categorywebimpl.java

来自「一个优秀的供应商管理系统」· Java 代码 · 共 55 行

package apusic.myshop.category.web;


import java.rmi.RemoteException;
import javax.ejb.FinderException;
import javax.ejb.CreateException;
import java.util.Collection;

import apusic.myshop.category.ejb.CategoryHome;
import apusic.myshop.category.ejb.Category;
import apusic.myshop.util.EJBUtil;
import apusic.myshop.util.Debug;

public class CategoryWebImpl {

  public CategoryWebImpl() { }

  public Category getCategory(String catId) {
    try{
      CategoryHome categoryHome = EJBUtil.getCategoryHome();
      Category category = categoryHome.findByCatId(catId);
      return category;
    } catch (RemoteException re) {
      Debug.println("CategoryBean: Unable to locate category for item " + catId);
    } catch (FinderException fe) {
      Debug.println("CategoryBean: Unable to locate category for item " + catId);
    }
    return null;
  }

  public Collection getCategories() {
    try{
      CategoryHome categoryHome = EJBUtil.getCategoryHome();
      Collection categories = categoryHome.findCategories();
      return categories;
    } catch (RemoteException re) {
      Debug.println("CategoryBean: Unable to locate category for items " );
    } catch (FinderException fe) {
      Debug.println("CategoryBean: Unable to locate category for items " );
    }
    return null;
  }

  public void createCategory(String catId, String name, String descn) {
    try{
      CategoryHome categoryHome = EJBUtil.getCategoryHome();
      categoryHome.create(catId, name, descn);
    } catch (RemoteException re) {
      Debug.println("CategoryBean: Unable to locate category for items " );
    } catch (CreateException fe) {
      Debug.println("CategoryBean: Unable to create category" );
    }
  }

}