OracleDataSourceEnumerator GetDataSources method returns empty

Hello,
I have a problem regarding the OracleDataSourceEnumerator.GetDataSources() method.
Its does not return any datasource listed in my tnsnames.ora.
I do have a full 10g client installed.
After that I installed odp.net . In both oracle homes I do have the tnsnames.ora file.
In the registry does the oracle_home parameter point to the odp.net home.
How can I see wich oracle home is used by odp.net?
Thanks in advance.

I have checked the operating system permission on the root directory and its sub directories and the user that's running that executes the prog has got the read access to all directories and sub directories.
Won't API will throw an exception if there program is not allowed to access the directories.
Just to eliminate the security permission option i have written a simple program that calls the native file system API using reflection and list the sub directories on the mount but this also returns an empty list, but if i do ls -ltr on the same directory it shows three sub directories
Class fileClass = cl.loadClass("java.io.FileSystem");
Method[] methods = fileClass.getDeclaredMethods();
Object fs = null;
Method list = null;
for (int i = 0; i < methods.length; i++) {
Method method = methods ;
System.out.println(method.getName());
if (method.getName().equals("getFileSystem")) {
method.setAccessible(true);
fs = method.invoke(null, null);
if (method.getName().equals("list")) {
method.setAccessible(true);
list = method;
System.out.println("FileSystem is : " + fs);
String a[] = (String[]) list.invoke(fs, new Object[] { new File(
args[0]) });
System.out.println(Arrays.asList(a));
Edited by: HarmanSingh on Jul 5, 2008 3:22 AM
Edited by: HarmanSingh on Jul 5, 2008 3:26 AM

Similar Messages

EntryProcessor invokeAll returning empty ConverterMap{}

Hi All,
I am trying to write a custom entryprocessor and whatever I return from the invokeAll method in the entryprocessor, I am always getting a empty ConverterMap{}. The code for the entryprocessor is as below:
public class CustomEP implements PortableObject, EntryProcessor {
     public CustomEP (){
public Map processAll(Set entries) {
          Map results=new HashMap ();
results.put ("1", "1");
System.out.println("Inside process All method");
          return results;
public Object process(Entry arg0) {
          Map results=new HashMap ();
results.put ("1", "1");
System.out.println("Inside process method");
          return results;
The client code to invoke this entryprocessor is as below:
Map results=cache.invokeAll(AlwaysFilter.INSTANCE, new CustomEP());
The processAll method on the Coherence nodes is invoked but if the print the results on the client side it return empty ConverterMap{}
On the other hand, if I invoke process method of CustomEP as below:
Map results=(Map) cache.invoke(AlwaysFilter.INSTANCE, new CustomEP());
I get the desired results. Please help me with the details why it is happening this way when the return type of the processAll is a Map.
Thanks a lot!
Regards,
S

