Learning Path: Java & XML

Right now I'm learning my way through Java as a novice to programming aside from a little bit of script language knowledge. I want to start developing Web Services using Java, XML/SOAP. Being a beginner should I wait until I have a strong foundation in Java or can XML/SOAP be learned concurrently to Java?
As for specific Java technologies is ther ea specific path that should be followed? I'd like to learn JavaBeans and JSP, should one be studied before the other?

One doesn't really build on the other, so there's no required path to follow. Since XML is as OO as a scripting language gets, there's no reason you can't learn it along with Java; but using XML doesn't require a strong programming background.
As for JavaBeans and JSPs, again they're totally separate and one doesn't require the other. If you're doing a lot of GUI building and writing code you plan to reuse, learn about JavaBeans soon. On the other hand, if you're main goal is web development, you'll want to pick up Servlets and JSPs sooner.

Similar Messages

Using Java XML 1.5 toolkit instead of sapxmltoolkit for xslt mappings

Hi All
   We have a case whereby our xlst requires a number of customised java class functions as we are porting webmethods systems across to PI.
eg in the xslt adding
<xsl:when test="function-available('java:concat">
    <xsl:value-of select="java:concat($first, $last, $inputparam)"/>
We are running sap PI 7.1 ehp1. I have been referring to a number of posts on how to complete these tasks.
namely we have implemented the example as provided in:
    http://help.sap.com/saphelp_nwpi71/helpdata/EN/73/f61eea1741453eb8f794e150067930/frameset.htm
This only works if "Sap XML Toolkit" is enabled in the operational mapping.
Left unticked (default setting in the mapping) whenever a testcase is run I end up with the error "could not compile sytle sheet".
I would like to use the Java 1.5 xml processing capability as it is supposed to perform better than the sapxmltoolkit option and support for the latter will be discontinued in future.
Has anyone been able run the case with sapxmltoolkit enabled?
If so did you add any other libraries for java xml 1.5?
thanks

Thanks, I would have thought as much, but theres no guide on the deployment.
For now i assume this will fit into the java/ext area and Pi would need a reboot after the libraries are copied.
Has anyone deployed the additional libraries to PI.

