Using JNDI to retrieve a far objects

hi every body,
my question is how using JNDI in order to retrieve far "java objects" (in another machine in the same network)
thanks,

I can't see where can i find help !!!
which provider url can i use (or which protocol to use) : RMI, Ldap, file system... ?

Similar Messages

I've tried to convert the obkect into bytes and store it. But while retreiving it using JNDI, its giving me an object. That's not the object I need.

You must convert and store the object into Base64. On read of the attribute convert from Base64 back into binary.

Calling non ejb from ejb using jndi lookup

Is it possible to call a non ejb java object from an ejb using a jndi lookup?
For example, we have a java class where main registers itself with our application server (JBoss 3.0.1). We have a test client that can use jndi to look up the object, but we can't get an ejb inside the application server to use the object.
Are we trying to do the impossible? If my question is not clear, please let me know so I can try to clarify.
Thanks

JNDI uses factories to create objects.
It's possible that JBoss has a Bean Factory which you can use to create your instance.
Tomcat has a Bean factory in its JNDI implementation. I use it just as you have indicated.
The JBoss documenation may help?
Dave

Need help in retrieving attributes from LDAP using JNDI

I am trying to retrieve attributes from LDAP using JNDI, but I'm getting the following error when I try to run my Java program.
Exception in thread "main" java.lang.NoClassDefFoundError: javax/naming/NamingException
I have all the jar files in my classpath: j2ee.jar, fscontext.jar and providerutil.jar. The interesting thing is that it gets compiled just fine but gives an error at run-time.
Could anyone tell me why I'm getting this error? Thanks!
Here's my code:
import javax.naming.*;
import javax.naming.directory.*;
import java.util.*;
import java.io.*;
class Getattr {
public static void main(String[] args) {
// Identify service provider to use
Hashtable env = new Hashtable(11);
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
// user     info
String userName = "username";
String password = "password";
// LDAP server specific information
String host = "ldaphostname";
String port = "portnumber";
String basedn = "o=organization,c=country";
String userdn = "cn=" + userName + "," + basedn;
env.put(Context.PROVIDER_URL, "ldap://" + host + ":" + port + "/" + basedn);
env.put(Context.SECURITY_PRINCIPAL, userdn);
env.put(Context.SECURITY_CREDENTIALS, password);
try {
System.setErr(new PrintStream(new FileOutputStream(new File("data.txt"))));
// Create the initial directory context
DirContext ctx = new InitialDirContext(env);
// Ask for all attributes of the object
Attributes attrs = ctx.getAttributes("cn=" + userName);
NamingEnumeration ne = attrs.getAll();
while(ne.hasMore()){
Attribute attr = (Attribute) ne.next();
if(attr.size() > 1){
for(Enumeration e = attr.getAll(); e.hasMoreElements() ;) {
System.err.println(attr.getID() + ": " + e.nextElement());
} else {
     System.err.println(attr.getID() + ": " + attr.get());
// Close the context when we're done
ctx.close();
} catch(javax.naming.NamingException ne) {
     System.err.println("Naming Exception: " + ne);
} catch(IOException ioe) {
     System.err.println("IO Exception: " + ioe);

That doesn't work either. It seems its not finding the NamingException class in any of the jar files. I don't know why? Any clues?

Querying deleted objects container in Active Directory using JNDI

Hi,
I am trying to query deleted objects container using JNDI which fails with error 64.
Has anyone seen this or knows how to query AD using binary data in JNDI.
Seems to me there is some problem with the search base.
search base: <GUID=18E2EA80684F11D2B9AA00C04F79F805,dc=engserver,dc=com>.
filter: objectclass=*
search scope: subtree
This is the error:
Search example failed.
javax.naming.InvalidNameException: <GUID=18E2EA80684F11D2B9AA00C04F79F805,dc=eng
server,dc=com>: [LDAP: error code 64 - 00000057: LdapErr: DSID-0C090563, comment
: Error processing name, data 0, v893 ]; remaining name '<GUID=18E2EA80684F11D2B
9AA00C04F79F805,dc=engserver,dc=com>'
at com.sun.jndi.ldap.LdapCtx.processReturnCode(LdapCtx.java:2802)
at com.sun.jndi.ldap.LdapCtx.processReturnCode(LdapCtx.java:2616)
at com.sun.jndi.ldap.LdapCtx.searchAux(LdapCtx.java:1744)
at com.sun.jndi.ldap.LdapCtx.c_search(LdapCtx.java:1667)
at com.sun.jndi.toolkit.ctx.ComponentDirContext.p_search(ComponentDirCon
text.java:368)
at com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.search(PartialCom
positeDirContext.java:328)
at com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.search(PartialCom
positeDirContext.java:313)
at javax.naming.directory.InitialDirContext.search(InitialDirContext.jav
a:245)
at jSearch.main(jSearch.java, Compiled Code)
Thanks,
Chetan

