Apple WebObjects 5 Bedienungsanleitung PDF herunterladen (Seite 17)

CHAPTER 2

What Is WebObjects?

Web-Enabled Client-Server Applications



Apple Computer, Inc. January 2002

buttons, checkboxes, and tables) to complex ones (for example, toolbars). The set of

components that you can use with WebObjects is extensible, so you can create

components that can be reused across all of your Web applications.

Your application isn’t entirely built out of components. You create WebObjects

applications from a combination of components and Java classes. You put your

application-specific business logic in some of these classes. WebObjects provides

the rest of them.

The basic structure of an HTML-based Web application matches that of a dynamic

publishing site that uses WebObjects. Thus, Figure 2-2 (page 15) applies to

HTML-based Web applications as well.

Java Client Applications

When you need the fast and rich user interface of desktop client-server applications,

you can partition your application so that a portion of it—including all or part of the

user interface—runs in Java directly on the client. Client-server communication is

handled by WebObjects. WebObjects applications that are partitioned in this way

are known as

Java Client

applications.

Java Client distributes the objects of your WebObjects application between the

application server and one or more clients—typically Java applications. It is based

on a distributed multi-tier client-server architecture where processing duties are

divided between a client, an application server, a database server, and an HTTP

server. With a Java Client application, you can partition business objects containing

business logic and data into a client side and a server side. This partitioning can

improve performance and at the same time help to secure legacy data and business

rules.

Figure 2-3 (page 18) illustrates a Java Client application in which the client portion

is running as an application installed on the user’s computer. As with an

HTML-based WebObjects application, the application can communicate with the

server side using HTTP. In addition, Java Client passes objects between a portion of

your application residing on the user’s computer and the portion of your

application that remains on the application server.

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 107 108

Kommentare zu diesen Handbüchern

Keine Kommentare

Modèles	Type de document
ECO HB	Manuel de l'utilisateur Imetec ECO HB User Manual, 26 pages
DOLCEVITA HB2 500	Manuel de l'utilisateur Imetec DOLCEVITA HB2 500 User Manual, 25 pages
PROFESSIONAL SERIE HB 2000	Manuel de l'utilisateur Imetec PROFESSIONAL SERIE HB 2000 User Manual, 54 pages
DOLCEVITA HB2	Manuel de l'utilisateur Imetec DOLCEVITA HB2 User Manual, 30 pages
PROFESSIONAL SERIE BL 1000	Manuel de l'utilisateur Imetec PROFESSIONAL SERIE BL 1000 Manual del usuario, 26 pages
DOLCEVITA BL4	Manuel de l'utilisateur Imetec DOLCEVITA BL4 User Manual, 26 pages
PROFESSIONAL SERIE BL	Manuel de l'utilisateur Imetec PROFESSIONAL SERIE BL User Manual, 38 pages
ECO BL	Manuel de l'utilisateur Imetec ECO BL User Manual, 42 pages

Apple WebObjects 5 Bedienungsanleitung Seite 17

Kommentare zu diesen Handbüchern

Imetec DOLCEVITA CH4 manuels

Imetec DOLCEVITA CH4 Manuel de l'utilisateur (24 pages)

Table des matières

Plus de produits et de manuels pour Mixeurs Imetec

Apple WebObjects 5 Bedienungsanleitung Seite 17

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Software Apple WebObjects 5

Imetec DOLCEVITA CH4 manuels

Imetec DOLCEVITA CH4 Manuel de l'utilisateur (24 pages)

Table des matières

Plus de produits et de manuels pour Mixeurs Imetec