911767 wrote:
Hi Robert and JK,
Thank you for your reply and time!
I could not find these details in any of the documentation that specifies keys passed in the result should be subset of the keys passed to the processAll method. Anyways, my problem is to invoke server-side code (avoid de-serialization) by passing a filter and then create a entirely new map (key and value will be different from the entries extracted from the passed filter) by reading the data from the passed entries. How can I implement it?
I am thinking to use aggregator as they are read-only and faster but again how to implement it using:
public Object aggregate(Set entries){
Again, I am getting an empty Map so is it necessary that the object returned should have keys matching the set of the entries passed to this method.
Secondly, there are other methods such as, finalizeResult() and init() if I extend AbstractAggregator, do I need to implement them and if yes, how? The entries set passed to the aggregate() method may not reside on the same node.
Please advise!
Regards,
SHi S,
the process() return value object, or the entry value objects in the map returned by processAll() can be arbitrary objects. So you just return a map from process(), and return a map as the entry value in the result map from processAll().
The AbstractAggregator has a fairly badly documented contract in the Javadoc (does not properly cover the values received in different scenarios for invocation). You should probably read the section about it in the Coherence book, that explains leveraging AbstractAggregator in significantly more details. It also happens to be in the sample chapter, but I recommend reading the entire book.
I am not sure about the issues relating to posting links to PDFs on Packt's webpage, so I won't do that. Please go to Packt's webpage (http://www.packtpub.com ), look for the Coherence book there and download the sample chapter (or order the book).
In short, all 3 to-be-implemented methods (init(), process(), finalizeResult()) in AbstractAggregator are called both on the server and on the caller side. You can distinguish which side you are on from looking at both the passed in fFinal boolean parameter and the m_fParallel attribute tof the aggregator instance.
There are 3 cases:
- non-parallel aggregation processing extracted values (m_fParallel is false, I don't remember what fFinal is in this case),
- parallel aggregation storage side processing extracted values (if I correctly remember, m_fParallel is true, fFinal is false),
- parallel aggregation caller side processing parallel results (m_fParallel and fFinal are both true).
Depending on which side you are on, the process method takes different object types (on server side it receievs the extracted value, on caller side it receives a parallel result object instance).
You SHOULD NOT override any of the other methods (e.g. aggregate() which you mentioned).
The advantage of this approach is that the AbstractAggregator subclass instance can pass itself off as a parallel-aggregator instance.
You should put together a temporary result in a member attribute of the AbstractAggregator subclass, which also means that it will likely not be thread-safe, but at the moment it is not necessary for it to be thread-safe either as it is called only on a single-thread.
Best regards,
Robert
Edited by: robvarga on Feb 3, 2012 10:38 AM

Xslt copy-of creates a xml which returns empty while trying to access elements using XPATH

Hi
