Thx you so much for replying . I feel less alone ...

Wolf-Dieter Fink a écrit:

Thx u so much for your interest

As you use the remote-naming project (remote:// URL) you might run into several issues.

 

What do you mean ? sorry but... what are the other possibility to set a connection ?

What might happen is that the GC remove the InitialContext from the heap, in this case the connection is closed and the context destroyed.

So what can i do to prevent this behavior ? and what is GC ?

You need to keep the IC as long as you use the proxy, if you finish the work you should call IC.close().

I never call close... and i know it is also a mistake. When a use the "new Context" solution before each ejb call, after sometime, jboss reject connection due to too  much connection (i guess).

Thx you again.

I will take a look into that.

the recommend one is the first.

The problem is, when i build my small test program (with main etc etc), like your pointed doc (https://docs.jboss.org/author/display/AS72/EJB+invocations+from+a+remote+client+using+JNDI) my code run perfectly.

But when i call my ejb from controller (i use a singleton to retreive all ejb at the start of my web app) i get : No EJB receiver available for handling ...

I will take a look to thes exemples.

Thx again for your time !

Charles.

public class BusinessEjbApi {

    private final String JBOSS_CONTEXT = "org.jboss.naming.remote.client.InitialContextFactory";

    private Properties jndiProperties;

    private Context context;

    private ReportManager reportManager;

    private ProcessManager processManager;

    private CoqueDAO coquedao;

    private OperateurDAO operateurdao;

    private ChariotUtilManager chariotUtilManager;

    private boolean CoqueDaoEjbretrieveOk;

    private boolean OperateurDaoEjbretrieveOk;

    private boolean reportManagerRetrieveOk;

    private boolean processManagerRetrieveOk;

    private boolean chariotManagerEjbretrieveOk;

    public BusinessEjbApi() throws NamingException {

        String JBOSS_CONTEXT = "org.jboss.naming.remote.client.InitialContextFactory";

        jndiProperties = new Properties();

        jndiProperties.put(Context.INITIAL_CONTEXT_FACTORY, JBOSS_CONTEXT);

        jndiProperties.put(Context.PROVIDER_URL, "remote://127.0.0.1:4447");

        jndiProperties.put(Context.SECURITY_PRINCIPAL, "testuser");

        jndiProperties.put(Context.SECURITY_CREDENTIALS, "testpass");

        jndiProperties.put("jboss.naming.client.ejb.context", true);

        jndiProperties.put(Context.URL_PKG_PREFIXES, "org.jboss.ejb.client.naming");

        this.context = new InitialContext(jndiProperties);

        tryToRetrieveChariotManagerEjb();

        tryToRetrieveCoqueDaoEjb();

        tryToRetrieveOperateurDaoEjb();

        tryToRetrieveProcessManagerEjb();

        tryToRetrieveReportManagerEjb();

    }

    public void tryToRetrieveCoqueDaoEjb() {

        CoqueDaoEjbretrieveOk = true;

        try {

            coquedao = (CoqueDAO) context.lookup("dao-business-services-1.0-SNAPSHOT/CoqueDAOJpaImpl!fr.syneo.traitementdechet.dao.coque.CoqueDAO");

        } catch (NamingException e) {

            e.printStackTrace();

            CoqueDaoEjbretrieveOk = false;

        }

    }

    public void tryToRetrieveChariotManagerEjb() {

        chariotManagerEjbretrieveOk = true;

        try {

            chariotUtilManager = (ChariotUtilManager) context.lookup("dao-business-services-1.0-SNAPSHOT/ChariotUtilManagerImpl!fr.syneo.traitementdechet.manager.chariotutil.ChariotUtilManager");

        } catch (NamingException e) {

            chariotManagerEjbretrieveOk = false;

            e.printStackTrace();

        }

    }

    public void tryToRetrieveOperateurDaoEjb() {

        OperateurDaoEjbretrieveOk = true;

        try {

            operateurdao = (OperateurDAO) context.lookup("dao-business-services-1.0-SNAPSHOT/OperateurDaoJpaImpl!fr.syneo.traitementdechet.dao.operateur.OperateurDAO");

        } catch (NamingException e) {

            e.printStackTrace();

            OperateurDaoEjbretrieveOk = false;

        }

    }

    public void tryToRetrieveReportManagerEjb() {

        reportManagerRetrieveOk = true;

        try {

            reportManager = (ReportManager) context.lookup("dao-business-services-1.0-SNAPSHOT/ReportManagerImpl!fr.syneo.traitementdechet.manager.report.ReportManager");

        } catch (NamingException e) {

            e.printStackTrace();

            reportManagerRetrieveOk = false;

        }

    }

    public void tryToRetrieveProcessManagerEjb() {

        processManagerRetrieveOk = true;

        try {

            processManager = (ProcessManager) context.lookup("dao-business-services-1.0-SNAPSHOT/ProcessManagerImpl!fr.syneo.traitementdechet.manager.process.ProcessManager");

        } catch (NamingException e) {

            e.printStackTrace();

            processManagerRetrieveOk = false;

        }

    }

    public boolean isCoqueDaoEjbretrieveOk() {

        return CoqueDaoEjbretrieveOk;

    }

    public boolean isOperateurDaoEjbretrieveOk() {

        return OperateurDaoEjbretrieveOk;

    }

    public boolean isReportManagerRetrieveOk() {

        return reportManagerRetrieveOk;

    }

    public boolean isProcessManagerRetrieveOk() {

        return processManagerRetrieveOk;

    }

    public boolean isChariotManagerEjbretrieveOk() {

        return chariotManagerEjbretrieveOk;

    }

    public OperateurDAO getOperateurdao() {

        return operateurdao;

    }

    public ReportManager getReportManager() {

        return reportManager;

    }

    public CoqueDAO getCoquedao() {

        return coquedao;

    }

    public ProcessManager getProcessManager() {

        return processManager;

    }

    public ChariotUtilManager getChariotUtilManager() {

        return chariotUtilManager;

    }

}

___________________________________________

I use that singleton inside my spring controller.... and it fails. hard.

Thx you Wolf,

I got a question: What is the proper pattern to use the ejb so...

If i understand the exemple pointed here

I have to generrate context,

retreive the required ejb,

use the ejb,

and close the context.

But, when the "logic" is outside the SimpleJBossApiClient,

the proper way to close the context is the provide a public methode to close() ?

like:

mySpringController {

fonction1() {

//logic

SimpleJbossApiClient api = new .......

myejb = api.invokeMyEjb();

logic here

api.closeContext();

// mandatory ? i dont get the finally block, it will detroy the context anyway... so...

// is that the proper way to use the exemple "pattern" ?

}

}