FilesExpand file tree

 master

/

EagerSingleton.java

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

24 lines (20 loc) · 881 Bytes

 master

/

EagerSingleton.java

Copy path

Top

File metadata and controls

• Code
• Blame

24 lines (20 loc) · 881 Bytes

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

package singleton;

import net.jcip.annotations.ThreadSafe;

/**

* Created by kennylbj on 2017/5/25.

* The instance of Singleton Class is created at the time of class loading.

* This is the easiest method to create a singleton class but it has a drawback

* that instance is created even though client application might not be using it.

* If your singleton class is not using a lot of resources, this is the approach to use.

* But in most of the scenarios, Singleton classes are created for resources such as

* File System, Database connections etc and we should avoid the instantiation until

* unless client calls the getInstance method.

*/

@ThreadSafe

public class EagerSingleton {

private static final EagerSingleton instance = new EagerSingleton();

private EagerSingleton() {}

public static EagerSingleton getInstance() {

return instance;

}

}