Using HSQL in-memory database as JPA datasource

Question

I have an in-memory data source:

java.sql.Connection c = DriverManager.getConnection(\"jdbc:hsqldb:mem:testdb\", \"sa\", \"\");            
emf = Persistence         


        

Answer 1

/*What to enter here?*/

Well, nothing. In a Java SE environment, you'll have to use the built-in connection pool from your JPA provider and the setup looks like this:

  
    org.hibernate.ejb.HibernatePersistence
    com.acme.Foo
    ...