ejbgetter.java

java指南

/*
 * Copyright (c) 2004 Sun Microsystems, Inc.  All rights reserved.  U.S.
 * Government Rights - Commercial software.  Government users are subject
 * to the Sun Microsystems, Inc. standard license agreement and
 * applicable provisions of the FAR and its supplements.  Use is subject
 * to license terms.
 *
 * This distribution may include materials developed by third parties.
 * Sun, Sun Microsystems, the Sun logo, Java and J2EE are trademarks
 * or registered trademarks of Sun Microsystems, Inc. in the U.S. and
 * other countries.
 *
 * Copyright (c) 2004 Sun Microsystems, Inc. Tous droits reserves.
 *
 * Droits du gouvernement americain, utilisateurs gouvernementaux - logiciel
 * commercial. Les utilisateurs gouvernementaux sont soumis au contrat de
 * licence standard de Sun Microsystems, Inc., ainsi qu'aux dispositions
 * en vigueur de la FAR (Federal Acquisition Regulations) et des
 * supplements a celles-ci.  Distribue par des licences qui en
 * restreignent l'utilisation.
 *
 * Cette distribution peut comprendre des composants developpes par des
 * tierces parties. Sun, Sun Microsystems, le logo Sun, Java et J2EE
 * sont des marques de fabrique ou des marques deposees de Sun
 * Microsystems, Inc. aux Etats-Unis et dans d'autres pays.
 */


package com.sun.ebank.util;

import javax.rmi.PortableRemoteObject;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import com.sun.ebank.ejb.account.LocalAccountHome;
import com.sun.ebank.ejb.account.AccountControllerHome;
import com.sun.ebank.ejb.customer.LocalCustomerHome;
import com.sun.ebank.ejb.customer.CustomerControllerHome;
import com.sun.ebank.ejb.tx.LocalTxHome;
import com.sun.ebank.ejb.tx.TxControllerHome;
import com.sun.ebank.ejb.exception.*;
import com.sun.ebank.ejb.util.LocalNextId;
import com.sun.ebank.ejb.util.LocalNextIdHome;


/**
 * This helper class fetches EJB home references.
 */
public final class EJBGetter {
    public static AccountControllerHome getAccountControllerHome()
        throws NamingException {
        InitialContext initial = new InitialContext();
        Object objref = initial.lookup(CodedNames.ACCOUNT_CONTROLLER_EJBHOME);

        return (AccountControllerHome) PortableRemoteObject.narrow(objref,
            AccountControllerHome.class);
    }

    public static LocalAccountHome getAccountHome() throws NamingException {
        InitialContext initial = new InitialContext();
        Object objref = initial.lookup(CodedNames.ACCOUNT_EJBHOME);

        return (LocalAccountHome) PortableRemoteObject.narrow(objref,
            LocalAccountHome.class);
    }

    public static CustomerControllerHome getCustomerControllerHome()
        throws NamingException {
        InitialContext initial = new InitialContext();
        Object objref = initial.lookup(CodedNames.CUSTOMER_CONTROLLER_EJBHOME);

        return (CustomerControllerHome) PortableRemoteObject.narrow(objref,
            CustomerControllerHome.class);
    }

    public static LocalCustomerHome getCustomerHome() throws NamingException {
        InitialContext initial = new InitialContext();
        Object objref = initial.lookup(CodedNames.CUSTOMER_EJBHOME);

        return (LocalCustomerHome) PortableRemoteObject.narrow(objref,
            LocalCustomerHome.class);
    }

    public static TxControllerHome getTxControllerHome()
        throws NamingException {
        InitialContext initial = new InitialContext();
        Object objref = initial.lookup(CodedNames.TX_CONTROLLER_EJBHOME);

        return (TxControllerHome) PortableRemoteObject.narrow(objref,
            TxControllerHome.class);
    }

    public static LocalTxHome getTxHome() throws NamingException {
        InitialContext initial = new InitialContext();
        Object objref = initial.lookup(CodedNames.TX_EJBHOME);

        return (LocalTxHome) PortableRemoteObject.narrow(objref,
            LocalTxHome.class);
    }

    public static LocalNextIdHome getNextIdHome() throws NamingException {
        InitialContext initial = new InitialContext();
        Object objref = initial.lookup(CodedNames.NEXT_ID_EJBHOME);

        return (LocalNextIdHome) PortableRemoteObject.narrow(objref,
            LocalNextIdHome.class);
    }
}
 // EJBGetter