Implementing XAdES in Java XML Digital Signature API

Hi,
I've got some problems with implementing XAdES standard with Java XML Digital Signature API. Below is a code (SignatureTest1), that produces a digital signature with some XAdES tags placed in <ds:Object> tag. The signature is later validated with a Validator class. Everything works fine, until I set a XAdES namespace (SignatureTest1.xadesNS="http://uri.etsi.org/01903/v1.3.2#"). In this case validation of XAdES elements fails.
The reason of validation failture is a difference between arguments passed to a digest method when document is being signed and validated. When the document is being signed a log looks like this:
FINER: Pre-digested input:
2007-08-21 15:38:44 org.jcp.xml.dsig.internal.DigesterOutputStream write
FINER: <SignedProperties xmlns:ds="http://www.w3.org/2000/09/xmldsig#" Id="SignP"></SignedProperties>
2007-08-21 15:38:44 org.jcp.xml.dsig.internal.dom.DOMReference digest
FINE: Reference object uri = #SignP
2007-08-21 15:38:44 org.jcp.xml.dsig.internal.dom.DOMReference digest
FINE: Reference digesting completed,but while validating:
FINER: Pre-digested input:
2007-08-21 15:38:44 org.jcp.xml.dsig.internal.DigesterOutputStream write
FINER: <SignedProperties xmlns="http://uri.etsi.org/01903/v1.3.2#" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" Id="SignP"></SignedProperties>
2007-08-21 15:38:44 org.jcp.xml.dsig.internal.dom.DOMReference validate
FINE: Expected digest: MAQ/vctdkyVHVzoQWnOnQdeBw8g=
2007-08-21 15:38:44 org.jcp.xml.dsig.internal.dom.DOMReference validate
FINE: Actual digest: D7WajkF0U5t1GnVJqj9g1IntLQg=
2007-08-21 15:38:44 org.jcp.xml.dsig.internal.dom.DOMXMLSignature validate
FINE: Reference[#SignP] is valid: falseHow can I fix this?
Signer class:
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import javax.xml.crypto.dom.DOMStructure;
import javax.xml.crypto.dsig.CanonicalizationMethod;
import javax.xml.crypto.dsig.DigestMethod;
import javax.xml.crypto.dsig.Reference;
import javax.xml.crypto.dsig.SignatureMethod;
import javax.xml.crypto.dsig.SignedInfo;
import javax.xml.crypto.dsig.Transform;
import javax.xml.crypto.dsig.XMLObject;
import javax.xml.crypto.dsig.XMLSignature;
import javax.xml.crypto.dsig.XMLSignatureFactory;
import javax.xml.crypto.dsig.dom.DOMSignContext;
import javax.xml.crypto.dsig.dom.DOMValidateContext;
import javax.xml.crypto.dsig.keyinfo.KeyInfo;
import javax.xml.crypto.dsig.keyinfo.KeyInfoFactory;
import javax.xml.crypto.dsig.keyinfo.KeyValue;
import javax.xml.crypto.dsig.spec.C14NMethodParameterSpec;
import javax.xml.crypto.dsig.spec.TransformParameterSpec;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import com.sun.org.apache.xml.internal.security.utils.IdResolver;
public class SignatureTest1 {
     public static String xadesNS=null;//"http://uri.etsi.org/01903/v1.3.2#";
     public static String signatureID="Sig1";
     public static String signedPropID="SignP";
     public static void main(String[] arg) {
        try{
          XMLSignatureFactory fac = XMLSignatureFactory.getInstance("DOM");
          List<Reference> refs = new ArrayList<Reference>();
          Reference ref1 = fac.newReference
              ("", fac.newDigestMethod(DigestMethod.SHA1, null),
                  Collections.singletonList
                (fac.newTransform
               (Transform.ENVELOPED, (TransformParameterSpec) null)),
               null, null);
          refs.add(ref1);
          Reference ref2 = fac.newReference("#"+signedPropID,fac.newDigestMethod(DigestMethod.SHA1,null),null,"http://uri.etsi.org/01903/v1.3.2#SignedProperties",null);
          refs.add(ref2);
          SignedInfo si = fac.newSignedInfo
              (fac.newCanonicalizationMethod
               (CanonicalizationMethod.INCLUSIVE_WITH_COMMENTS,
                (C14NMethodParameterSpec) null),
               fac.newSignatureMethod(SignatureMethod.DSA_SHA1, null),
               refs);
         KeyPairGenerator kpg = KeyPairGenerator.getInstance("DSA");
          kpg.initialize(512);
          KeyPair kp = kpg.generateKeyPair();
          KeyInfoFactory kif = fac.getKeyInfoFactory();
          KeyValue kv = kif.newKeyValue(kp.getPublic());
         KeyInfo ki = kif.newKeyInfo(Collections.singletonList(kv));
          DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
          dbf.setNamespaceAware(true);
          Document doc =
              dbf.newDocumentBuilder().parse("purchaseOrder.xml");