I am trying to do a copy-of function using the XSLT in jdev. This is what I do
    <xsl:param name="appdataDO"/>
    <xsl:template match="/">
    <ns1:applicationData>
      <ns1:applicationId>
        <xsl:value-of select="$appdataDO/ns1:applicationData/ns1:applicationId"/>
      </ns1:applicationId>
      <xsl:copy-of select="/fslo:ExternalapplicationData/fslo:ApplicationsHDRAddInfo">
      </xsl:copy-of>
    </ns1:applicationData>
    </xsl:template>
    </xsl:stylesheet>
After this I can see the document created in the process flow as this :
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    <ns1:applicationId>MMMM</ns1:applicationId>
    <ns2:ApplicationsHDRAddInfo>
    <ns3:genericFromBasePrimitive>iuoui</ns3:genericFromBasePrimitive>
    <ns4:EstimatedMarketValue>77</ns4:EstimatedMarketValue>
    <ns4:PropertyInsuranceFee>jih</ns4:PropertyInsuranceFee>
    <ns4:LoanOriginationFee>hjh</ns4:LoanOriginationFee>
    <ns4:RegistrarFee>kkkkk</ns4:RegistrarFee>
    <ns4:LoanCashInFee>hjh</ns4:LoanCashInFee>
    <ns4:LoanPaidInCashFlag>cddffgd</ns4:LoanPaidInCashFlag>
    </ns2:ApplicationsHDRAddInfo>
    </ns1:applicationData>
But whenever I am trying to extract any of the output nodes I am getting an empty result. I can copy the whole dataset into similar kind of variable.
But I am unable to get individual elements using XPATH.
I tried using exslt function for node set and xslt 2.0 without avail.
The namespaces might be the culprit here . The test method in the jdev is able to output a result but at runtime the xpath returns empty .
I have created another transform where I try to copy data from the precious dataobject to a simple string in another data object .
This is the test sample source xml for the transform created by jdev while testing with all namespaces, where I try to copy the data in a simple string in another data object.
    <applicationData xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.oracle.com/bpmpa/fs/ulo/types file:/C:/JDeveloper/NewAPP/Xfrm/xsd/ApplicationData.xsd" xmlns="http://xmlns.oracle.com/bpmpa/fs/ulo/types">
       <applicationId>applicationId289</applicationId>
       <ApplicationsHDRAddInfo>
          <genericFromBasePrimitive xmlns="http://xmlns.oracle.com/bpm/pa/extn/types/BasePrimitive">genericFromBasePrimitive290</genericFromBasePrimitive>
          <EstimatedMarketValue xmlns="http://xmlns.oracle.com/bpm/pa/extn/headerCategories/">291</EstimatedMarketValue>
          <PropertyInsuranceFee xmlns="http://xmlns.oracle.com/bpm/pa/extn/headerCategories/">PropertyInsuranceFee292</PropertyInsuranceFee>
          <LoanOriginationFee xmlns="http://xmlns.oracle.com/bpm/pa/extn/headerCategories/">LoanOriginationFee293</LoanOriginationFee>
          <RegistrarFee xmlns="http://xmlns.oracle.com/bpm/pa/extn/headerCategories/">RegistrarFee294</RegistrarFee>
          <LoanCashInFee xmlns="http://xmlns.oracle.com/bpm/pa/extn/headerCategories/">LoanCashInFee295</LoanCashInFee>
          <LoanPaidInCashFlag xmlns="http://xmlns.oracle.com/bpm/pa/extn/headerCategories/">LoanPaidInCashFlag296</LoanPaidInCashFlag>
       </ApplicationsHDRAddInfo>
    </applicationData>
And the xslt
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        <ns1:DefaultOutput>
          <ns1:attribute1>
            <xsl:value-of select="/fslo:applicationData/fslo:ApplicationsHDRAddInfo/custom:LoanOriginationFee"/>
          </ns1:attribute1>
        </ns1:DefaultOutput>
      </xsl:template>
This results in a empty attribute1. Any help will be appreciated .

