Java bounded non-blocking buffer for high concurrent situation

Question

Basically I need a data structure to store the temporary chatting messages on the server side. It should be:

• bounded: because I don\'t need store too many messa

Answer 1

You can use LinkedBlockingQueue with the non-blocking methods offer (or add) and poll to access it. You can create it with a fixed capacity to make it bounded.

LinkedBlockingQueue myStrings = new LinkedBlockingQueue(100);
myStrings.offer("Hi!"); // returns false if limit is reached
myStrings.add("Hi, again!"); // throws exception if limit is reached
String s = myStrings.poll(); // returns null if queue is empty