I thought I had posted one of these. How remiss of me !/**
* deleted.java
* 5 July 2001
* Sample JNDI application to search for deleted objects
* Modified December 2004 to add Win2K3 lastKnownParent
import java.util.Hashtable;
import javax.naming.*;
import javax.naming.ldap.*;
import javax.naming.directory.*;
import com.sun.jndi.ldap.ctl.*;
class DeletedControl implements Control {
     public byte[] getEncodedValue() {
          return new byte[] {};
     public String getID() {
          return "1.2.840.113556.1.4.417";
     public boolean isCritical() {
          return true;
public class deleted     {
     public static void main (String[] args)     {
          Hashtable env = new Hashtable();
          String adminName = "CN=Administrator,CN=Users,DC=ANTIPODES,DC=COM";
          String adminPassword = "XXXXXX";
          String ldapURL = "ldap://mydc.antipodes.com:389";
          env.put(Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.ldap.LdapCtxFactory");
          //set security credentials, note using simple cleartext authentication
          env.put(Context.SECURITY_AUTHENTICATION,"simple");
          env.put(Context.SECURITY_PRINCIPAL,adminName);
          env.put(Context.SECURITY_CREDENTIALS,adminPassword);
          //connect to my domain controller
          env.put(Context.PROVIDER_URL,ldapURL);
          try {
               //Create the initial directory context
               LdapContext ctx = new InitialLdapContext(env,null);
               //Create the search controls
               SearchControls searchCtls = new SearchControls();
               //Specify the attributes to return
               String returnedAtts[]={"distinguishedName","lastKnownParent"};
               searchCtls.setReturningAttributes(returnedAtts);
               //Specify the search scope
               searchCtls.setSearchScope(SearchControls.SUBTREE_SCOPE);
               //specify the LDAP search filter
               String searchFilter = "(&(objectClass=user)(isDeleted=TRUE))";
               //Specify the Base for the search
               String searchBase = "DC=antipodes,DC=com";
               //initialize counter to total the results
               int totalResults = 0;
               //specify the Deleted control
               Control[] rqstCtls = new Control[] {new DeletedControl()};
               ctx.setRequestControls(rqstCtls);
               //Search for objects using the filter
               NamingEnumeration answer = ctx.search(searchBase, searchFilter, searchCtls);
               //Loop through the search results
               while (answer.hasMoreElements()) {
                    SearchResult sr = (SearchResult)answer.next();
                    totalResults++;
                    System.out.println(totalResults + ". " + sr.getName().toString());
                    // Print out some of the attributes, catch the exception if the attributes have no values
                    Attributes attrs = sr.getAttributes();
                    if (attrs != null) {
                         try {
                              for (NamingEnumeration ae = attrs.getAll();ae.hasMore();) {
                                   Attribute attr = (Attribute)ae.next();
                                   System.out.println("Attribute: " + attr.getID());
                                   for (NamingEnumeration e = attr.getAll();e.hasMore();System.out.println("   " + e.next().toString()));
                         catch (NullPointerException e)     {
                         System.err.println("Problem listing attributes: " + e);
               System.out.println("Deleted objects: " + totalResults);
               ctx.close();
          catch (NamingException e) {
          System.err.println("Problem searching directory: " + e);
}

How to use the opportunity stub classes to retrieve the opportunity objects

Hello ,
I have downloaded WSDL file for opportunity and i have created the stub classes by using axis as WSDL to java. Can any body suggest me , how can i use those created stub classes to retrieve the opportunity objects ?.
Thanks,
--bdr_09
Edited by: bdr on Feb 3, 2009 1:54 AM

http://java.sun.com/j2ee/tutorial/1_3-fcs/doc/Tools8.html#63055

What FM retrieve inner authorization object BBP_ROLE using the user's role

Hi Experts!
Do you know what Function Module can be use to retreive the inner authorization object BBP_ROLE using the user's role
e.g. BUYER : YT:PU:XXXX:BUYERROLE
Object       : BBP_ROLE      SRM: User function / Role
field name : BBP_ROLE      SRM: User function / Role
Activities
Sel      Activity      Text
x       EMP             Employee
x       OPP             Operational Purchaser
......etc
Thanks!

