean classes for XSD using JAVA (not any external batch or sh)

Hi,
How can we generate dynamic Java bean classes for XSD (dynamically support All XSD at runtime)?
Note: - Through java code via only needs to generate this process. (Not using any xjc.bat or xjc.sh from JAXB).
Thanks

Muthu wrote:
How can we generate dynamic Java bean classes for XSD (dynamically support All XSD at runtime)?
Pretty sure you can't. Probably can do a lot of them with years of work.
And can probably can do a resonable subset suitable for the business at hand with only a moderate effort.
Note: - Through java code via only needs to generate this process. (Not using any xjc.bat or xjc.sh from JAXB).The Sun jdk, not jre, comes with the java compiler as part of it. You can create in memory class (I believe in memory) based on java code you create.
I believe BCEL alllows the same thing (in memory) but you start with byte codes.
You could just create a dynamic meta data solution as well, via maps and generic methods. Not as fast though.

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Hi
I have a XSD, which is importing other couple of xsds in it, tried to generate java classes using xjc, it is throwing error.
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Thanks for information,
I do understand xml well, and having basic knowledge on XSD.
1. can i generate a java classes for a xsd which is including other XSDs.
2. how to overwrite the issue, using annotation, point me to a location where i will get more information, that will be great help.
here is my xsd.
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:ditaarch="http://dita.oasis-open.org/architecture/2005/" xmlns:dctm="http://www.documentum.com" elementFormDefault="qualified">
     <xs:import namespace="http://dita.oasis-open.org/architecture/2005/" schemaLocation="ditaarch.xsd"/>
     <xs:import namespace="http://www.documentum.com" schemaLocation="dctmAttrs.ent.xsd"/>
     <xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="xml.xsd"/>
     <xs:group name="alt">
          <xs:sequence>
               <xs:element ref="alt"/>
          </xs:sequence>
     </xs:group>
     <xs:group name="desc">
          <xs:sequence>
               <xs:element ref="desc"/>
          </xs:sequence>
     </xs:group>
     <xs:group name="title">
          <xs:sequence>
               <xs:element ref="title"/>
          </xs:sequence>
     </xs:group>
     
     <xs:group name="colspec">
          <xs:sequence>
               <xs:element ref="colspec"/>
          </xs:sequence>
     </xs:group>
     <xs:group name="entry">
          <xs:sequence>
               <xs:element ref="entry"/>
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     <xs:group name="row">
          <xs:sequence>
               <xs:element ref="row"/>
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     <xs:group name="tbody">
          <xs:sequence>
               <xs:element ref="tbody"/>
          </xs:sequence>
     </xs:group>
     <xs:group name="tgroup">
          <xs:sequence>
               <xs:element ref="tgroup"/>
          </xs:sequence>
     </xs:group>
     <xs:group name="thead">
          <xs:sequence>
               <xs:element ref="thead"/>
          </xs:sequence>
     </xs:group>
</xs:schema>

Reusing JAXB generated classes for XSDs included in other XSDs

Hi,
I use xsds with jaxb in a number of related projects. To avoid duplication I've factored out commonly used elements into their own xsd in a separate project. I then include these in the xsds that need them.
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For example: I have a general xsd Person.xsd for which I generate classes in common.xsd. I have another xsd Project.xsd that includes a reference to the Person element. When i let jaxb generate classes for Projects.xsd, it will also generate a project.xsd.PersonType and so on.
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Thx for any help

JAXB questions should be better directed to the users list of http://jaxb.dev.java.net/
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Generated servlet error - unable to compile class for JSP - using NB5.5/SS9

