Querydsl is a framework which enables the construction of type-safe SQL-like queries for multiple backends including JPA, JDO and SQL. The screencast uses the Querydsl JPA module in combination with Hibernate and shows the creation of a Java project, the creation of two simple domain types and the creation of a minimal demo service which presents the simplicity of Querydsl query usage.

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This video introduces the OpenSource library Hades that significantly eases implementing data access layers with JPA. It takes the audience on a guided tour through code samples introducing the features of Hades:
* Executing queries by only declaring interface methods
* Extending the EntityManager to provide a typed interface, programmatic pagination and sort support
* Combining execution of finder methods with pagination
* Auditing of entities to keep track of creation and modification date and user
* Integration of custom data access code
* Integration into Spring applications via Spring namespace and Spring IDE extension

Java Persistence API (JPA) 2.0, introduced with Java EE 6, adds in and specifies fully many things which were missing in JPA 1.0. This presentation discusses several features of JPA 2.0 such as advanced locking, enhanced query language, a shared cache API, expression/criteria API, property standardization, more flexible object modeling and more advanced O/R mapping support.
http://www.infoq.com/presentations/whats-new-and-exciting-in-jpa-20

The Java Persistence API (JPA) has taken the Java development world by storm and is now recognized as the enterprise standard for object-relational persistence. The masses have settled into using JPA as a means to persist Java objects to relational databases, but sometimes they require features that are either missing or not fully specified in the 1.0 release. JPA 2.0 is filling in the feature gap and introducing many of the additional features that developers have asked for. We will examine where the current standard stops and where the new …

This tutorial takes you through the various steps involved in installing MySQL and the MySQL GUI tools. Then I install the Java Development Toolkit v 1.6 Update 10 (JDK). After JDK installation, I then extract the Hibernate Core and Hibernate Annotations modules, plucking out the pertinent JAR files, and placing them in a C:\_hiblib folder that will be made part of the runtime and compile time classpath.