          DOMSignContext dsc = new DOMSignContext
              (kp.getPrivate(), doc.getDocumentElement());
          dsc.putNamespacePrefix(XMLSignature.XMLNS, "ds");
          Element QPElement = createElement(doc, "QualifyingProperties",null,xadesNS);
        QPElement.setAttributeNS(null, "Target", signatureID);
        Element SPElement = createElement(doc, "SignedProperties", null,xadesNS);
        SPElement.setAttributeNS(null, "Id", signedPropID);
        IdResolver.registerElementById(SPElement, signedPropID);
        QPElement.appendChild(SPElement);
        Element UPElement = createElement(doc, "UnsignedProperties", null,xadesNS);
        QPElement.appendChild(UPElement);
        DOMStructure qualifPropStruct = new DOMStructure(QPElement);
        List<DOMStructure> xmlObj = new ArrayList<DOMStructure>();
        xmlObj.add(qualifPropStruct);
        XMLObject object = fac.newXMLObject(xmlObj,"QualifyingInfos",null,null);
        List objects = Collections.singletonList(object);
        XMLSignature signature = fac.newXMLSignature(si, ki,objects,signatureID,null);
          signature.sign(dsc);
          OutputStream os = new FileOutputStream("signedPurchaseOrder.xml");
          TransformerFactory tf = TransformerFactory.newInstance();
          Transformer trans = tf.newTransformer();
          trans.transform(new DOMSource(doc), new StreamResult(os));
        }catch(Exception e){
             e.printStackTrace();
        try{
        Validator.main(null);
        }catch(Exception e){
             System.out.println("Validator exception");
             e.printStackTrace();
     public static Element createElement(Document doc, String tag,String prefix, String nsURI) {
          String qName = prefix == null ? tag : prefix + ":" + tag;
         return doc.createElementNS(nsURI, qName);
}Validator class:
import javax.xml.crypto.*;
import javax.xml.crypto.dsig.*;
import javax.xml.crypto.dom.*;
import javax.xml.crypto.dsig.dom.DOMValidateContext;
import javax.xml.crypto.dsig.keyinfo.*;
import java.io.FileInputStream;
import java.security.*;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
* This is a simple example of validating an XML
* Signature using the JSR 105 API. It assumes the key needed to
* validate the signature is contained in a KeyValue KeyInfo.
public class Validator {
    // Synopsis: java Validate [document]
    //       where "document" is the name of a file containing the XML document
    //       to be validated.
    public static void main(String[] args) throws Exception {
     // Instantiate the document to be validated
     DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
     dbf.setNamespaceAware(true);
     Document doc =
            dbf.newDocumentBuilder().parse(new FileInputStream("signedPurchaseOrder.xml"));
     // Find Signature element
     NodeList nl =
         doc.getElementsByTagNameNS(XMLSignature.XMLNS, "Signature");
     if (nl.getLength() == 0) {
         throw new Exception("Cannot find Signature element");
     // Create a DOM XMLSignatureFactory that will be used to unmarshal the
     // document containing the XMLSignature
     XMLSignatureFactory fac = XMLSignatureFactory.getInstance("DOM");
     // Create a DOMValidateContext and specify a KeyValue KeySelector
        // and document context
     DOMValidateContext valContext = new DOMValidateContext
         (new KeyValueKeySelector(), nl.item(0));
     // unmarshal the XMLSignature
     XMLSignature signature = fac.unmarshalXMLSignature(valContext);
     // Validate the XMLSignature (generated above)
     boolean coreValidity = signature.validate(valContext);
     // Check core validation status
     if (coreValidity == false) {
             System.err.println("Signature failed core validation");
         boolean sv = signature.getSignatureValue().validate(valContext);
         System.out.println("signature validation status: " + sv);
         // check the validation status of each Reference
         Iterator i = signature.getSignedInfo().getReferences().iterator();
         for (int j=0; i.hasNext(); j++) {
          boolean refValid =
              ((Reference) i.next()).validate(valContext);
          System.out.println("ref["+j+"] validity status: " + refValid);
     } else {
             System.out.println("Signature passed core validation");
     * KeySelector which retrieves the public key out of the