I am using NB5.5 beta2 and Sun server 9.0 with JSF 1.1 - all is OK when I am creating firts JSF application - welcomeJSF.jsp page is rendered normally - but when I am adding one more jsp with JSP view and so on - then - I am getting errors in both JSF pages - both - in original welcomeJSF and the new invoice.jsp page
here is code for typical error
org.apache.jasper.JasperException: Unable to compile class for JSP
org.apache.jasper.JasperException: Unable to compile class for JSP
Generated servlet error:
[javac] E:\Sun\AppServer\domains\domain1\generated\jsp\j2ee-modules\ERPSolution\org\apache\jsp\welcomeJSF_jsp.java:99: cannot find symbol
[javac] symbol : method setJspId(java.lang.String)
[javac] location: class com.sun.faces.taglib.jsf_core.ViewTag
[javac] jspxth_f_view_0.setJspId("id7");
[javac] ^
Generated servlet error:
[javac] E:\Sun\AppServer\domains\domain1\generated\jsp\j2ee-modules\ERPSolution\org\apache\jsp\welcomeJSF_jsp.java:144: cannot find symbol
[javac] symbol : method setJspId(java.lang.String)
[javac] location: class com.sun.faces.taglib.html_basic.OutputTextTag
[javac] jspxth_h_outputText_0.setJspId("id17");
[javac] ^
Generated servlet error:
[javac] E:\Sun\AppServer\domains\domain1\generated\jsp\j2ee-modules\ERPSolution\org\apache\jsp\welcomeJSF_jsp.java:145: setValue(java.lang.String) in com.sun.faces.taglib.html_basic.OutputTextTag cannot be applied to (javax.el.ValueExpression)
[javac] jspxth_h_outputText_0.setValue(org.apache.jasper.runtime.PageContextImpl.getValueExpression("Java Server Faces", (PageContext)_jspx_page_context, java.lang.Object.class, null));
[javac] ^
[javac] 3 errors
     org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:94)
     org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:384)
     org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:461)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:528)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:507)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:495)
     org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:530)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:409)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:317)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
     com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:414)
     com.sun.faces.application.ViewHandlerImpl.executePageToBuildView(ViewHandlerImpl.java:455)
     com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:139)
     com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:108)
     com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:266)
     com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:159)
     javax.faces.webapp.FacesServlet.service(FacesServlet.java:245)
     com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:73)
     com.sun.enterprise.web.VirtualServerPipeline.invoke(VirtualServerPipeline.java:120)
     org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:231)
     com.sun.enterprise.web.connector.grizzly.ProcessorTask.invokeAdapter(ProcessorTask.java:667)
     com.sun.enterprise.web.connector.grizzly.ProcessorTask.processNonBlocked(ProcessorTask.java:574)
     com.sun.enterprise.web.connector.grizzly.ProcessorTask.process(ProcessorTask.java:844)
     com.sun.enterprise.web.connector.grizzly.ReadTask.executeProcessorTask(ReadTask.java:287)
     com.sun.enterprise.web.connector.grizzly.ReadTask.doTask(ReadTask.java:212)
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note The full stack trace of the root cause is available in the Sun Java System Application Server Platform Edition 9.0 logs.
and there is output for another error:
Generated servlet error:
[javac] E:\Sun\AppServer\domains\domain1\generated\jsp\j2ee-modules\ERPSolution\org\apache\jsp\welcomeJSF_jsp.java:144: cannot find symbol
[javac] symbol : method setJspId(java.lang.String)
[javac] location: class com.sun.faces.taglib.html_basic.OutputTextTag
[javac] jspxth_h_outputText_0.setJspId("id17");
[javac] ^
Generated servlet error:
[javac] E:\Sun\AppServer\domains\domain1\generated\jsp\j2ee-modules\ERPSolution\org\apache\jsp\welcomeJSF_jsp.java:145: setValue(java.lang.String) in com.sun.faces.taglib.html_basic.OutputTextTag cannot be applied to (javax.el.ValueExpression)
[javac] jspxth_h_outputText_0.setValue(org.apache.jasper.runtime.PageContextImpl.getValueExpression("Java Server Faces", (PageContext)_jspx_page_context, java.lang.Object.class, null));
[javac] ^
[javac] 3 errors
and here is code of my new invoice.jsp page:
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%@taglib prefix="f" uri="http://java.sun.com/jsf/core"%>
<%@taglib prefix="h" uri="http://java.sun.com/jsf/html"%>
<%--
The taglib directive below imports the JSTL library. If you uncomment it,
you must also add the JSTL library to the project. The Add Library... action
on Libraries node in Projects view can be used to add the JSTL 1.1 library.
--%>
<%--
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
--%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
   "http://www.w3.org/TR/html4/loose.dtd">
<f:view>
   <html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>JSP Page</title>
    </head>
    <body>
      <h1><h:outputText value="Java Server Faces" /></h1>
    <h:inputText value="#{managerBean.currentInvoice.id}"/>
    <h:inputText value="#{managerBean.currentInvoice.description}"/>
    <h:inputText value="#{managerBean.currentInvoice.total}"/>
    <h:commandButton value="new_invoice"
                     type="submit"
                     actionListener="#{managerBean.createNewInvoice}"/>
    </body>
</f:view>and faces-config.xml file:
<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE faces-config PUBLIC
"-//Sun Microsystems, Inc.//DTD JavaServer Faces Config 1.1//EN"
"http://java.sun.com/dtd/web-facesconfig_1_1.dtd">

