ejbgetter.java

j2ee API 开发重要工具 免费下载 欢迎使用

/*
 * Copyright (c) 2003 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) 2003 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.AccountHome;
import com.sun.ebank.ejb.account.AccountControllerHome;
import com.sun.ebank.ejb.customer.CustomerHome;
import com.sun.ebank.ejb.customer.CustomerControllerHome;
import com.sun.ebank.ejb.tx.TxHome;
import com.sun.ebank.ejb.tx.TxControllerHome;
import com.sun.ebank.ejb.exception.*;

/**
 * This helper class fetches EJB home references.
 */

public final class EJBGetter {

    public static AccountHome getAccountHome() throws NamingException {

        InitialContext initial = new InitialContext();
        Object objref = initial.lookup(CodedNames.ACCOUNT_EJBHOME);
        return (AccountHome)
            PortableRemoteObject.narrow(objref, AccountHome.class);
    } 

    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 CustomerHome getCustomerHome() throws NamingException {

        InitialContext initial = new InitialContext();
        Object objref = initial.lookup(CodedNames.CUSTOMER_EJBHOME);
        return (CustomerHome)
            PortableRemoteObject.narrow(objref, CustomerHome.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 TxHome getTxHome() throws NamingException {

        InitialContext initial = new InitialContext();
        Object objref = initial.lookup(CodedNames.TX_EJBHOME);
        return (TxHome)
            PortableRemoteObject.narrow(objref, TxHome.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);
    }

} // EJBGetter