Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly
Sign up
Appearance settings

Commit ceff7c0

Browse files
committed
状态模式
1 parent 196a445 commit ceff7c0

File tree

7 files changed

+64
-0
lines changed

7 files changed

+64
-0
lines changed
Lines changed: 5 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
1+
package com.anxpp.designpattern.state;
2+
//抽象状态
3+
public interface ISaveData {
4+
void save(Object data);
5+
}
Lines changed: 9 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,9 @@
1+
package com.anxpp.designpattern.state;
2+
//具体状态
3+
public enum SaveBigData implements ISaveData{
4+
instance;
5+
@Override
6+
public void save(Object data) {
7+
System.out.println("保存到文件:" + data);
8+
}
9+
}
Lines changed: 15 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,15 @@
1+
package com.anxpp.designpattern.state;
2+
//环境(Context)
3+
public class SaveDataController {
4+
private ISaveData saveData;
5+
public void save(String data){
6+
//为了演示,此处的大的数据其实也是很小的
7+
if(data.length()<1<<2)
8+
saveData = SaveSmallData.instance;
9+
else if(data.length()<1<<4)
10+
saveData = SaveMiddleData.instance;
11+
else
12+
saveData = SaveBigData.instance;
13+
saveData.save(data);
14+
}
15+
}
Lines changed: 9 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,9 @@
1+
package com.anxpp.designpattern.state;
2+
//具体状态
3+
public enum SaveMiddleData implements ISaveData{
4+
instance;
5+
@Override
6+
public void save(Object data) {
7+
System.out.println("保存到Mysql:" + data);
8+
}
9+
}
Lines changed: 9 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,9 @@
1+
package com.anxpp.designpattern.state;
2+
//具体状态
3+
public enum SaveSmallData implements ISaveData{
4+
instance;
5+
@Override
6+
public void save(Object data) {
7+
System.out.println("保存到Redis:" + data);
8+
}
9+
}
Lines changed: 12 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,12 @@
1+
package com.anxpp.designpattern.state;
2+
public class TestUse {
3+
public static void main(String args[]){
4+
String smallData = "小数据";
5+
String middleData = "介于小数据和大数据之间的数据";
6+
String bifgData = "这里就假定这是一个很大很大很大的数据";
7+
SaveDataController saveDataController = new SaveDataController();
8+
saveDataController.save(smallData);
9+
saveDataController.save(middleData);
10+
saveDataController.save(bifgData);
11+
}
12+
}
Lines changed: 5 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,5 @@
1+
/**
2+
* @author Administrator
3+
* 状态模式
4+
*/
5+
package com.anxpp.designpattern.state;

0 commit comments

Comments
(0)

AltStyle によって変換されたページ (->オリジナル) /