Hi
Execute Txn S_BCE_68001414 in debug mode, and figure out how system takes the inner authorizations through the flow of this program
Regards
Virender Singh

UserTransaction - Scope using JNDI lookup from jspInit() method

Howdy,
I'm using JSP's with JavaBeans accessing a DataSource and some other enviroment variables using JNDI lookups. I've read that JNDI lookups can take a fair amount of time and should be limited whenever possible. My previous configuration had the JNDI lookups inside the constructors of the JavaBeans but I've recently decided to move them to the jspInit() method of the calling JSP. This way the lookup only needs to be performed once and then I pass the values to the JavaBean in a method called setContextVariables. Two of the references to objects that i'm sending are the UserTransaction and DataSource objects. Within the Javabeans I have userTran.begin() and commit() statements. So far it's running great but i'm starting to wonder about the thread safety of this method. My question lies in the actual delagation of the UserTransaction object to the calling client method. It seems that i'm passing the same transaction to every Javabean (or am I?) Is the transaction actually issued when the begin() method is called, or at the time of the JNDI lookup? To test everything out, I opened two sessions and put a breakpoint inside one of the transactions. When I stopped at the breakpoint I ran another thread (also using a transaction retrieved from the same JSP). Then I went back and resumed the first thread and everything seemed to work ok. So... this seems completely fantabulastic so far (definitely noticable response time increases) but I'm still a little skeptical. If anyone is using a process similar to this I would appreciate some feedback. Thanks.

Hi,
The EJB bean will use the client transaction when the following attributes are specified in descriptor.
1) Required
2) Mandatory
3) Supports
In Required case, if the client is associated with Transaction, then the EJB bean will use the same transaction. This is achieved by Transaction context. The EJB bean will use the same transaction context set by client. if the client doesn't have any transaction, then the container will create new transaction context for EJB bean and completes the transaction.
In Mandatory case, the client must be associated with Transaction so that EJB bean will use the same transaction. If the client doesn't associate with transaction, then container will throw TransactionRequiredException for EJB bean.
In Supports case, it works similar to Required case except that if the client doesn't associate with transaction, then there won't be any transaction in EJB bean.
hope this helps.

Using JNDI to access config file located outsite j2ee app

Hi I'm wanting to store a config file for my J2ee app, somewhere on a tomcat server possibly inside the
conf/ directory so that I can update this config file without having to redeploy the j2ee app every time a change is made.
I've been told I can use JNDI to access this file, but I can't seem to find any examples or documentation on how I can do this.
I'm new to JNDI and would appreciate any help, or suggestions.
Thanks,
Tim
EDIT:
So far I can access the file with this code:
Hashtable env = new Hashtable();
          env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.fscontext.RefFSContextFactory");
          try {
               Context ctx = new InitialContext(prop);
               // look up context for name
               //env.put(Context.PROVIDER_URL, "file:C:\\confluence\\confluence-2.5.1-std\\conf");
               File f = (File)ctx.lookup("/confluence/confluence-2.5.1-std/conf/test.txt");My new problems are:
1. The commented line env.put(Context.PROVIDER_URL, "file:C:\\confluence\\confluence-2.5.1-std\\conf"); it says in examples that this should set the dir to look in to the conf dir but if i change the lookup value to just test.txt it cannot find it.
2. Can I somehow set the context to look into the conf directory of Tomcat without hard coding the path, as the path could change or be different on different machines??
Edited by: Timothyja on Jan 15, 2008 7:00 PM

Hi Kiran,
Looking at the code you sent and the error, it looks like you should be casting the ds object to a javax.sql.DataSource object not a weblogic.jdbc.common.internal.RmiDataSource object.
You may find some useful info at the following URL:
http://edocs.bea.com/wls/docs81/jdbc/rmidriver.html#1026007