     * KeyValue element and returns it.
     * NOTE: If the key algorithm doesn't match signature algorithm,
     * then the public key will be ignored.
    private static class KeyValueKeySelector extends KeySelector {
     public KeySelectorResult select(KeyInfo keyInfo,
                                        KeySelector.Purpose purpose,
                                        AlgorithmMethod method,
                                        XMLCryptoContext context)
            throws KeySelectorException {
            if (keyInfo == null) {
          throw new KeySelectorException("Null KeyInfo object!");
            SignatureMethod sm = (SignatureMethod) method;
            List list = keyInfo.getContent();
            for (int i = 0; i < list.size(); i++) {
          XMLStructure xmlStructure = (XMLStructure) list.get(i);
                 if (xmlStructure instanceof KeyValue) {
                    PublicKey pk = null;
                    try {
                        pk = ((KeyValue)xmlStructure).getPublicKey();
                    } catch (KeyException ke) {
                        throw new KeySelectorException(ke);
                    // make sure algorithm is compatible with method
                    if (algEquals(sm.getAlgorithm(), pk.getAlgorithm())) {
                        return new SimpleKeySelectorResult(pk);
            throw new KeySelectorException("No KeyValue element found!");
        //@@@FIXME: this should also work for key types other than DSA/RSA
     static boolean algEquals(String algURI, String algName) {
            if (algName.equalsIgnoreCase("DSA") &&
          algURI.equalsIgnoreCase(SignatureMethod.DSA_SHA1)) {
          return true;
            } else if (algName.equalsIgnoreCase("RSA") &&
                       algURI.equalsIgnoreCase(SignatureMethod.RSA_SHA1)) {
          return true;
            } else {
          return false;
    private static class SimpleKeySelectorResult implements KeySelectorResult {
     private PublicKey pk;
     SimpleKeySelectorResult(PublicKey pk) {
         this.pk = pk;
     public Key getKey() { return pk; }
}PurchaseOrder.xml
<?xml version="1.0" encoding="UTF-8"?>
<PurchaseOrder>
<Item number="130046593231">
<Description>Video Game</Description>
<Price>10.29</Price>
</Item>
<Buyer id="8492340">
<Name>My Name</Name>
<Address>
   <Street>One Network Drive</Street>
   <Town>Burlington</Town>
   <State>MA</State>
   <Country>United States</Country>
   <PostalCode>01803</PostalCode>
</Address>
</Buyer>
</PurchaseOrder>signedPurchaseOrder.xml with XAdES namespace:
<?xml version="1.0" encoding="UTF-8" standalone="no"?><PurchaseOrder>
<Item number="130046593231">
<Description>Video Game</Description>
<Price>10.29</Price>
</Item>
<Buyer id="8492340">
<Name>My Name</Name>
<Address>
   <Street>One Network Drive</Street>
   <Town>Burlington</Town>
   <State>MA</State>
   <Country>United States</Country>
   <PostalCode>01803</PostalCode>
</Address>
</Buyer>
<ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#" Id="Sig1"><ds:SignedInfo><ds:CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315#WithComments"/><ds:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#dsa-sha1"/><ds:Reference URI=""><ds:Transforms><ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/></ds:Transforms><ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/><ds:DigestValue>tVicGh6V+8cHbVYFIU91o5+L3OQ=</ds:DigestValue></ds:Reference><ds:Reference Type="http://uri.etsi.org/01903/v1.3.2#SignedProperties" URI="#SignP"><ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/><ds:DigestValue>MAQ/vctdkyVHVzoQWnOnQdeBw8g=</ds:DigestValue></ds:Reference></ds:SignedInfo><ds:SignatureValue>lSgzfZCRIlgrgr6YpNOdB3XWdF9P9TEiXfkNoqUpAru/I7IiyiFWJg==</ds:SignatureValue><ds:KeyInfo><ds:KeyValue><ds:DSAKeyValue><ds:P>/KaCzo4Syrom78z3EQ5SbbB4sF7ey80etKII864WF64B81uRpH5t9jQTxeEu0ImbzRMqzVDZkVG9
xD7nN1kuFw==</ds:P><ds:Q>li7dzDacuo67Jg7mtqEm2TRuOMU=</ds:Q><ds:G>Z4Rxsnqc9E7pGknFFH2xqaryRPBaQ01khpMdLRQnG541Awtx/XPaF5Bpsy4pNWMOHCBiNU0Nogps
QW5QvnlMpA==</ds:G><ds:Y>p48gU203NGPcs9UxEQQQzQ19KBtDRGfEs3BDt0cbCRJHMh3EoySpeqOnuTeKLXuFr96nzAPq4BEU
dNAc7XpDvQ==</ds:Y></ds:DSAKeyValue></ds:KeyValue></ds:KeyInfo><ds:Object Id="QualifyingInfos"><QualifyingProperties Target="Sig1" xmlns="http://uri.etsi.org/01903/v1.3.2#"><SignedProperties Id="SignP"/><UnsignedProperties/></QualifyingProperties></ds:Object></ds:Signature></PurchaseOrder>

