The WebObjects Advantage



Apple Computer, Inc. January 2002

CHAPTER 2

What Is WebObjects?

Out of the box, Direct to Web generates Web pages for nine common database tasks,

including querying, editing, and listing. To do this, Direct to Web uses a

task-specific component called a template that can perform the task on any entity.

The templates, in conjunction with a set of rules (which you can customize), are the

essential elements of your Direct to Web application.

Direct to Web is highly customizable. For example, you can change the appearance

of the standard templates, mix traditional HTML-based WebObjects components

with Direct to Web pages, and create custom components and templates that

implement specialized behavior.

Direct to Java Client

Like Direct to Web, Direct to Java Client generates a user interface for common

database tasks using rules to control program flow and it has an assistant that

allows you to modify your applications at runtime. The primary difference between

Direct to Web and Direct to Java Client is the type of application each produces:

Direct to Java Client produces Java Client applications that have the fast and rich

user interfaces associated with desktop applications. Thus, Direct to Java Client

applications have the same client-side requirements that other Java Client

applications do.

The WebObjects Advantage

WebObjects encapsulates a number of key technologies that give it a significant

advantage over other application servers.

Streamlined Database Access

Much of the data that is (or could be) presented on the Web already exists in

electronic form. Not only can it be a challenge to create a website or Web application

to present your data using conventional tools, it can also be a challenge just to access

the data itself. Some products rely on hand- or assistant-generated SQL (Structured

Query Language), leading to database-specific code that is difficult to optimize.

WebObjects avoids these problems by using Enterprise Objects, a model-based

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