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Creating a Java Client WebObjects Application

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Server Files

The server-side project files are, as usual, accessible from the first column of the project browser (the main project). Most notable of these is the Main component (Main.wo ) in the WebComponents suitcase. The Main.html file contains this generated HTML code:

<HTML>
<HEAD>
    <TITLE>Main</TITLE>
</HEAD>
<BODY>
    <CENTER><WEBOBJECT NAME=Applet></WEBOBJECT></CENTER>
</BODY>
</HTML>

The WOJavaClientApplet Component

The "Applet" WEBOBJECT tag in the HTML above represents a WOJavaClientApplet component. Java Client applications use this component to create an applet (of class com.apple.client.interface.EOApplet) and to pass this applet several parameters, some standard, such as size and codebase, and others specific to Java Client applications, such as channel class and interface-controller class.

The Main.wod file created by Project Builder contains the following default bindings for WOJavaClientApplet:

Applet: WOJavaClientApplet {
    height = 512;
    width = 512;
    interfaceControllerClassName =
"studiomanager.client.StudioManager";
    useJavaPlugin = NO;
}

Note that Project Builder automatically provides the binding for interfaceControllerClassName (see " The Interface Controller ," above for details).


The WOJavaClientApplet bindings specific to the EODistribution layer are:

Property

Value

useJavaPlugin

If YES, generates HTML that causes Internet Explorer and Netscape browsers to use SunSoft's Java Plug-in.

distributionContext

The EODistributionContext that the applet uses to handle requests from the client. If no binding is specified, WOJavaClientApplet instantiates one with the session's default editing context and sets the session as the delegate of the distribution context and itself as the invocation target.

interfaceControllerClassName

The name of the initial EOInterfaceController subclass.

applicationClassName

The name of the EOApplication subclass used for the shared application object.

language

The preferred language for the application. This corresponds to a localized language .lproj directory in the application's resources. When searching for localized resources, Java Client first looks in the .lproj directory of the preferred language, next English.lproj
(if English is not the preferred language), and finally
for non-localized resources.

channelClassName

The class name of the distribution channel to be used by the client, EOHTTPChannel by default.

Other Server Files

A Java Client project includes these other server-side files:

Related Concepts: Customizing Your Project With Wizards
\xA9 1999 Apple Computer, Inc.

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