I believe the problem is that you are not explicitly adding the xades namespace
attribute to the SignedProperties element before generating the signature. Thus,
the namespace attribute is not visible when canonicalizing, but when you serialize the
DOM tree to an output stream, (for reasons I'm not entirely sure why), the namespace
attribute is visible and is added to the SignedProperties element, which breaks the
signature.
You must always explicitly add namespace attributes using the Element.setAttributeNS
method. Try changing the following code from:
Element SPElement = createElement(doc, "SignedProperties", null,xadesNS);
to:
Element SPElement = createElement(doc, "SignedProperties", null,xadesNS);
SPElement.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns", xadesNS);

Java XML Parser:Null Pointer exception in EntityReader

I got NullPointer Exception when trying to parse a XML file which
is pointed by a net URL, (say "http://www..."). The code causing
problem is like:
parser.parse(new URL("http://www.../demo.xml"));
the exception I got is:
java.lang.NullPointerException
java.lang.NullPointerException
at oracle.xml.parser.EntityReader.initXMLInput(Compiled
Code)
at
oracle.xml.parser.EntityReader.<init>(EntityReader.java:64)
at oracle.xml.parser.XMLParser.parse(XMLParser.java:245)
at DemoXML.main(DemoXML.java:47)
The very same code works fine with a simple local file URL and we
also know that the URL exists in correct in XML format because we
can open the URL with IE5.
Another question - where can we get the source for the Java XML
Parser.
null

This bug has already been reported and will be fixed in our next
release.
Oracle XML Team
http://technet.oracle.com
Oracle Technology Network
Fiona Lu (guest) wrote:
: I got NullPointer Exception when trying to parse a XML file
which
: is pointed by a net URL, (say "http://www..."). The code
causing
: problem is like:
: parser.parse(new URL("http://www.../demo.xml"));
: the exception I got is:
: java.lang.NullPointerException
: java.lang.NullPointerException
: at oracle.xml.parser.EntityReader.initXMLInput
(Compiled
: Code)
: at
: oracle.xml.parser.EntityReader.<init>(EntityReader.java:64)
: at oracle.xml.parser.XMLParser.parse
(XMLParser.java:245)
: at DemoXML.main(DemoXML.java:47)
: The very same code works fine with a simple local file URL and
we
: also know that the URL exists in correct in XML format because
we
: can open the URL with IE5.
: Another question - where can we get the source for the Java
XML
: Parser.
null

All offering not displaying in Learning Path

Hi,
We have created a course which contains 3 offerings (with different delivery modes), each offering have 1 class.
When we attach this course to a learning path and an employee subscribes to this learning path, only one offering is getting displayed to employee.
Can we show all offerings under a course in a learning path.
Regards
Manuj

Hi, Manuj.
Your Learners should be able to see all Offerings that have Classes that are currently active (have no end date or an end date in the future).
Here are three things to check:
The Learner you are testing with has the appropriate Learner Access defined if the Restricted check box is selected for the Classes that belong to the Offerings
The Classes that you've created under the three Offerings are currently active
You are within time period set for the Enrollment Dates listed for each of the active Classes
Anne
[email protected]
www.synergycode.com
877-487-9637 ext. 87

"package java.xml.registry does not exist" error in NetBeans

Hi all
I'm using netbeans for developing webservices and and have to use JAXR. I have downloaded and installed jwsdp1.5.
When I view the source code for the JAXR sample java files that accompany the java EE tutorial in the NetBeans IDE Source Editor, I get the error : package java.xml.registry does not exist.
However, the release note for NetBeans says that it supports JAXR.
Also, when I compile and run the same files using DOS and the ant command, the files work.
Can someone please tell me what to do and how to work on JAXR clients in NetBeans because the Help files don't have any documentation on it nor does the NeBeans Field Guide?

