atmarammuduli

 Profile Answers by atmarammuduli 

• Jul 10th, 2008

 

There r several way to create Singleton object:
1. By using single static private object & using a static method while returning same object on every call.
2. using a static boolean flag for checking the internal static singleton object is initialized or not and returning same object if it is true.
3. (Advanced) Using ThreadLocal class. This is real singleton object. No other factory classs cant create same object again.

atmarammuduli

 Profile Answers by atmarammuduli 

• Jul 10th, 2008

 

refer my previos rep:

Method 3 is a way to create per thread singleton object. ie. every thread will have its own singleton object for its own disposal.

Method 2,1 will fall into a waiting state for singleton object until freed from other thread, adding to performance issue.