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Tutorial
7

Step 3: Define a Spring DAO Component

= em.createQuery( "SELECT g FROM Guest g ORDER BY g.id", Guest.class); return ...  Guest objects from the database. By using Spring components we can move some work from
Tutorial
7

Step 3: Define a Spring DAO Component

( "SELECT g FROM Guest g ORDER BY g.id", Guest.class); return query ... from the database. By using Spring components we can move some work from the application to the Spring
Tutorial
7

Step 3: Define an EJB Session Bean

() { TypedQuery query = em.createQuery( "SELECT g FROM Guest g ORDER BY g.id", Guest ... - for retrieving all the existing Guest objects from the database. EJB classes are only supported by Java EE ... and Jetty. By using EJB classes we can move some work from the application to the EJB container (i.e
Tutorial
7

Step 3: Define an EJB Session Bean

> getAllGuests() { TypedQuery query = em.createQuery( "SELECT g FROM Guest g ... the database. getAllGuests - for retrieving all the existing Guest objects from the database. EJB classes ... containers, such as Tomcat and Jetty. By using EJB classes we can move some work from the application
Tutorial
7

Step 4: Add a Servlet Class

: List guestList = em.createQuery( "SELECT g FROM Guest g", Guest.class ... is retrieved from the application scope attribute, and then an EntityManager (representing a database ... entity objects are retrieved from the database and stored in the request's "guest" attribute
Tutorial
7

Step 4: Add a Servlet Class

.createQuery( "SELECT g FROM Guest g", Guest.class).getResultList(); request ... operations on every http request: The EntityManagerFactory is retrieved from the application scope attribute ... is constructed and stored in the database. All the Guest entity objects are retrieved from
JPA Doc
6

javax.persistence.criteria.CollectionJoin

>, FetchParent, From, Join, Path, PluralJoin,E>, Selection, TupleElementfrom the get operation in order to avoid the use of Path variables ... .from(Person.class); q.select(p) .where(cb.isMember("joe", p. >get("nicknames
JPA Doc
6

javax.persistence.criteria.CriteriaBuilder

> x, String pattern, int from) Create expression to locate the position of one string ... for string to be searched pattern - string to be located from - position at which to start search ...  pattern, Expression from) Create expression to locate the position of one string
JPA Doc
6

javax.persistence.criteria.Join

>, From, Path, Selection, TupleElement Subinterfaces: CollectionJoin, ListJoin, MapJoin ... attribute. Note: Applications using the string-based API may need to specify the type resulting from ... q = cb.createQuery(Person.class); Root p = q.from(Person.class); q.select(p
JPA Doc
6

javax.persistence.criteria.ListJoin

>, From, Join, Path, PluralJoin,E>, Selection, TupleElement The ListJoin ... attribute. Note: Applications using the string-based API may need to specify the type resulting from ... q = cb.createQuery(Person.class); Root p = q.from(Person.class); q