Please delete attributeFormDefault="qualified" elementFormDefault="qualified" from your XSD
Please check the next link:
http://www.oraclefromguatemala.com.gt/?p=34

Java.nio select() method return 0 in my client application

Hello,
I'm developing a simple chat application who echo messages
But my client application loop because the select() method return 0
This is my code
// SERVER
package test;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.channels.SelectionKey;
import java.nio.channels.Selector;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
import java.util.Iterator;
import java.util.Set;
public class Server {
     private int port = 5001;
     public void work() {
          try {
               ServerSocketChannel serverSocketChannel = ServerSocketChannel.open();
               serverSocketChannel.configureBlocking(false);
               InetSocketAddress isa = new InetSocketAddress(port);
               serverSocketChannel.socket().bind(isa);
               Selector selector = Selector.open();
               serverSocketChannel.register(selector, SelectionKey.OP_ACCEPT);
               System.out.println("Listing on "+port);
               while(selector.select()>0) {
                    Set keys = selector.selectedKeys();
                    for(Iterator i = keys.iterator(); i.hasNext();) {
                         SelectionKey key = (SelectionKey) i.next();
                         i.remove();
                         if (key.isAcceptable()) {
                              ServerSocketChannel keyChannel = (ServerSocketChannel)key.channel();
                              SocketChannel channel = keyChannel.accept();
                              channel.configureBlocking(false);
                              channel.register(selector, SelectionKey.OP_READ );
                         } else if (key.isReadable()) {
                              SocketChannel keyChannel = (SocketChannel) key.channel();
                              String m = Help.read(keyChannel );
                              Help.write(m.toUpperCase(), keyChannel );
          } catch (IOException e) {
               e.printStackTrace();
     public static void main(String[] args) {
          Server s = new Server();
          s.work();
// CLIENT
package test;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.channels.SelectionKey;
import java.nio.channels.Selector;
import java.nio.channels.SocketChannel;
import java.util.Iterator;
import java.util.Set;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
public class Client extends JFrame {
     private String host = "localhost";
     private int port = 5001;
     private SocketChannel socketChannel;
     private Selector selector;
     public void work() {
          try {
               socketChannel = SocketChannel.open();
               socketChannel.configureBlocking(false);
               InetSocketAddress isa = new InetSocketAddress(host, port);
               socketChannel.connect(isa);
               selector = Selector.open();
               socketChannel.register(selector, SelectionKey.OP_CONNECT | SelectionKey.OP_READ );
               while(true) {
                    selector.select();
                    Set keys = selector.selectedKeys();
                    for(Iterator i = keys.iterator(); i.hasNext();) {
                         SelectionKey key = (SelectionKey) i.next();
                         i.remove();
                         if (key.isConnectable()) {
                              SocketChannel keyChannel = (SocketChannel) key.channel();
                              if (keyChannel.isConnectionPending()) {
                                   System.out.println("Connected "+keyChannel.finishConnect());
                         } else if (key.isReadable()) {
                              SocketChannel keyChannel = (SocketChannel) key.channel();
                              String m = Help.read(keyChannel);
                              display(m);
          } catch (IOException e) {
               e.printStackTrace();
     private void display(final String m) {
          SwingUtilities.invokeLater(new Runnable() {
               public void run() {
                    area.append(m+"\n");
                    textFieed.setText("");
     private void sendMessage(final String m) {
          Thread t = new Thread(new Runnable() {
               public void run() {
                    try {
                         Help.write(m, socketChannel);
                    } catch (IOException e) {
                         e.printStackTrace();
          t.start();
     public Client() {
          addWindowListener(new WindowAdapter() {
               public void windowClosing(WindowEvent e) {
                    System.exit(1);
          textFieed.addKeyListener(new KeyAdapter() {
               public void keyPressed(KeyEvent e) {
                    if (e.getKeyCode()== KeyEvent.VK_ENTER) {
                         String m = textFieed.getText();
                         sendMessage(m);
          area.setEditable(false);
          getContentPane().add(textFieed, "North");
          getContentPane().add(new JScrollPane(area));
          setBounds(200, 200, 400, 300);
          show();
     private String messageToSend;
     private JTextArea area = new JTextArea();
     JTextField textFieed = new JTextField();
     public static void main(String[] args) {
          Client s = new Client();
          s.work();
// HELPER CLASS
package test;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.channels.SocketChannel;
import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;
import java.nio.charset.CharsetEncoder;
public class Help {
     private static Charset charset = Charset.forName("us-ascii");
     private static CharsetEncoder enc = charset.newEncoder();
     private static CharsetDecoder dec = charset.newDecoder();
     private static void log(String m) {
          System.out.println(m);
     public static String read(SocketChannel channel) throws IOException {
          log("*** start READ");
          int n;
          ByteBuffer buffer = ByteBuffer.allocate(1024);
          while((n = channel.read(buffer)) > 0) {
               System.out.println("     adding "+n+" bytes");
          log(" BUFFER REMPLI : "+buffer);
          buffer.flip();
          CharBuffer cb = dec.decode(buffer);
          log(" CHARBUFFER : "+cb);
          String m = cb.toString();
          log(" MESSAGE : "+m);
          log("*** end READ");
          //buffer.clear();
          return m;
     public static void write(String m, SocketChannel channel) throws IOException {
          log("xxx start WRITE");
          CharBuffer cb = CharBuffer.wrap(m);
          log(" CHARBUFFER : "+cb);
          ByteBuffer buffer = enc.encode(cb);
          log(" BUFFER ALLOUE REMPLI : "+buffer);
          int n;
          while(buffer.hasRemaining()) {
               n = channel.write(buffer);
          System.out.println(" REMAINING : "+buffer.hasRemaining());
          log("xxx end WRITE");