Do you have the jaxrpc-api.jar and jaxprc-ri.jar in your classpath?
They are in <wspack1.1 installation>/jaxrpc-1.0.2/lib
Regards,
Bhakti

Java XML and podcasts

Hi all,,
Im just looking for some help with a java xml passer program. Im trying to create a program that will read specific tags and the values that are represented by these tags in the xml file..I have found the following code
import java.io.File;
import org.w3c.dom.Document;
import org.w3c.dom.*;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.DocumentBuilder;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
public class ReadAndPrintXMLFile{
public static void main (String argv []){
try {
DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
Document doc = docBuilder.parse (new File("book.xml"));
// normalize text representation
doc.getDocumentElement ().normalize ();
System.out.println ("Root element of the doc is " + doc.getDocumentElement().getNodeName());
NodeList listOfPersons = doc.getElementsByTagName("person");
int totalPersons = listOfPersons.getLength();
System.out.println("Total no of people : " + totalPersons);
for(int s=0; s<listOfPersons.getLength() ; s++){
Node firstPersonNode = listOfPersons.item(s);
if(firstPersonNode.getNodeType() == Node.ELEMENT_NODE){
Element firstPersonElement = (Element)firstPersonNode;
NodeList firstNameList = firstPersonElement.getElementsByTagName("first");
Element firstNameElement = (Element)firstNameList.item(0);
NodeList textFNList = firstNameElement.getChildNodes();
System.out.println("First Name : " + ((Node)textFNList.item(0)).getNodeValue().trim());
NodeList lastNameList = firstPersonElement.getElementsByTagName("last");
Element lastNameElement = (Element)lastNameList.item(0);
NodeList textLNList = lastNameElement.getChildNodes();
System.out.println("Last Name : " + ((Node)textLNList.item(0)).getNodeValue().trim());
NodeList ageList = firstPersonElement.getElementsByTagName("age");
Element ageElement = (Element)ageList.item(0);
NodeList textAgeList = ageElement.getChildNodes();
System.out.println("Age : " + ((Node)textAgeList.item(0)).getNodeValue().trim());
}//end of if clause
}//end of for loop with s var
}catch (SAXParseException err) {
System.out.println ("** Parsing error" + ", line " + err.getLineNumber () + ", uri " + err.getSystemId ());
System.out.println(" " + err.getMessage ());
}catch (SAXException e) {
Exception x = e.getException ();
((x == null) ? e : x).printStackTrace ();
}catch (Throwable t) {
t.printStackTrace ();
//System.exit (0);
}//end of main
}Im trying to develop this code to work with podcast xml files..Im having a few issuses with this program.. Is there anyone out there that has created a program like this that works with podcast xml files??
Anyone got any suggestions.Please.

XML and XSL transformations can be done using most languages and in Java there is strong support for these techniques.
It worries me a little bit that you ask this question though. XML and XSL are no more than a tool to solve SOME problems, but I get the idea that you want to put them on your resume as if they are your main talent. The tool set of the developer is much broader than just some techniques to format and transform data, you need to be able to solve problems in the most efficient way possible, not limiting yourself to only a handful of techniques that you just happen to know a lot about.
What I am trying to say is: it is always good to have knowledge of these techniques, but don't go thinking it is going to guarantee you a job.

Query on XML Beans replacing Castor Java -XML Bindings

Hello,
We use Castor XML Framework for today Java - XML bindings and were looking for XML Beans replacement.
One of the key problems we face in using XML (maybe a flawed design) is we create XSD for our applications and run Castor to generate Java Classes as Libraries (XMLFramework.jar).
Applications are compiled with these Java libraries and Castor is used to Marshal the Java Object as XML Document when invoking a remote API and at the receiving side it is used to unmarshal back the XML document to Java Object.
Major issues we have seen is that if any XSD (that defines application ICD) changes, we need to re-generate Castor Java classes (new XMLFramework.jar) and re-compile applications that were using these classes with new JAR files..... Thus for small XSD changes the impact is in lot of applications (where an application is an EAR deployed on WLS)
Does XMLBeans help here that I can change XSD without changing all the end-points that use Classes generated out of these XSDs (when additing mandatory or optinal elements) ?
Or there is a flaw in which we have used the Java-XML binding framework like Castor and XMLBeans do not help much ?

Can someone please suggest on how I can go about
converting an XML file into word format using Java
?How about POI?

