item.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.math.BigDecimal;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.PrimaryKeyJoinColumn;
import javax.persistence.SecondaryTable;
import javax.persistence.SequenceGenerator;
import javax.persistence.Table;
import javax.persistence.Version;

/**
 * @author Borys Burnayev
 */
@Entity
@Table(name = "item")
@SequenceGenerator(name = "ItemSeq", sequenceName = "sq_item")
@SecondaryTable(name = "sku", pkJoinColumns = @PrimaryKeyJoinColumn(name = "item_sysid"))
public class Item {

   private Integer itemId;

   private String code;

   private String description;

   private String imagePath;

   private Product product;

   private BigDecimal price;

   private Integer availableQuantity;

   private int version;

   @Column(name = "row_version")
   @Version
   public int getVersion() {
      return version;
   }

   public void setVersion(int version) {
      this.version = version;
   }

   public Item(String code, String description, String imagePath, BigDecimal price, Integer availableQuantity,
            Product product) {
      this.code = code;
      this.description = description;
      this.imagePath = imagePath;
      this.price = price;
      this.availableQuantity = availableQuantity;
      this.product = product;
   }

   public Item() {
   }

   @Id
   @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "ItemSeq")
   @Column(name = "item_sysid")
   public Integer getItemId() {
      return this.itemId;
   }

   public void setItemId(Integer itemSysid) {
      this.itemId = itemSysid;
   }

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

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

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

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

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

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

   @ManyToOne
   @JoinColumn(name = "product_sysid", referencedColumnName = "product_sysid")
   public Product getProduct() {
      return this.product;
   }

   public void setProduct(Product product) {
      this.product = product;
   }

   @Column(table = "sku", name = "unit_pr")
   public BigDecimal getPrice() {
      return price;
   }

   public void setPrice(BigDecimal price) {
      this.price = price;
   }

   @Column(table = "sku", name = "available_qt")
   public Integer getAvailableQuantity() {
      return availableQuantity;
   }

   public void setAvailableQuantity(Integer availableQuantity) {
      this.availableQuantity = availableQuantity;
   }

   public String toString() {
      String id = itemId != null ? itemId.toString() : "<no ID>";
      return "Item " + id + ":\nCode: " + code + "\nDescription: " + description + "\nPrice: " + price
               + "\nAvailable Quantity: " + availableQuantity + "\nImage Path: " + imagePath + "\n" + product;
   }

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

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