state.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.Table;

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

   private Integer stateId;

   private String code;

   private String description;

   public State() {
   }

   public State(String code, String description) {
      this.code = code;
      this.description = description;
   }

   @Id
   @Column(name = "us_state_id")
   public Integer getStateId() {
      return this.stateId;
   }

   public void setStateId(Integer stateId) {
      this.stateId = stateId;
   }

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

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

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

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

   public String toString() {
      String id = stateId != null ? stateId.toString() : "<no ID>";
      return "State " + id + ":\nCode: " + code + "\nDescription: " + description + "\n";
   }

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

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

   public static State findByID(Collection<State> states, Integer stateID) {
      if (states != null) {
         for (State state : states) {
            Integer id = state.getStateId();
            if (id.equals(stateID)) {
               return state;
            }
         }
      }
      return null;
   }
}