catalogwebimpl.java

来自「一个优秀的供应商管理系统」· Java 代码 · 共 70 行

package apusic.myshop.catalog.web;


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

import apusic.myshop.catalog.ejb.CatalogHome;
import apusic.myshop.catalog.ejb.Catalog;
import apusic.myshop.util.EJBUtil;
import apusic.myshop.util.Debug;

public class CatalogWebImpl {

  public CatalogWebImpl() { }

  public Catalog getCatalog(String cataId) {
    try{
      CatalogHome catalogHome = EJBUtil.getCatalogHome();
      Catalog catalog = catalogHome.findByCataId(cataId);
      return catalog;
    } catch (RemoteException re) {
      Debug.println("CatalogBean: Unable to locate category for item " + cataId);
    } catch (FinderException fe) {
      Debug.println("CatalogBean: Unable to locate category for item " + cataId);
    }
    return null;
  }

  public Collection getCatalogs(String category) {
    try{
      CatalogHome catalogHome = EJBUtil.getCatalogHome();
      Collection catalogs = catalogHome.findByCategory(category);
      return catalogs;
    } catch (RemoteException re) {
      Debug.println("CatalogBean: Unable to locate catalog for items " );
    } catch (FinderException fe) {
      Debug.println("CatalogBean: Unable to locate catalog for items " );
    }
    return null;
  }

  public Collection getCatalogs() {
    try{
      CatalogHome catalogHome = EJBUtil.getCatalogHome();
      Collection catalogs = catalogHome.findCatalogs();
      return catalogs;
    } catch (RemoteException re) {
      Debug.println("CatalogBean: Unable to locate catalog for items " );
    } catch (FinderException fe) {
      Debug.println("CatalogBean: Unable to locate catalog for items " );
    }
    return null;
  }

  public void createCatalog(String cataId, String category,
    String name, String descn) {

    try{
      CatalogHome catalogHome = EJBUtil.getCatalogHome();
      catalogHome.create(cataId, category, name, descn);
    } catch (RemoteException re) {
      Debug.println("CatalogBean: Unable to locate catalog for items " );
    } catch (CreateException fe) {
      Debug.println("CatalogBean: Unable to Create catalog " );
    }
  }

}