We will write a simple hibernate3 application to get started with hibernate3.

Before starting, you should:

Hibernate 4 jars can be downloaded from the SourceForge web site at http://sourceforge.net/projects/hibernate/files/hibernate4.  If this url doesn’t work or get changed, just search ‘hibernate 4 jars download sourceforge’ in Google.  The distribution version downloaded here is 4.2.4. Except for the version numbers, the jar names and folder structure should be same across any version of hibernate4 distribution.  

Hibernate 3 jars can be downloaded from the SourceForge web site at http://sourceforge.net/projects/hibernate/files/hibernate3. If this url doesn’t work or get changed, just search ‘hibernate 3 jars download sourceforge’ in Google.

Directly under the distribution folder, you can find below jars:

• hibernate3.jar
• hibernate-testing.jar

The content of this topic has been moved to the latest hibernate notebook. New url is http://javajee.com/what-is-hibernate.

A Future interface provides methods to check if the computation is complete, to wait for its completion, and to retrieve the result of the computation. The result is retrieved using method get when the computation has completed, and it blocks until it is ready. If a task completes  by  throwing  an  exception,  corresponding Future.get  rethrows  it  wrapped  in  an  ExecutionException;  and if  it  was  cancelled,  get throws CancellationException.  The submit method in the ExecutorService return a Future when you submit a Runnable or a Callable.