Servlet with Issues writing to MySQL Database using JNDI

I'm hung on one servlet for my site. It compiles fine, and is accessed fine by the JSP, but doesn't do as I intended: write my blog entries to the MySQL database!
As mentioned in the title, I'm using JNDI for connection pooling, via META-INF/context.xml.
I'm also using JDBC Realm with a form, and that's working just fine, so I'm sure my issue isn't context.xml, as it seems to be overriding Tomcat's context file just fine, at least for authentication.
Below is the code from the servlet, to include the annotations:
package projectEgress.web.blog;
import java.io.*;
import java.text.*;
import java.sql.*;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.sql.*;
public final class blogInput {
     /* bean properties */
    private String blogHeader;
    private String blogSubheader;
    private String blogBody;
    private String externalLinks;
    Connection conn;
    Statement stmt;
        /* getters & setters */
        public String getBlogHeader() {
            return blogHeader;
        public void setBlogHeader(String blogHeader) {
            this.blogHeader = blogHeader;
        public String getBlogSubheader() {
            return blogSubheader;
        public void setBlogSubheader(String blogSubheader) {
            this.blogSubheader = blogSubheader;
        public String getBlogBody() {
            return blogBody;
        public void setBlogBody(String blogBody) {
            this.blogBody = blogBody;
        public String getExternalLinks() {
            return externalLinks;
        public void setExternalLinks(String externalLinks) {
            this.externalLinks = externalLinks;
        /* like it says, a void which writes to the database */
        public void writeToDatabase() {
            /* create the query string to fill the table */
            String query = "insert into blogEntry (blogHeader, blogSubheader, blogBody, externalLinks) values (\"" + this.blogHeader + "\", \"" + this.blogSubheader + "\", \"" + this.blogBody + "\", \"" + this.externalLinks + "\")";
            try {
                /*establish the datasource and make the connection */
                Context ctxt = new InitialContext();
                DataSource dsrc = (DataSource)ctxt.lookup("java:comp/env/jdbc/projectEgress");
                conn = dsrc.getConnection();
                stmt = conn.createStatement();
                /* Add data to table 'blogEntry' in our database */
                int input = stmt.executeUpdate(query);
                /* close the connections */
                stmt.close();
                conn.close();
                /* check for exceptions, ensure connections are closed */
                } catch (SQLException sqlx) {
                    sqlx.printStackTrace();
                } catch (Exception ex) {
                    ex.printStackTrace();
                } finally {
                    if (stmt != null) {
                        try {
                            stmt.close();
                    } catch (SQLException sqlx) {}
                    if (conn != null) {
                        try {
                            conn.close();
                    } catch (SQLException sqlx) {}
        Here are the settings I have in META-INF/context.xml (sans Realm stuff, which works):
<Context debug="1" reloadable="true">
    <Resource name="jdbc/projectEgress"
        auth="Container"
        type="javax.sql.DataSource"
        username="********"
        password="********"
        driverClassName="com.mysql.jdbc.Driver"
        url="jdbc:mysql://localhost:3306/projectEgress?autoReconnect=true"
        validationQuery="select 1"
        maxActive="15"
        maxIdle="8"
        removeAbandoned="true"
        removeAbandonedTimeout="120" />
    <WatchedResource>WEB-INF/web.xml</WatchedResource>
    <WatchedResource>META-INF/context.xml</WatchedResource>
</Context>And, finally, the code I'm using in the JSP which calls the method (the form action is directed to this file's URL):
    <jsp:useBean id="blogInput" class="projectEgress.web.blog.blogInput">
    <jsp:setProperty name="blogInput" property="*" />
        <jsp:scriptlet>blogInput.writeToDatabase();</jsp:scriptlet>
    </jsp:useBean>
    -YES, I know I'm using a scriptlet in a JSP... I really don't want to create a custom tag to call the method, at least not until I'm far along enough in the project to justify creating a library... let's make it all work, first! :o)
FINALLY, the form:
<form action="/projectEgress/area51/blogInput" method="post" id="adminForm" enctype="application/x-www-form-urlencoded">
     <div>
        <span class="inputheader">Blog Header</span><br />
      <input type="text" name="blogHeader" size="35" class="form" /><br />
        <span class="inputheader">Blog SubHeader</span><br />
      <input type="text" name="blogSubheader" size="45" class="form" /><br />
        <span class="inputheader">Blog Body</span><br />
      <textarea class="content" name="blogBody" rows="9" cols="60"></textarea><br />
        <span class="inputheader">External Links</span><br />
      <input type="text" name="externalLinks" size="45" class="form" /><br />
      <input type="submit" value="Post!" class="submit" />
     </div>
    </form>As far as I can tell, it should work, and it doesn't throw any errors (in fact it shows the success message rather than the configured error page), but when I check the blogEntry table from the MySQL prompt, it responds with "Empty set".
I've double checked to ensure that the table columns are present in MySQL and all the naming conventions line up and they do, so I figure it's my servlet that's broken.
Advice? Ideas?
Thanks in advance.
Edited by: -Antonio on Apr 25, 2008 8:03 PM with additional info

