[Memorack] At this point you might think that restricting access to the constructor of a class automatically makes it a Singleton.

[Brian]

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This tip examines a sample application that uses the Java  Persistence
API with the JSF framework.

However, annotations are supported  in web libraries.
The Servlet Let's begin by examining the servlet for the web
application.

The Facade passes the List to the servlet.
You might need to know that answer to check whether user input conforms
to data field length constraints.

The Web Start  environment uses this URL to enforce security among
applications,  ensuring that only your application can access your data.
You'll also learn how to use the WS-Trust  support in WSIT to access a
service in a different security  domain.

You can download the sample archive for the tip How to Get the  Best
Performance Out of a JPA Implementation. When you do this, you don't get
back a Map. How long is your text string?

Entities Used in This Tip  Let's start with two persistent entities.

In their book, the GoF categorized patterns into different subject
areas, of which there are three primary areas: creational, structural,
and behavioral.

It has become quite common  to add a slightly custom look to standard
desktop applications. The key is the lookup name and the value is the
InputStream contents to be stored. A benchmark is a test or tests that
assesses the performance of a product.

You can download the sample archive for the tip Using Generics With Java
Persistence.
In this case, only a user in the  role "arole" will cause the servlet to
retrieve the "message" String and set it as an HttpServletRequest
attribute. You could then display information about the network
interface, such as its name or its InetAddress.

You can download the sample archive for the Using a Model Facade tip.

One of the commonly used creational patterns is the Singleton pattern.

A package that contains the code for the sample application accompanies
the tip.

EntityManager instances are not thread safe, so you should not  inject
them into JSF managed beans that have a scope of session  or application.