Support Forums: Message List - synchronized hashMap or Hashtable?

synchronized hashMap or Hashtable?

Wed, 05 Jan 2011 09:56:31 -0500

The synchronized collections classes, Hashtable and Vector, and the synchronized wrapper classes, Collections.synchronizedMap and Collections.synchronizedList, provide a basic conditionally thread-safe implementation of Map and List.
However,...

synchronized hashMap or Hashtable?

Mon, 19 Nov 2001 22:48:55 -0500

Yes, there will be only one thread in your EJB at any point of time. This is guaranteed by the specs....

synchronized hashMap or Hashtable?

Tue, 06 Nov 2001 09:11:40 -0500

Would it cause me any problems (according to performance etc) - to use synchronization in my EJBs - like Hashtables or explicit synchronization of my methods (EJB methods or in objects that are used by my EJB). ...

synchronized hashMap or Hashtable?

Mon, 05 Nov 2001 18:20:21 -0500

IMO, the important thing is that in most of your code (except initialization) you use Map. This gives you the freedom to select different implementations as needed....

synchronized hashMap or Hashtable?

Mon, 05 Nov 2001 05:13:43 -0500

Is there any significant difference between using a Hashtable (always synchronized) and using Collections.synchronizedMap(HashMap)???

Please give me your opinions about when to use one or the other.