Learning path in employee appraisal

Hi All,
As manager suppose during employee appraisal I want to add some courses in Learning path section in employee appraisal but I do not find the training that I want when I click on Add course button on Learning path section, what can we do in this case to add an additional training needs for the employee and this training not available in Learning management , do you recommend me to add descriptive flexfild , if yes how ?
Best Regards,

You said Possible/Required courses should be available in OLM. it is okay but suppose the manager has a new courses and he wants his employees to get it but he could not find it in OLM.
What can he do in this case?
For this manager should ask content developer/OLM admin to register this course in OLM then futher he could assign to employee.
how can he suggest offline training which not part of OLM?
Manager can suggest to go for this PPT/PDF/Anyother as offline traninng if required.
Thanks

I want to learn latest Java Programming

Hello,
I learned Java programming in 2006 in India. I am a student of NIIT and completed Diploma in IT.
Right now, I am SEO Manager in leading IT company.
I want to restart my java study at my own.
So, How can I learn latest Java programming?
If you have any ideas so, help me.

Mistry-Anand wrote:
Hello,
Right now, I am SEO Manager in leading IT company.
I want to restart my java study at my own.
So, How can I learn latest Java programming?
If you have any ideas so, help me.stick to management. Your attitude shows you're well suited to that, utterly unsuited to doing work of your own that involves any independent creative thought whatsoever.

What is the best way to learn SAP Java

Hi,
I would like to understand basic principles of SAP Java, to check how it is working, primarily J2EE components like JMS, WS, EJB, Persistence... As I'm ABAP and PI consultant, I see this as my next step, sure I'm not aiming to be experienced Java developer beacuse this would require much more time than I have now.
So far I read "Foundations of Java for ABAP Programmers" but I think that this is just a begining. I want to learn more stuff about SAP J2EE and J2SE is for me, let say, clear.
Also I start reading "Java Programming With The Sap Web Application Server" as my next book about SAP Java, but it is not quite that I don't like this book, it is somehow not interested for me.
So I would like to hear your suggestions what is the best way or the best approach to learn SAP Java. I see this as future help for one ABAP and PI consultant. Also I've done some Mapping developments for PI (SAX and DOM parser), so really think for me to know Java better it will be "bigger plus" for me.
kr
mario

I will suggest you SAP Elearning section on SDN about Java Development.
Below is the link....
http://www.sdn.sap.com/irj/scn/java-elearning?dprpp=all
It contains lot of practical examples which will keep you interested as well..
But you wil lhave to be very selective there on whaich topic you wish to kick start.........
For example there is one called :
Java for ABAP Programmers
ABAP Objects for Java Developers
SAP Java World for ABAP Programmers
Java Mapping in Exchange Infrastructure

Need Guidance on Oracle SCM functional learning paths

Hi,
I've just started understanding Oracle EBS SCM functionalities & used to the EBS system in terms of usage. Need help and learning paths on SCM modules to start off. Any information regarding knowledge base would be highly appreciated. Thank you.
Regards,
MK

Will you have access to both arrays at the same time? In that case, this could be your plan:
- move ocr and voting disk to new volumes according to metalink note 428681.1
you can replace the ocr with the system up and running but you'll have to shut down the clusterware for moving the voting disk
- migrate asm (online)
create the new volumes on the new array, then perform an 'alter diskgroup DGNAME add disk '/dev/dsk/newdevice'', wait until the rebalancing is done, then do 'alter diskgroup DGNAME drop disk /dev/dsk/olddisc''. Do this with both diskgroups, wait until the rebalancing is over and unplug the old array
Bjoern
edit: in 11g you can even move the voting disk online, you only have to shut down the clusterware on 10g rac
Edited by: Bjoern Rost on Sep 18, 2009 2:18 PM

How to install JAVA , XML on 10.2.0.4.0 (AIX).

Hi All,
How to install JAVA , XML on 10.2.0.4.0 (AIX).
Any document/link/ metalink doc would be highly appreciated
Thanks In advance
ivw

Thanks for reply.
I dont have dbca .. only ssh access, no gui
sqlplus '/ as sysdba'
SQL*Plus: Release 10.2.0.4.0 - Production on Fri Aug 21 02:24:59 2009
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, Data Mining and Real Application Testing options
SQL> select count(*), owner from all_objects
where object_type like '%JAVA%' group by owner;
no rows selected
so java is not loaded in the database
I believe in 9i we have to run this
@?/javavm/install/initjvm.sql
@?/xdk/admin/initxml.sql
@?/xdk/admin/xmlja.sql
@?/rdbms/admin/catjava.sql
Is there is any change in 10g regarding these above steps?
Edited by: ivw on Aug 20, 2009 9:28 PM

SAP BW - learning path and Estimated time line.