<faces-config>
    <managed-bean>
        <managed-bean-name>managerBean</managed-bean-name>
        <managed-bean-class>com.brl.ERPSolution.ui.ManagerBean</managed-bean-class>
        <managed-bean-scope>session</managed-bean-scope>
    </managed-bean>
</faces-config>managerBean was intended to be backing beans which will call the facaed beans of EJB 3.0 entity beans - but at presnet - almost empty methods are declared there:
package com.brl.ERPSolution.ui;
import javax.faces.event.ActionEvent;
import com.brl.solutions.EJB3.*;
* @author Administrator
public class ManagerBean {
    protected int currentInvoiceId;
    protected Invoices currentInvoice;
    protected InvoicesFacade invoicesFacade;
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        invoicesFacade.create(this.currentInvoice);
    public Invoices getCurrentInvoice()
        return this.currentInvoice;
    public void setCurrentInvoice(Invoices currentInvoice)
        this.currentInvoice=currentInvoice;
}I read in one blog (actually - the only page which was returned by yahoo - so - this should be very rare error!!!) to try to use Sun server's verifier.bat - and - it reported 0 errors and 0 warning. Build was succesfull as well and also - deployment was without errors - but - above mentioned error appeared during the automatic compilation of jsp pages/servlet when newly deployed jsps are first accessed from remote browser.
So - is it possible, please, to receive some advice - what to do further? I feel that my invoice.jsp page can be with errors, - however - the original welcomeJSF.jsp should be working without errors even the erronwous JFS jsp page is added to web application.
Thans for any adice or hint in advance!!!

OK - I have made 'clean and build main project' from NB menu and the deployed the resulting *.war and the error messages have disappeared... So - it seems to be bug...

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Hello folks,
I was trying to build a simple web application using Eclipse IDE, tomcat 5.x server and ant to build and deploy the application.
I referenced the following tutorial:
http://www.onjava.com/pub/a/onjava/2003/01/08/tomcat4.html
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package com.ak.test does not exist
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^
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Additional Info:
Location of files
==================
My jsp file is located at:
C:\eclipse\workspace\aweb\web\Home.jsp
my class is located in:
C:\eclipse\workspace\aweb\WEB-INF\classes\com\ak\test
Webapplication Dir Structure:C:\eclipse\workspace:
aweb(webapplication name)
+web
-----+Home.jsp
+src
------+com.ak.test.MyJava.java
+WEB-INF
------+Classes
--------+com.ak.test.MyJava.class
------+lib
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------+web.xml
------+struts-config.xml
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Ant task which installs the webapplication in Tomcat:
<target name="install" description="Installs the Web Application" depends="package">
<echo message="Installing ${app.name} ..."/>
<install url="${manager.url}" username="${username}" password="${password}" path="/${app.name}"
config="file:${basedir}/war/META-INF/context.xml" war="file:${basedir}/${app.name}.war"/>
</target>
build.properties file
app.name=aweb
manager.url=http://localhost:8080/manager
tomcat.home=C:/tomcat
username=user
password=user
Contents of the jsp file
=======================
<%@ page import="com.ak.test.MyJava" %>
<html>
<head>
<title>Home Page</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
</body>
</html>

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I have developped an application In that Create One java class that Extends PageProcesscomponenet and utilizing the Bean That have the Connetion method and retriving the query Based on the Logon customer and spoof customer.
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Message was edited by:
        Lohitha M

