ejbutil.java

来自「一个优秀的供应商管理系统」· Java 代码 · 共 117 行

package apusic.myshop.util;



import java.rmi.RemoteException;
import javax.rmi.PortableRemoteObject;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.ejb.CreateException;

import apusic.myshop.control.GeneralFailureException;
import apusic.myshop.category.ejb.CategoryHome;
import apusic.myshop.catalog.ejb.CatalogHome;
import apusic.myshop.customer.ejb.CustomerHome;
import apusic.myshop.inventory.ejb.InventoryHome;
import apusic.myshop.product.ejb.ProductHome;
import apusic.myshop.supplier.ejb.SupplierHome;
import apusic.myshop.cart.ejb.CartHome;
import apusic.myshop.control.ejb.ShoppingClientControllerHome;
import apusic.myshop.order.ejb.OrderHome;


//通过JNDI来查找9个EJB的HOME接口，并返回HOME接口
public final class EJBUtil {

  public static ShoppingClientControllerHome getSCCHome() {
    try {
      InitialContext initial = new InitialContext();
      ShoppingClientControllerHome sccHome = (ShoppingClientControllerHome) initial.lookup(JNDINames.SCC_EJBHOME);
      return sccHome;
    } catch (NamingException ne) {
      throw new GeneralFailureException(ne);
    }
  }

  public static OrderHome getOrderHome() {
    try {
	    InitialContext initial = new InitialContext();
	    OrderHome orderHome = (OrderHome) initial.lookup(JNDINames.ORDER_EJBHOME);
	    return orderHome;
    } catch (NamingException ne) {
	    throw new GeneralFailureException(ne);
    }
  }

  public static CategoryHome getCategoryHome() {
    try {
	    InitialContext initial = new InitialContext();
	    CategoryHome categoryHome = (CategoryHome) initial.lookup(JNDINames.CATEGORY_EJBHOME);
	    return categoryHome;
    } catch (NamingException ne) {
	    throw new GeneralFailureException(ne);
    }
  }

  public static CatalogHome getCatalogHome() {
    try {
	    InitialContext initial = new InitialContext();
	    CatalogHome catalogHome = (CatalogHome) initial.lookup(JNDINames.CATALOG_EJBHOME);
	    return catalogHome;
    } catch (NamingException ne) {
	    throw new GeneralFailureException(ne);
    }
  }

  public static CustomerHome getCustomerHome() {
    try {
	    InitialContext initial = new InitialContext();
	    CustomerHome customerHome = (CustomerHome) initial.lookup(JNDINames.CUSTOMER_EJBHOME);
	    return customerHome;
    } catch (NamingException ne) {
	    throw new GeneralFailureException(ne);
    }
  }

  public static InventoryHome getInventoryHome() {
    try {
	    InitialContext initial = new InitialContext();
	    InventoryHome inventoryHome = (InventoryHome) initial.lookup(JNDINames.INVENTORY_EJBHOME);
	    return inventoryHome;
    } catch (NamingException ne) {
	    throw new GeneralFailureException(ne);
    }
  }

  public static ProductHome getProductHome() {
    try {
	    InitialContext initial = new InitialContext();
	    ProductHome productHome = (ProductHome) initial.lookup(JNDINames.PRODUCT_EJBHOME);
	    return productHome;
    } catch (NamingException ne) {
	    throw new GeneralFailureException(ne);
    }
  }

  public static SupplierHome getSupplierHome() {
    try {
	    InitialContext initial = new InitialContext();
	    SupplierHome supplierHome = (SupplierHome) initial.lookup(JNDINames.SUPPLIER_EJBHOME);
	    return supplierHome;
    } catch (NamingException ne) {
	    throw new GeneralFailureException(ne);
    }
  }

  public static CartHome getCartHome() {
    try {
	    InitialContext initial = new InitialContext();
	    CartHome cartHome = (CartHome) initial.lookup(JNDINames.CART_EJBHOME);
	    return cartHome;
    } catch (NamingException ne) {
      ne.printStackTrace();
	    throw new GeneralFailureException(ne);
    }
  }

}