bookDAO

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package wipb.jee.clientdemo.ejb;

import java.util.List;
import javax.annotation.sql.DataSourceDefinition;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.TypedQuery;
import wipb.jee.clientdemo.model.Book;


@DataSourceDefinition(
        name="java:global/DemoDS",
        className="org.apache.derby.jdbc.ClientDataSource",
        minPoolSize = 1,
        initialPoolSize = 1,
        portNumber = 1527,
        serverName = "localhost",
        user = "app",
        password = "app",
        databaseName = "testdb11"
)
@Stateless
public class BookDao {
    @PersistenceContext(unitName = "wipb_ee-std-client-demo-ejb_ejb_1.0PU")
    private EntityManager em;

    public void save(Book book) {
        em.persist(book);
    }

    public List<Book> findAll() {
        TypedQuery<Book> q = em.createNamedQuery("Book.findAll", Book.class);
        return q.getResultList();
    }

    public void remove(Long id) {
        em.remove(em.getReference(Book.class, id));
    }
}