How to produce Java class from xsd programmatically?

As titled, I want to generage Java class/interface from xml schema via a program. There is a tool "xjc" that can do this manually.
I saw a sample that generates xsd file from Java class programmatically, I am figuring out if there is such a API to do the similar thing vice versa.
Thank you in advance!

You may want to check out this Java EE 5 Tutorial: http://docs.oracle.com/javaee/5/tutorial/doc/bnbah.html
It has an example of generating JAXB Java classes from an XML schema.
Can you provide a sample xsd schema and the resulting Java class/classes you want to have produced?
XMLBeans can use an xsd and generate Java classes for containing/manipulating XML objects, though I don't think that is what you are wanting.
You can also write an XSLT stylesheet that generates Java classes based on parameters that you provide to the stylesheet but there is no xsd schema involved. We used this at a major national bank to produce Java classes for batch processing of files sent/received between the bank and third pary companies. The Java classes generated were used to read/write delimited files, xml files and fixed format files to/from Java bean classes with the necessary getters/setters for manipulating the data.
Without a sample of what you are trying to doi it is hard to offer much help.

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What I mean is How to load/open java class file from jsp page?
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About generating Java classes from XSD Schema ???

I need a powerfull tool to generate Java classes from XML Schema. I want that generated classes to have the option to validate XML(to be JAXP1.2 compliant).
I used XML Spy 5.4 but the generated classes can't validate an XML file.
Can you help me with other tools that:
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- generate sample XML from XSD
- are JAXP1.2 compliant(validate a XML file with a schema)
Thanks.

You can also use Castor: http://www.castor.org
It generates classes from XML Schemas and enables data
binding without writing any line of a fuckin SAX
parser :-)I evaluated Castor and JAXB and while JAXB isn't perfect, it's got some things over Castor. Castor almost looks abandonded when I go to the site. The documentation just sort of trails off.

How to call Java class from Forms 6i?

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I need to call a Java class from my Forms 6i application.
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And also this one:
Problem Description
Installed Forms 6i Rel 2 on a MS Windows machine. When trying to Import the Java
Classes getting the errors
PDE-UJI0001 Failed to create the JVM
Solution Description
You need to to install JDK 1.2.2 to run the Java Importer. And set the PATH's
and classpath's correctly.
Explanation
1. Download and install the JDK 1.2.2.
Possibly available at: http://java.sun.com/products/archive/
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C:\PROGRA~1\JAVASOFT\JRE\1.2 directory; ORACLE_HOME=C:\Dev6iR2.
Set the PATH to
set PATH=c:\jdk1.2.2\bin;C:\PROGRA~1\JAVASOFT\JRE\1.2\bin;C:\PROGRA~1\JAVASOFT\JRE\1.2\bin\classic;%PATH%
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Francois

Error when generating Java Classes from XSD

I'm getting the following error when using oragc to generate Java classes from a schema:
Error: Schema Class Generator failed to generate classes. oracle.xml.parser.schema.XSDException: Invalid facet 'pattern' in element 'simpleType'
Any thoughts?
Here's the part where it is getting the error:
+111 
+112 <xsd:simpleType name="TimestampType">
+113 <xsd:annotation>
+114 <xsd:documentation>Base type for a date and time stamp</xsd:documentation>
+115 </xsd:annotation>
+116 <xsd:restriction base="xsd:dateTime">
+117 <xsd:pattern value="[1-9][0-9]{3}\-.+T[^\.]+(Z|[\+\-].+)" />
+118 </xsd:restriction>
+119 </xsd:simpleType>

I would recommend using JAXB instead of the Oracle class generator. This will give a standards based object-to-XML platform.
Oracle provides two JAXB implementations: one in the TopLink product, and the other in the XDK.
For an example of using TopLink JAXB see:
http://www.oracle.com/technology/products/ias/toplink/technical/tips/jaxb/index.htm
TopLink also provides the ability to map existing Java objects to an existing XML Schema, for an example of this see:
http://www.oracle.com/technology/products/ias/toplink/technical/tips/ox/index.htm
-Blaise

How to call java class from pl/sql procedure ?

