Tapestry tutorials and documentation
 * http://people.apache.org/~uli/tapestry-site/tutorial.html
 * http://people.apache.org/~uli/tapestry-site/documentation.html

Hibernate 
 * HQL - http://docs.jboss.org/hibernate/core/3.5/reference/en/html/queryhql.html
 * Criteria API - http://docs.jboss.org/hibernate/core/3.5/reference/en/html/querycriteria.html