Okay, I changed a few things in the servlet code.
For one, I'm trying a PreparedStatement in place of Statement. Don't ask me what made me think it would work any better, it just stores the sql query in cache, but I thought I'd just try something else.
One thing this is allowing me to do is make the connection and statement (now PreparedStatement pStmt) objects local variables. It wouldn't allow me to do so before without giving me compile errors.
package projectEgress.web.blog;
import java.io.*;
import java.text.*;
import java.sql.*;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.sql.*;
public final class blogInput {
     /* bean properties */
    private String blogHeader;
    private String blogSubheader;
    private String blogBody;
    private String externalLinks;
        /* getters & setters */
        public String getBlogHeader() {
            return blogHeader;
        public void setBlogHeader(String blogHeader) {
            this.blogHeader = blogHeader;
        public String getBlogSubheader() {
            return blogSubheader;
        public void setBlogSubheader(String blogSubheader) {
            this.blogSubheader = blogSubheader;
        public String getBlogBody() {
            return blogBody;
        public void setBlogBody(String blogBody) {
            this.blogBody = blogBody;
        public String getExternalLinks() {
            return externalLinks;
        public void setExternalLinks(String externalLinks) {
            this.externalLinks = externalLinks;
        /* like it says, a void which writes to the database */
        public synchronized void writeToDatabase() {
            Connection conn = null;
            PreparedStatement pStmt = null;
            /* create the query string to fill the table */
            String Query = "INSERT INTO blogEntry (blogHeader, blogSubheader, blogBody, externalLinks) VALUES (\"" + this.blogHeader + "\", \"" + this.blogSubheader + "\", \"" + this.blogBody + "\", \"" + this.externalLinks + "\")";
            try {
                /*establish the datasource and make the connection */
                Context ctxt = new InitialContext();
                DataSource dsrc = (DataSource)ctxt.lookup("java:comp/env/jdbc/projectEgress");
                conn = dsrc.getConnection();
                pStmt = conn.prepareStatement(Query);
                /* Add data to table 'blogEntry' in our database */
                pStmt.executeUpdate();
                pStmt.clearParameters();
                /* close the connections */
                pStmt.close();
                conn.close();
                /* check for exceptions, ensure connections are closed */
                } catch (SQLException sqlx) {
                    sqlx.printStackTrace();
                } catch (Exception ex) {
                    ex.printStackTrace();
                } finally {
                    if (pStmt != null) {
                        try {
                            pStmt.close();
                    } catch (SQLException sqlx) {}
                    if (conn != null) {
                        try {
                            conn.close();
                    } catch (SQLException sqlx) {}
}Someone out there has to have a thought on this.
Even if it's just something they think probably won't work, so long as it gives me another angle to see this from.

How to use JNDI to lookup remote EJB Home?

Hello,
I am writing a servlet to call a remote EJB on another machine.
I use JNDI to lookup remote EJBHome (not) but fail.
Any advice?
Any trick to configure application-client.xml?
Thanks!