Hello everyone,
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hope ..u can help me out !!
Thank in advance !!

but that updation have to be done from java code only.. we are using GIS tools .. have to create some shape files and update the column with that shape file.. so creation of shape file has to be done from java code only..
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Hi All,
I am trying to invoke a simple java method from post.POST.jsp
I am getting below exception while doing it.
org.apache.sling.api.scripting.ScriptEvaluationException: org.apache.sling.scripting.jsp.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 32 in the jsp file: /apps/mywebsite/components/customFormAction/post.POST.jsp
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29:
30:           ///
31:          com.day.test.datasource.DatasourceUtil dsUtil = new com.day.test.datasource.DatasourceUtilImpl();
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1. In the interface [1] not the implementation[2] have u defined the method test?
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[1] com.day.test.datasource.DatasourceUtil
[2]   com.day.test.datasource.DatasourceUtilImpl

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I have found an example on how to create java classes from WSDL under maven:
(...)<taskdef classname="org.codehaus.xfire.gen.WsGenTask" name="wsgen">(...)
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import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlType;
* <p>Java class for UploadChunk complex type.
* <p>The following schema fragment specifies the expected content contained within this class.
* <pre>
* <complexType name="UploadChunk">
*   <complexContent>
*     <restriction base="{http://www.w3.org/2001/XMLSchema}anyType">
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*         <element name="InputFileName" type="{http://www.w3.org/2001/XMLSchema}string" minOccurs="0"/>
*         <element name="Buffer" type="{http://www.w3.org/2001/XMLSchema}base64Binary" minOccurs="0"/>
*         <element name="Offset" type="{http://www.w3.org/2001/XMLSchema}long"/>
*         <element name="BytesRead" type="{http://www.w3.org/2001/XMLSchema}int"/>
*       </sequence>
*     </restriction>
*   </complexContent>
* </complexType>
* </pre>
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "UploadChunk", propOrder = {
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    "offset",
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    @XmlElement(name = "Buffer")
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     * @return
     *     possible object is
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     * Gets the value of the inputFileName property.
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     * Sets the value of the inputFileName property.
     * @param value
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Hi,
Can u Please post the WSDL..here. I remember long back i resolved this kind of issue...when i was getting "*parameters is already defined in - - -*" while using ClientGen.
Once i will get the WSDL may be i can recall it...
If u have any problem in Posting the WSDL..in Forums .. then let me know I will send my E-Mail Address...
As far as i remember ..it usually happens when we Run ClientGen task of WLS81 ON the WebService/WSDL generated by WebLogic 9.x or Above. Please let me know if this is the Case with you as well... . I remember there is a Patch for it...for WLS8 ClientGen task...I dont remember the Patch Number Exactly.
Just For testing:
Just Use WLS9.x ClientGen task On the Same WSDL
<taskdef name="clientgen" classname="weblogic.wsee.tools.anttasks.ClientGenTask" />
I am sure you will not see this issue... because the issue is there only with WLS8 Clientgen...
Thanks
Jay SenSharma
http://jaysensharma.wordpress.com (WebLogic Wonders Are Here)
Edited by: Jay SenSharma on Jan 8, 2010 4:32 PM
Edited by: Jay SenSharma on Jan 8, 2010 4:34 PM

How to create java classes when multiple xsd files with same root element

Hi,
I got below error
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regards
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Gregory:
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set define ?
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package my;
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HTH, Marcelo.

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I was wondering if there's a platform independent way to call a java class from my program.

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Hi ..... can somebody plz tell me
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Edited by: okun on May 16, 2010 8:40 PM
Edited by: okun on May 16, 2010 8:41 PM
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georgemc wrote:
To answer your impending question, either the method you're calling has to be static, or you need an instance of that other class to invoke it against. Prefer the latterAnd to your impending question after that: no, don't use the Singleton pattern.

How to produce Java class from xsd programmatically?

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