Lohitha,
Try replacing your two lines of code:
InputField ip= (InputField) myContext.getComponentForId("spoofCust");
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[email protected]
http://www.louisiana.edu/~rml7669
"Joanne Corless" <[email protected]> wrote:
>
>
I've fixed it!!!!!!!!
Thanks to everyone who gave me help!!!!
The class loader was the culprit which is what I suspected all along.
As soon
as I put the 2 jar files I was using into an EAR file the problem went
away!!!!!
Thanks again
Jo Corless
"Ryan LeCompte" <[email protected]> wrote:
Hello Joanne,
As Mr. Woollen mentioned, I also believe it's a problem with the class
loader.
You need to be careful how you arrange your EJBs, because WebLogic has
a specific
method in which it loads classes in an EAR, JAR, and WAR file(s). Please
refer
to http://dev2dev.bea.com/articles/musser.jsp for more information about
BEA WebLogic
class loading mechanisms and caveats. Also, try printing out the various
methods
that are available on the object that was returned to you via reflection.
For
example, use the getMethods() method, which returns an array of Method
objects
that you can subsequently cycle through and print out the various method
names.
This way you can discover if the class found/returned to you is indeed
the one
you intend to locate.
Hope this helps,
Ryan LeCompte
[email protected]
http://www.louisiana.edu/~rml7669
Rob Woollen <[email protected]> wrote:
I believe the issue is the home interface class for this EJB is not
available in the class loader which is doing the reflection.
If you do:
getClass().getClassLoader().loadClass(homeInterfaceClassName)
I suspect it will fail. Reflection still requires that the class be
loadable.
-- Rob
Joanne Corless wrote:
Hi Slava,
If I make my code look like you describe below I get a compliationerror telling
me that
home.getMethod() is not recognised (no such method)
If I change it slightly and use
Method homeCreateMethod =
home.getClass().getMethod(homeCreate,homeCreateParam);
The code will compile OK but when executed it still throws a NoSuchMethodException
Any ideas ?
Thanks for your help so far
Regards
Jo Corless
Your code should look like
Object home = pCtx.lookup(pJNDIName);
Method homeCreateMethod =
home.getMethod(homeCreate,homeCreateParam);
return homeCreateMethod.invoke(home, homeCreateParamValues);
Regards,
Slava Imeshev
"Joanne Corless" <[email protected]> wrote in message
news:[email protected]...
Hi Ryan,
I also wanted to mention that if you do a "header search" in this
particular
newsgroup
with the search query as "reflection", you will see many previousmessages
regarding
reflection and EJBs. I believe you could learn a lot from thedifficulties
that
others have faced and solved.I tried that and although there was a number of similar cases noneof them
actually
seem to fix my issue. Thanks for the suggestion though
Are the EJBs that you are trying to access accessible via your
system
classpath?
Try to avoid having them accessible via the main system classpath,and
only bundle
them in your appropriate EJB jar files (contained in an EAR file,for
example).Maybe I should have laid the problem out a little clearer.
I have a number of EJB's bundled up in a JAR file which is hot deployedto
the
server. Within this first JAR file is an EJB (SSB) component that
needs
to
be
able to invoke a known method on another EJB. This second EJB may
or
may
not be
within the first JAR file but it also will be hot deployed.
The component trying to invoke the method on the 2nd EJB has to
be
able to
create
an instance of the 2nd EJB without actually knowing anything bar
a
JNDI
Name which
is passed in at runtime.
I can get as far as doing the
Object home = pCtx.lookup(pJNDIName);
This returned a class with the name
"com.csc.edc.projects.allders.httppostoffice.postman.PostmanBean_mp8qy2_Home
Impl_WLStub"
My problem seems to occur when I try and invoke the create method
Method homeCreate = home.getClass().getMethod("create", new Class[0]);
My code throws a java.lang.NoSuchMethodException at this point so
I
am
unable
to progress to the next step of :
Object bean = homeCreate.invoke(home, null);
So I can return the instantiated bean back to the calling client.
Why am I getting the NoSuchMethodException, is is because I am gettinga
stub
back rather than the home interface and if so how do I get the truehome
interface
from the bean
Thanks in advance
Jo Corless

Dynamic Java bean classes for XSD using JAVA (not any external batch or sh)

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