Hi,
I am working with Business Objects for few years. I am interested in learn SAP BW and start my career in SAP BW with Business Objects. I would appreciate if you could please let me know the learning path and approximate time line.
Thanks,
Mike

Hi Mike:
I see your concern.
BO is primarily a front end tool and it is simple to learn. So new developers can pick it up easily and start delivering business needs quickly.
In fact I believe front end tools these days are so user friendly that even Business Users can learn fast and adapt and get really good at it.
I think learning and understanding the back end data warehousing tools with specialized skills in Data Modeling and ETL will be extra added value to employers in today's market. Plus Interpersonal skills and interfacing with business users is not a function that can be easily outsourced.
If you already have expertise in Bus Intelligence, I would recommend staying in BI and learning the back end tools. Learning Other SAP modules should supplement your BI skills and not to replace your BI focus.
BI as an Industry is still evolving and growing. Plenty of room to grow. BI can deliver business critical decision support.
Knowledge of Business Intelligence functions (Functional knowledge) will come in especially handy for employers when designing back end (data modeling) and suggesting the right course of action for designing back end. Your existing front end knowledge will be a great help for data modeling recommendations.
I am actually pursuing a second MS in ERP at http://dce.mst.edu/. I take classes on line since i live 100 miles from the university. I sometimes am busy at work and cannot attend live classes. So i listen to the recordings after work hours and do my assignments and tests and exams after hours as well.
The best thing about being in school, is i switch to learning mode and set aside my past experience and become a student willing to learn from the professor and the other students.
Link to SAP University Alliance -
University Alliances Overview
University Competence Centers in the America's - Univ Comp Centers in North America
http://www.sdn.sap.com/irj/uac
I personally see a need in the Industry for highly engineered BI Solutions. Quiet a few SAP Clients today have experienced not so well engineered BI solutions from less skilled BI resources leading to poor performance and poor user adoption.
Thats why i feel there is a great need for qualified BI resources to deliver optimal BI solutions and drive greater user adoption. The more users adopting SAP BI and BOBJ, the better opportunities for all of us.
Concerning your comment about ABAP - I know minimal ABAP learned on the job as a BW developer / analyst. I tend to find solutions through data modeling as opposed to using ABAP. SAP BW has standardized many many common reporting functions and on occasions i write some ABAP lookups. But during the initial stages of my career as a BW Analyst i used to have the ABAP team write any code i needed.
I even developed an ABAP report in ECC by providing the ABAP team with a detailed flow diagram of the logic. But lately i have learned to write some ABAP code myself.
Good Luck.
MP.

Path to XML & Caurina Library not working

var strXMLPath:String = ("Volumes/MacintoshHD2/XML/Slideshow/slideshow-data.xml"); (This is my path to XML within my FLA)
import Volumes.MacintoshHD2.XML.Slideshow.caurina.transitions.Tweener; (This is my import path within my FLA for Tweener)
package Volumes.MacintoshHD2.XMLSlideshow.caurina.transitions { (my path within Tweener.as).
("Volumes/MacintoshHD2/XML/Slideshow/Page/neutral/Flash/slideshow.prt2.fla") (this is the location of my FLA/SWF/HTML)
errors returned - could not be found -- access of undefined property -- 1172/1120
???? CAN ANYONE NOTICE ANY GLARING PROBLEMS WITH MY METHOD/SYNTAX I MAY BE MISSING ?????
---------------------------with the assumption the actual path structure is correct----------------------------------

you should be using a correct relative path. that looks like an attempt to use an absolute path but strXMLPath is not an absolute path. for example:
var strXMLPath:String = "../../../../slideshow-data.xml";
but why are you going out of your way to create such an awkward directory setup?

Learning Path: Java & XML

Similar Messages

Maybe you are looking for