创建者模式Builder

  1 package builder.domain;
  2 
  3 /**
  4  * 宇宙飞船
  5  *
  6  */
  7 public class AirShip {
  8     private OrbitalModule orbitalModule;  //轨道舱
  9     private Engine engine; //发动机
 10     private EscapeTower escapeTower;  //逃逸塔
 11     
 12     
 13     public void launch(){
 14         System.out.println("发射！");
 15     }
 16 
 17 
 18     public OrbitalModule getOrbitalModule() {
 19         return orbitalModule;
 20     }
 21 
 22 
 23     public void setOrbitalModule(OrbitalModule orbitalModule) {
 24         this.orbitalModule = orbitalModule;
 25     }
 26 
 27 
 28     public Engine getEngine() {
 29         return engine;
 30     }
 31 
 32 
 33     public void setEngine(Engine engine) {
 34         this.engine = engine;
 35     }
 36 
 37 
 38     public EscapeTower getEscapeTower() {
 39         return escapeTower;
 40     }
 41 
 42 
 43     public void setEscapeTower(EscapeTower escapeTower) {
 44         this.escapeTower = escapeTower;
 45     }
 46 }
 47 
 48 
 49 package builder.domain;
 50 
 51 public class Engine {
 52     private String name;
 53 
 54     public Engine(String name) {
 55         this.name = name;
 56     }
 57 
 58     public String getName() {
 59         return name;
 60     }
 61 
 62     public void setName(String name) {
 63         this.name = name;
 64     }
 65 }
 66 
 67 
 68 package builder.domain;
 69 
 70 public class EscapeTower {
 71     private String name;
 72 
 73     public String getName() {
 74         return name;
 75     }
 76 
 77     public void setName(String name) {
 78         this.name = name;
 79     }
 80 
 81     public EscapeTower(String name) {
 82         super();
 83         this.name = name;
 84     }
 85 }
 86 
 87 
 88 package builder.domain;
 89 
 90 public class OrbitalModule {
 91     private String name;
 92     
 93     public OrbitalModule(String name)
 94     {
 95         this.name = name;
 96     }
 97 
 98     public String getName() {
 99         return name;
100     }
101 
102     public void setName(String name) {
103         this.name = name;
104     }
105     
106     
107 }
108 
109 
110 package builder.service;
111 
112 import builder.domain.Engine;
113 import builder.domain.EscapeTower;
114 import builder.domain.OrbitalModule;
115 
116 public interface IAirShipBuilder {
117     Engine builderEngine();
118     OrbitalModule builderOrbitalModule();
119     EscapeTower  builderEscapeTower();
120 }
121 
122 
123 package builder.service;
124 
125 import builder.domain.Engine;
126 import builder.domain.EscapeTower;
127 import builder.domain.OrbitalModule;
128 
129 public class AirShipBuilderImpl implements IAirShipBuilder {
130     //StringBuilder, 以后学习XML解析中，JDOM库中的类：DomBuilder,SaxBuilder
131     @Override
132     public Engine builderEngine() {
133         // TODO Auto-generated method stub
134         System.out.println("构建发动机！");
135         return new Engine("发动机！");
136     }
137 
138     @Override
139     public OrbitalModule builderOrbitalModule() {
140         // TODO Auto-generated method stub
141         System.out.println("构建轨道舱");
142         return new OrbitalModule("轨道舱");
143     }
144 
145     @Override
146     public EscapeTower builderEscapeTower() {
147         // TODO Auto-generated method stub
148         System.out.println("构建逃逸塔");
149         return new EscapeTower("逃逸塔");
150     }
151 
152 }
153 
154 
155 package builder;
156 
157 import builder.domain.AirShip;
158 
159 public interface IAirShipDirector {
160     /**
161      * 组装飞船对象
162      * @return
163      */
164     AirShip   directAirShip();
165 }
166 
167 
168 package builder;
169 
170 import builder.domain.AirShip;
171 import builder.domain.Engine;
172 import builder.domain.EscapeTower;
173 import builder.domain.OrbitalModule;
174 import builder.service.IAirShipBuilder;
175 
176 public class AirshipDirectorImpl implements IAirShipDirector {
177     private IAirShipBuilder builder;
178     
179     public AirshipDirectorImpl(IAirShipBuilder builder) {
180         this.builder = builder;
181     }
182     
183     @Override
184     public AirShip directAirShip() {
185         // TODO Auto-generated method stub
186         Engine e = builder.builderEngine();
187         OrbitalModule o = builder.builderOrbitalModule();
188         EscapeTower et = builder.builderEscapeTower();
189         
190         //装配成飞船对象
191         AirShip ship = new AirShip();
192         ship.setEngine(e);
193         ship.setEscapeTower(et);
194         ship.setOrbitalModule(o);
195         
196         return ship;
197     }
198 
199 }
200 
201 package builder;
202 
203 import builder.domain.AirShip;
204 import builder.service.AirShipBuilderImpl;
205 
206 public class Client {
207 
208     public static void main(String[] args) {
209         // TODO Auto-generated method stub
210         IAirShipDirector director = new AirshipDirectorImpl(new AirShipBuilderImpl());
211 
212         AirShip ship = director.directAirShip();
213         
214         System.out.println(ship.getEngine().getName());
215         
216         ship.launch();
217     }
218 
219 }