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29

Query in JPA2 with LEFT JOIN on INNER JOIN

How write a query in JPA2 with LEFT JOIN on INNER JOIN? select a.description, a.id, p1.description, p2.description,p3.description from action a left join action_profile ap1 on ap1.id_action=a.id inner join profile p1 on ap1.id_profile=p1.id and p1.name='?' left join action_profile ap2 on ap2
6

JPA / JDO Class Enhancer

. Setting a Java Agent Enhancer in the IDE In Eclipse JVM arguments can be set globally at: Window
6

Is ObjectDB better than competing object databases?

community, forums, IDEs support, tools, books, tutorials and sample code. ObjectDB is also unique in
5

javax.persistence.GeneratedValue

conjunction with the Id annotation. The use of the GeneratedValue annotation is only required ... primary keys. Example 1: @Id @GeneratedValue(strategy=SEQUENCE, generator="CUST_SEQ") @Column(name="CUST_ID") public Long getId() { return id; } Example 2: @Id
1

Step 3: Define a Spring DAO Component

= em.createQuery( "SELECT g FROM Guest g ORDER BY g.id", Guest.class); return
1

Step 5: Add a JSP Page

" pageEncoding="ISO-8859-1"%> <%@page import="guest.*"%> <jsp:useBean id="guestDao" type="guest.GuestDao
1

Step 3: Define an EJB Session Bean

ORDER BY g.id", Guest.class); return query.getResultList(); } } The GuestDao session
1

Step 3: Define a Spring DAO Component

( "SELECT g FROM Guest g ORDER BY g.id", Guest.class); return query
0

Which API should I use - JPA or JDO?

the availability of experienced developers, forums, IDEs support, tools, books, tutorials and sample
0

[ODB1] Chapter 7 - JDOQL Queries

object IDs from lower to higher, which means that objects will be returned in the order in

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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