Creating EJB 3.0 Entity Relationships - EJB 3.0 Database Persistence with Oracle Fusion Middleware 11g

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In the Edition entity replace:

@ManyToMany(cascade =

{ CascadeType.MERGE, CascadeType.PERSIST,

CascadeType.REFRESH },

mappedBy = "editions")

with:

@ManyToMany(cascade =

{ CascadeType.MERGE, CascadeType.PERSIST,

CascadeType.REFRESH },

mappedBy = "editions", fetch = FetchType.EAGER)

In the Edition entity replace:

@OneToMany(cascade = CascadeType.ALL, mappedBy = "edition")

with:

@OneToMany(cascade = CascadeType.ALL, mappedBy = "edition",

fetch = FetchType.EAGER)

In the Section entity replace:

@OneToMany(cascade={CascadeType.ALL},mappedBy = "section")

with:

@OneToMany(cascade={CascadeType.ALL},

mappedBy = "section",fetch=FetchType.EAGER)

Also, modify the EJB3Client.jsp . Instead of just listing all the entities, list the

contained entities. For example, retrieve all the editions in a catalog with the

getCatalogEditions() method:

List<Edition> editions=beanRemote.getCatalogEditions(catalog);

Similarly, retrieve all the sections in an edition with the EditionSections method

and all the articles in a section with the getSectionArticles() method. The

modified EJB3Client.jsp is listed next:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"

"http://www.w3.org/TR/html4/loose.dtd">

<%@ page import="model.*,java.util.*,javax.naming.*"%>

<%@ page contentType="text/html;charset=windows-1252"%>

<html>

<head>

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