Here's the fix for that old problem. Change the work method to do the following
- don't register interest in things that can't happen
- when you connect register based on whether the connection is complete or pending.
- add the OP_READ interest once the connection is complete.
This doesn't fix all the other problems this code will have,
eg.
- what happens if a write is incomplete?
- why does my code loop if I add OP_WRITE interest?
- why does my interestOps or register method block?
For code that answers all those questions see my obese post Taming the NIO Circus
Here's the fixed up Client code
// CLIENT
package test
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.channels.SelectionKey;
import java.nio.channels.Selector;
import java.nio.channels.SocketChannel;
import java.util.Iterator;
import java.util.Set;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
public class Client extends JFrame {
     private String host = "localhost";
     private int port = 5001;
     private SocketChannel socketChannel;
     private Selector selector;
     public void work() {
          try {
               socketChannel = SocketChannel.open();
               socketChannel.configureBlocking(false);
               InetSocketAddress isa = new InetSocketAddress(host, port);
               socketChannel.connect(isa);
               selector = Selector.open();
               int interest = 0;
               if(socketChannel.isConnected())interest = SelectionKey.OP_READ;
               else if(socketChannel.isConnectionPending())interest = SelectionKey.OP_CONNECT;
               socketChannel.register(selector, interest);
               while(true)
                    int nn = selector.select();
                    System.out.println("nn="+nn);
                    Set keys = selector.selectedKeys();
                    for(Iterator i = keys.iterator(); i.hasNext();)
                         SelectionKey key = (SelectionKey) i.next();
                         i.remove();
                         if (key.isConnectable())
                              SocketChannel keyChannel = (SocketChannel) key.channel();
                              System.out.println("Connected "+keyChannel.finishConnect());
                              key.interestOps(SelectionKey.OP_READ);
                         if (key.isReadable())
                              SocketChannel keyChannel = (SocketChannel) key.channel();
                              String m = Help.read(keyChannel);
                              display(m);
          } catch (IOException e) {
               e.printStackTrace();
     private void display(final String m) {
          SwingUtilities.invokeLater(new Runnable() {
               public void run() {
                    area.append(m+"\n");
                    textFieed.setText("");
     private void sendMessage(final String m) {
          Thread t = new Thread(new Runnable() {
               public void run() {
                    try {
                         Help.write(m, socketChannel);
                    } catch (IOException e) {
                         e.printStackTrace();
          t.start();
     public Client() {
          addWindowListener(new WindowAdapter() {
               public void windowClosing(WindowEvent e) {
                    System.exit(1);
          textFieed.addKeyListener(new KeyAdapter() {
               public void keyPressed(KeyEvent e) {
                    if (e.getKeyCode()== KeyEvent.VK_ENTER) {
                         String m = textFieed.getText();
                         sendMessage(m);
          area.setEditable(false);
          getContentPane().add(textFieed, "North");
          getContentPane().add(new JScrollPane(area));
          setBounds(200, 200, 400, 300);
          show();
     private String messageToSend;
     private JTextArea area = new JTextArea();
     JTextField textFieed = new JTextField();
     public static void main(String[] args) {
          Client s = new Client();
          s.work();

Applescript: file.open("r") returns empty in jsx

Hey guys,
i am having a bit of a scripting problem here. The big goal for me at the moment is creating a UI script to control aerender.
To achieve getting feedback from the terminal about when an aerender process is completed, i let the terminal trigger an applescript running a jsx inside after effects (since the terminal can't run a jsx inside after effects itself).
However, this particular script needs to eval the contents of a text file that is outputted during the render process (its just a log file put into a fixed location). No matter what i do: I can't get a proper response from the script. Here is what should happen when a render is done:
function RenderEnd () {
var report = new File ("Macintosh HD/Users/macname/generallog.txt");
report.open("r");
var reportstring = report.read();
report.close();
var reportendindex = reportstring.indexOf("Total Time Elapsed:");
var reportcloseindex = reportstring.indexOf("aerender version");
var reportendstring = reportstring.substring(reportendindex, [reportcloseindex]);
var regex = /Finished composition/gi, result, indices = [];
while ( (result = regex.exec(reportstring)) ) {
indices.push(result.index);
var ItemStringArray = new Array ();
for(var i=0; i<indices.length; i++){
ItemStringArray.push("Finished Item " + (i+1) + ": " + reportstring.substring(indices[i]-32, [indices[i]-2]));
var AlertString = "Rendering done." + "\r" + reportendstring + "\r" + ItemStringArray.toString().replace(",","\r");
alert(AlertString);
RenderEnd ();
Running this script by itself properly returns an alert containing a message "Rendering done." plus additional info about the render time and item completion.
But whenever i have the following applescript triggering the above jsx script...
set scriptfile to (POSIX file ("/Applications/Adobe After Effects CS5.5/Scripts/AERenderEndTrigger.jsx"))
tell application "Adobe After Effects CS5.5"
DoScriptFile scriptfile
end tell
...the line report.open("r") just returns empty.
Same goes when i place the jsx in the startup folder and just call the function RenderEnd () via applescript. It's as if the file open/read stuff does not work when using applescript.
Does anybody have an idea about this or knows the reason for why this obviously wrong behaviour happens? Maybe someone knows a different approach of how to get feedback from a completed aerender process back into a UI script.

