About Iris Shoor
Practically all server applications require some sort of synchronization between multiple threads. Most of the synchronization work is done for us at the framework level, such as by our web server, DB client or messaging framework. Java and Scala provide a multitude of components to write solid multi-threaded applications. These include object pools, concurrent collections, advanced locks, execution contexts etc..
To better understand these, let’s explore the most synchronization idiom – the Object lock. This mechanism powers the synchronized keyword, making it one of, if not the most popular multi-threading idiom in Java. It is also at the base of many of the more complex patterns we use such as thread and connection pools, concurrent collections and more.
The synchronized keyword is used in two primary contexts:
Source : http://www.javacodegeeks.com/2013/08/5-things-you-didnt-know-about-synchronization-in-java-and-scala.html