Use com.evermind.server.rmi.RMIInitialContextFactory instead
Here an example
// EmployeeClient.java
package mypackage5;
import javax.ejb.*;
import javax.naming.*;
import javax.rmi.PortableRemoteObject;
import java.io.*;
import java.util.*;
import java.rmi.RemoteException;
import com.evermind.server.ApplicationClientInitialContextFactory;
import com.evermind.server.rmi.RMIInitialContextFactory;
* A simple client for accessing an EJB.
public class EmployeeClient
public static void main(String[] args)
System.out.println("EmployeeClient.main(): client started...");
try
* initialize JNDI context by setting factory, url and credential
* in a hashtable
Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.evermind.server.rmi.RMIInitialContextFactory");
//env.put(Context.INITIAL_CONTEXT_FACTORY, "com.evermind.server.ApplicationClientInitialContextFactory");
env.put(Context.PROVIDER_URL, "ormi://koushikm:23791/application4");
env.put(Context.SECURITY_PRINCIPAL, "admin");
env.put(Context.SECURITY_CREDENTIALS, "admin");
* or set these properties in jndi.properties
* or use container defaults if that's where client got launched from
Context context = new InitialContext(env);
* Lookup the EmployeeHome object. The reference is retrieved from the
* application-local context (java:comp/env). The variable is
* specified in the assembly descriptor (META-INF/application-client.xml).
Object homeObject =
context.lookup("HelloEJB");
System.out.println("EmployeeClient.main(): bean found...");
// Narrow the reference to EmployeeHome.
HelloEJBHome home =
(HelloEJBHome) PortableRemoteObject.narrow(homeObject,
HelloEJBHome.class);
System.out.println("EmployeeClient.main(): home narrowed...");
// Create remote object and narrow the reference to Employee.
HelloEJB remote =
(HelloEJB) PortableRemoteObject.narrow(home.create(), HelloEJB.class);
System.out.println("EmployeeClient.main(): remote created...");
String message=remote.helloWorld("SUCCESS");
System.out.println(message);
} catch(NumberFormatException e) {
System.err.println("NumberFormatException: " + e.getMessage());
} catch(RemoteException e) {
System.err.println("RemoteException: " + e.getMessage());
} catch(IOException e) {
System.err.println("IOException: " + e.getMessage());
} catch(NamingException e) {
System.err.println("NamingException: " + e.getMessage());
} catch(CreateException e) {
System.err.println("CreateException: " + e.getMessage());
Hello,
I am writing a servlet to call a remote EJB on another machine.
I use JNDI to lookup remote EJBHome (not) but fail.
Any advice?
Any trick to configure application-client.xml?
Thanks!

How to use JNDI lookup

Hi ,
I am creating a POC for my project.Its using ATG and spring frameworks using RAD 6.first I have created ATG sample project in that same EAR file i created sample Spring project.Both are running in the same EAR.
I want to use spring classes from ATG components to use those methods.that is i should pass parameters to spring project methods and i should get the return value after executing those methods.
I heard that using JNDI look up I can get spring project class objects using that I can invoke spring project methods.
My requirement is two projects will be running in the same EAR.But one project will not be having information about other projects.both are independent from other.Using JNDI look up i need to invoke Spring project methods.
Please anyone help me how to do this.
I used java:comp/env/com/dao/EmpDAO to get instance of my class EmpDAO.But i am getting naming exception.Can anyone help me how to do this
Thanks in advance.

If Tomcat is your servlet/JSP engine, they have a nice bit about how to do it:
http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jndi-datasource-examples-howto.html
MOD

How to use jndi datasource on Weblogic instead of adding a DB data source

Hi All,
version: 11.1.1.4
I am trying to figure out how in my ADF applications I can use an existing jndi datasource out on our weblogic servers instead of having to bury the Database db source in my adf applications. Like SOA I would like to reference the DB directly during design so I can pull in entities and build view objects, but when I deploy I want it to reference the jndi datasource out on the weblogic server.
Is this possible? If so I am not sure how to configure it like I would a DB adapter in SOA.
As always appreciate the info.
Thanks,
S

If you use ADF in the model layer (application modules) you can configure them to use JNDI Datasources. Just right click on the application module and select 'Configurations...'. In the next dialog you see all the configurations currently available (one named xxxxxlocal and one named xxxxxshared at least). Select the local and hit the edit button. This open the DB connect dialog where you can change the connection from JDBC URL to JDBC Datasource (JNDI). Save your work and when you now start the app it will use the JNDI name.
Timo