Ok, i finally found the issue:
Applescript apparently does not recognize file paths beginning with a drive designation:
When i change the file path part of the report file from
var report = new File ("Macintosh HD/Users/macname/generallog.txt");
to simply
var report = new File ("/Users/macname/generallog.txt");
everything works as it should.
It's still a bit weird and i don't understand this. Maybe someone can explain this to me, please?

How to map AM method return values in the bean

Hello -
I have this requirement to map AM method return values in the bean as explained below. Please suggest a solution.
Scenario: I am calling an AM method, which returns a String object on page load.
AMImpl Method-
public String getProfileName (){
return "Profile";
I wish to catch this retun value in the Bean Variable on page Load. I have created a methodAction biding on page and invokeAction to call this method on Page Load, but I don't know how to catch this value in the bean. Please suggest how to achieve this. Also, I need to achieve this in jsp page. I can't use TaskFlow for this.
I am using ADF 11g.
Regards -
Rohit
Edited by: Rohit Makkad on Apr 21, 2010 12:23 AM

Hi, I think there are two ways, from the data control drag n drop the methods return value to the page. This way a binding for that will be created at the page definition eg retVal.
and in the backing bean you can access it by calling resolveExpression("#{bindings.retVal.inputValue}")
You can also call your method directly from the backbean
((YourAppModuleImpl) getBindings().getDataControl().getApplicationModule()).yourMethod();
public DCBindingContainer getBindings() {
return (DCBindingContainer) resolveExpression("#{bindings}");
I dont know if the second method suits you
Tilemahos

The class of the deferred-methods return type "{0}" can not be found.

I am developing a multilingual portal application.
I have the method that changes the locale based on user's choice in the bean and the method is being referred to as below.
<af:selectOneChoice label="Select Language" autoSubmit="true"
value="#{localeBean.locale}"
valueChangeListener="localeBean.changeLocale">
<af:selectItem label="English" value="en" id="si1"/>
<af:selectItem label="French" value="fr" id="si2"/>
<af:selectItem label="Dutch" value="nl" id="si3"/>
</af:selectOneChoice>
when i try to run the application, i am getting compile time errors as below,
The class of the deferred-methods return type "{0}" can not be found.
No property editor found for the bean "javax.el.MethodExpression".
After going through the discussion forums i learned that the compilation errors can be resolved by setting the <jsp:directive.page deferredSyntaxAllowedAsLiteral="false> at the starting of the page.
Even after that i am getting the compilation error.
Any solutions, suggestions or possible approaches would be helpful as i am new to Webcenter Portal development.
Thanks,

The error you get points to a problem on the page (somewhere). Switch to source mode and check the right margin if you see orange or red marks. These are pointing to problems (not all are show stoppers, but they give you hints that something is not according to the standard for jsf, jsff, jsp or jspx pages.
Have you checked that the bean is correctly defined and that it's reachable?
Start a fresh page and isolate the problem, e.g. build a selectOneChoiuce on the new page (don't copy it as you might copy the error too) and make it work on the new page. Once you have it running you can compare the solution to your not running page.
Timo

Can a method return a class ?

hi,
i have a simple question.
can a method return class value ?
in the below script i did'nt understand the commented line.
package com.google.gwt.sample.stockwatcher.client;
import com.google.gwt.user.client.rpc.RemoteService;
import com.google.gwt.user.client.rpc.RemoteServiceRelativePath;
@RemoteServiceRelativePath("login")
public interface LoginService extends RemoteService {
public LoginInfo login(String requestUri); //What is this ? is this a sample of what i asked ?
}

The answer to your question is yes.
The idea is that an object calls a function of another object (passing in objects to the function as arguments) in which that object returns an object (note the arguments or returned value of the function may alternately be primitive types). Each object typically encapsulates data and provides a rich set of functions to the calling object so that calling object doesn't have to deal with the raw data directly. Therefore, not only does the calling object get the data it wants, but also a rich set of functions that can manipulate that data.
Example:
Book book = new Book();
int characterCount = book.getChapter(3).getParagraph(4).getSentence(12).getWord(8).getCharacterCount();
In the above, each object (Book, Chapter,Paragraph,Sentence,Word) has a rich set of functions it provides to its caller.
Example: the Sentence Object has a collection of word objects (raw data). Functions it provides to Paragraph object are:
Word getWord(int index), Words getWords(), int getWordCount().
If you haven't already done so, I suggest reading a book on Java from cover to cover to pick up such Object Oriented concepts.

