Assembling applications that use the Java Persistence API

Assembling a JPA application in a Java EE environment
You have developed and configured your applications to work with the Java™ Persistence API (JPA). Now you need to package the JPA applications for your environment.
Assembling JPA applications for a Java SE environment
You have developed and configured your applications to work with the Java Persistence API (JPA). Now you must package the JPA applications for your environment.
Using JPA access intent
Java Persistence API (JPA) access intent specifies the isolation level and lock level used when reading data from a data source. Access intent controls the Java Database Connectivity (JDBC) isolation level and whether read, update, or exclusive locks are acquired when retrieving data.
Associating persistence providers and data sources
Java Persistence API (JPA) applications specify the underlying data source that is used by the persistence provider to access the database.