Need help to access a web page using midlet to retrieve some informations

Hi everyone i'm trying to access a web page using midlet to retrieve some informations in text format, the web page is [http://daviddurand.info/D228/?villes|http://daviddurand.info/D228/?villes] for my project.
the problem is that i always get error 10049 in socket::open meaning no adresse could be found i tried IP adresse and still the same.
i managed to recreate the same web page to test it on local and the surprise that it works fine but when accessing it online i have this error.
i tried also to get the page i created on a webserver i own to try it saying that there might be security issues but the same error appears again. so help plz
here is my code :
package mobileapplication5;
import java.io.*;
import javax.microedition.io.*;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
public class GetMidlet extends MIDlet {
private Display display;
String url = "http://dayaati.com/villes/index.php?villes";
public GetMidlet() {
display = Display.getDisplay(this);
public void startApp() {
try {
getBirthdayFromNameUsingGet(url);
} catch (IOException e) {
System.out.println("IOException " + e);
e.printStackTrace();
public void pauseApp() {   }
public void destroyApp(boolean unconditional) { }
public void getBirthdayFromNameUsingGet(String url) throws IOException {
          HttpConnection httpConn = null;
          InputStream is = null;
          OutputStream os = null;
          try {
httpConn = (HttpConnection)Connector.open(url);
httpConn.setRequestProperty("User-Agent", "Profile/MIDP-2.1 Configuration/CLDC-1.1");
httpConn.setRequestProperty("Content-Language", "en-US" );
httpConn.setRequestProperty("Content-Type", "text/html; charset=iso-8859-1");
httpConn.setRequestProperty( "Connection", "keep-alive" );
httpConn.setRequestProperty("Content-Length","51200");
          getConnectionInformation(httpConn);
          int respCode = httpConn.getResponseCode();
          if (respCode == httpConn.HTTP_OK) {
               StringBuffer sb = new StringBuffer();
               os = httpConn.openOutputStream();
               is = httpConn.openDataInputStream();
               int chr;
               while ((chr = is.read()) != -1)
               sb.append((char) chr);
               // Web Server just returns the birthday in mm/dd/yy format.
               System.out.println(sb.toString());
          else {
               System.out.println("Error in opening HTTP Connection. Error#" + respCode);
          } finally {
               if(is!= null)
               is.close();
               if(os != null)
                    os.close();
          if(httpConn != null)
                    httpConn.close();
void getConnectionInformation(HttpConnection hc) {
System.out.println("Request Method for this connection is " + hc.getRequestMethod());
System.out.println("URL in this connection is " + hc.getURL());
System.out.println("Protocol for this connection is " + hc.getProtocol());
System.out.println("This object is connected to " + hc.getHost() + " host");
System.out.println("HTTP Port in use is " + hc.getPort());
System.out.println("Query parameter in this request are " + hc.getQuery());
**Heeeeeeelp Please**

[http://java.sun.com/javase/6/webnotes/trouble/TSG-VM/html/crashes.html]
SIGSEGV (0xb)Most common cause of that is JNI code used directly or indirectly through a 3rd party library.
64-Bit Server VM (11.2-b01 mixed mode linux-amd64)Conversely that VM gets less traffic than others so you might have hit a bug in it.

JNDI Context Retrieval in EJB 3.0

I have a doubt about JNDI context retrieval in EJB 3.0. I know that when I call a bean from another bean I can use this line:
InitialContext ctx=new InitialContext();
But I'd like to know whether in a Client I am obliged to pass this parameter:
InitialContext ctx=new InitialContext(System.getProperties());
This method was the one I called when I used EJB 2.1..Now in many examples I find both these approaches...I'd like to know what differentiates one from another and which is the standard in EJB 3.0?
I read that when calling a bean from another bean I can use the first constructor with no parameters...but in clients I am obliged to give the param..why?
Thanks!

Correct me if I am wrong: the application client
container is a "static" container: you need to know
which EJB to call at develop time and you can not
change it later without recompiling.That's not quite right. First, there's nothing special about the application client
container with respect to retrieving Java EE dependencies that is not also true
of Java EE web containers and EJB containers. The programming model for
defining and accessing EE dependencies is exactly the same, independent of
whether the code is running in an Application Client, EJB container, etc.
It's true that dependencies are defined at development time, but one of the
whole reasons for the level of indirection provided by Java EE dependencies
is to allow the target of those dependencies to change without changing code.
E.g, with EJB dependencies this is done using the ejb-link attribute in ejb-ref
or ejb-local-ref. That specifies which EJB is the target of the ejb dependency
without changing the code used to retrieve the dependency.
>
JNDI was designed to be more flexible: you can
dynamically lookup EJB homes, then call a remote
method you like at runtime. Is that flexibility lost
with application client container. Is there any way
to dynamically inquiry-invoke?In the Java EE programming model, components always define what their
dependencies are so that the deployer can configure them. The idea of
doing a direct global lookup without using a Java EE dependency is
outside the scope of Java EE. It works in many implementations but the
specifics are not portable.
We have a presentation that covers some of these topics you might find
interesting. See here :
https://glassfish.dev.java.net/javaee5/ejb/compdependencies_xmlforum_nov15.pdf

Using JNDI to retrieve a far objects

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