Custom Login Module - Commit Method return TRUE always?

Hi,
I am creating a custom login module for my portal authentication.
For the login module, should the commit() method always return TRUE?
The example code on help.sap.com indicates yes to this question.
However, the JAVA Sun standard indicates that commit should return FALSE if the preceding login method returned FALSE.
Does the SAP example stray from the SUN standard? How should I code the commit() method such that it works (Always TRUE, or follow lead of login() method)?
Regards,
Kevin

Hi Kevin,
I'm actually working with this document: <a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/events/webinars/jaas%20login%20module%20development%20on%20webas%20java%20640.pdf#search=%22classloader%20sda%20jar%20reference%22">JAAS Login Modules</a>.
There is also example code. If it should be ignored they return false, otherwise true (page 32).
Regards,
Marcus
Message was edited by: Marcus Freiheit

WINE err:"wine cmd.exe /c echo '%ProgramFiles%' returned empty string"

So as the tittle states WINE is throiwng this error:
wine cmd.exe /c echo '%ProgramFiles%' returned empty string
As for what might have caused it? probably the last system update which was performed a few days ago, my old prefix works fine but I have a habit of creating new prefixes for troublesome applications, or applications I am unsure of whether they will cause trouble or not.
Hence I created a new prefix using:
export WINEARCH=win32
export WINEPREFIX=~/.problematic
winecfg
As for how wine is run, it's run as a normal, unprivileged, user.
Oh and I also tried generating yet another prefix like this:
$ WINEARCH=win32 WINEPREFIX=~/.problematic-new winetricks steam
Executing w_do_call steam
wine cmd.exe /c echo '%ProgramFiles%' returned empty string
Didn't work either.
I'm at loss, any suggestion on how to fix it?
Last edited by CubeGod (2014-06-29 15:48:05)

$ WINEARCH=win32 WINEPREFIX=~/testprefix notepad.exe
bash: notepad.exe: command not found
So obviously I need to correct the command
$ WINEARCH=win32 WINEPREFIX=~/testprefix wine notepad.exe
wine: created the configuration directory '/home/shiina/testprefix'
err:module:load_builtin_dll failed to load .so lib for builtin L"winemp3.acm": libmpg123.so.0: cannot open shared object file: No such file or directory
fixme:ntdll:NtLockFile I/O completion on lock not implemented yet
err:mscoree:LoadLibraryShim error reading registry key for installroot
err:mscoree:LoadLibraryShim error reading registry key for installroot
err:mscoree:LoadLibraryShim error reading registry key for installroot
err:mscoree:LoadLibraryShim error reading registry key for installroot
fixme:ntdll:NtLockFile I/O completion on lock not implemented yet
fixme:iphlpapi:NotifyAddrChange (Handle 0xece880, overlapped 0xece88c): stub
wine: configuration in '/home/shiina/testprefix' has been updated.
Wine cannot find the ncurses library (libncursesw.so.5).
why is ncurses a dependency anyway? besides, wicd-curses works so this shouldn't be the case.
Anyway, trying winetricks in the same prefix
$ WINEARCH=win32 WINEPREFIX=~/testprefix winetricks steam
Executing w_do_call steam
wine cmd.exe /c echo '%ProgramFiles%' returned empty string
Anyway, I expected notepad to work since it resides in %WINDOWS% not %ProgramFiles%
Is there any registry key I can set for this? all my google searching says this can cause with a mismatch of wine versions but why would that happen?
Either way checking wine --version outputs wine-1.7.20 which is the same as it was pre-update (when it still worked).

