category.java

Java EE 5 许多新功能都包含经过修补的 EJB 架构

/*
 * Copyright 2006 Borys Burnayev
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.rdacorp.petstore.domain;

import java.util.Collection;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.JoinTable;
import javax.persistence.ManyToMany;
import javax.persistence.Table;

/**
 * @author Borys Burnayev
 */
@Entity
@Table(name = "product_category")
public class Category {

   private Integer categoryId;

   private String code;

   private String name;

   private String description;

   private String briefDescription;

   private String imagePath;

   private Collection<Product> products;

   public Category(String code, String name, String description, String imagePath) {
      this.code = code;
      this.name = name;
      this.description = description;
      this.imagePath = imagePath;
   }

   public Category() {
   }

   @Id
   @Column(name = "product_category_sysid")
   public Integer getCategoryId() {
      return this.categoryId;
   }

   public void setCategoryId(Integer categoryId) {
      this.categoryId = categoryId;
   }

   @Column(name = "product_category_abbr")
   public String getCode() {
      return this.code;
   }

   public void setCode(String productCategoryAbbr) {
      this.code = productCategoryAbbr;
   }

   @Column(name = "product_category_nm")
   public String getName() {
      return this.name;
   }

   public void setName(String productCategoryNm) {
      this.name = productCategoryNm;
   }

   @Column(name = "product_category_desc")
   public String getDescription() {
      return this.description;
   }

   public void setDescription(String productCategoryDesc) {
      this.description = productCategoryDesc;
   }

   @Column(name = "brief_description")
   public String getBriefDescription() {
      return this.briefDescription;
   }

   public void setBriefDescription(String briefDescription) {
      this.briefDescription = briefDescription;
   }

   @Column(name = "image_path")
   public String getImagePath() {
      return this.imagePath;
   }

   public void setImagePath(String imagePath) {
      this.imagePath = imagePath;
   }

   @ManyToMany
   @JoinTable(name = "product_category_map", joinColumns = { @JoinColumn(name = "product_category_sysid") }, inverseJoinColumns = { @JoinColumn(name = "product_sysid") })
   public Collection<Product> getProducts() {
      return this.products;
   }

   public void setProducts(Collection<Product> products) {
      this.products = products;
   }

   public String toString() {
      String id = categoryId != null ? categoryId.toString() : "<no ID>";
      return "Category " + id + ":\nCode: " + code + "\nName: " + name + "\nDescription: " + description
               + "\nImage Path: " + imagePath + "\n";
   }

   public boolean equals(Object object) {
      if (!(object instanceof Category))
         return false;
      Category category = (Category) object;
      return code.equals(category.getCode());
   }

   public int hashCode() {
      return code.hashCode();
   }

   public static Category findByID(Collection<Category> categories, Integer categoryID) {
      if (categories != null) {
         for (Category category : categories) {
            Integer id = category.getCategoryId();
            if (id.equals(categoryID)) {
               return category;
            }
         }
      }
      return null;
   }
}