title: Hibernate "connection.pool_size" property in case of using datasource
body: <p>I am using hibernate 4.0.1 in my Portlet application which deployed on Websphere application server, I am referring to datasource configured on the application server from the hibernate configuration, my question is should I use "connection.pool_size" property OR "c3p0" to set the connection pool size or no ? , As the data source on server already have connection pool size with 10.</p>
  
  <p>In other words, Which take the priority, the Hibernate configuration or the datasource configuration for connection pooling and which is better ? </p>
  
  <p>Thanks in advance.</p>