Getserver cookie - returns empty page

Hi,
I am using MVC,
I have firstpage - a controller for that and a model class.
I have second page - a controller for that and the model is the same as the first one.
I am using a single model class but multiple controllers and multiple views. I am trying to use server cookies to set and get attributes between the pages.
First Page - I have 2 attributes - on Do_init - I instantiate Model. Do_request - loads the firstpage. Do_handle-data - once the data is entered in firstpage, gets it from form fields and loads it into cookie.
Do_handle_event - gets the values from the cookie and processes it and makes a table to be passed to the seconf page. I loaded this table in the cookie and - call second.do
Second page - in controller - DOInit - i have again instantiated Model - in Dorequest - I try to read from the cookie for the table data...But I am getting an empty page. I debugged it and in the Do request - where I call the get_server_cookie - nothing happens, just returns empty page...
Does anyone know why?? can I not access the cookie by name in more than once controllers??
Is this a right way of navigating between pages?? I want all the objects in the pages accessible across all the pages...should be able to read and write as per events...please suggest...
Thanks
Thilothama

Hi,
Put that cookie in the navigation->set_parameter and paas it to the next page in the page attributes as an 'AUTO'.
Hope this may help you.
Jyoti

Abstract class method returning unknown class

Hi
I have created an abstract class having one of the method returning an object of a class which is not present at the compiletime. surprisingly the compiler didn't check the availability of the returning class at compilation time. it gave exception of classnotfound when I tried to rum it.
is there any explanation of it??

Thanks for the replay. I got the reason.
actually evenif I did not compile to class file, but I have kept my java file in the same directory. while compiling the abstract class the compiler automatically compiled the reffered class and generated the required class file.
I got the error when I moved the java file to another dir
the code is like
<code>
abstract class AbstractTest{
     CompleteClass method1(){
          System.out.println("inside method1 of abstract class");
          return new CompleteClass();
     ExtraClass method2(){
               System.out.println("inside method2 of abstract class");
               return new ExtraClass(); // this class was not compiled before
     } // only java file is there in the dir
     abstract void demoMethod();
</code>

On CMC Home Authentication page returns empty

On CMC Home > Authentication page returns empty and after some time returns the following error:
The maximum amount of time for a script to execute was exceeded. You can change this limit by specifying a new value for the property Server.ScriptTimeout.
line: 1373

Thanks Sebastian. I did not find anything related to Server.ScriptTimeout.
Just wanted to add that the 'Windows AD' tab is getting this error. Additionally, when I go to Home > All Users and select on any User, I get the following error:
Retrieve Error
There was an error while retrieving data from the server: Active Directory Authentication failed to get the Active Directory groups for the account with ID "....". Please make sure this account is valid and belongs to an accessible domain.

LicenseServer property in Company object alway return empty string

Hi everyone,
When I use Company object and LicenseServer property to get LicenseServer, both in SBO 2004 & SBO 2005 all return empty string, who can help me get the correct LicenseServer name.
Thanks in advance.
Kathy

Jose Xabier,
Thanks for your reply, actually I need the License server name, but in SLIC table it saves Local hotost and port number some times like below:
[localhost:30000]
who knows how to get the name instead of Localhost,
why licenseserver return empty sting? doI need set other property to get license server name for company object?
Thanks,
Kathy

Can a method return multiple items

Can a method return more than one thing?
I want to have a method return a boolean and a String. My method is saying if something is right or wrong, then its saying the reason why.
help, please.
Thanx

Afternoon_Delight wrote:
My question is:
Is there a way so that it can be more like this:
public boolean, String checkValidity (){
To expand on the previous posts, one way (not saying it's the best one!) is to create an object that combines the information that you want returned:
public class MyValid
private boolean valid;
private String text;
public MyValid(boolean valid, String text)
    this.valid = valid;
    this.text = text;
public boolean isValid()
    return valid;
public String getText()
    return text;
class DoFoo
public MyValid checkValidity()
    return new MyValid(false, "Because I said so!");
}

OracleDataSourceEnumerator GetDataSources method returns empty

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