Chapter 12 Creating CORBA-Java Components

Define the component interface and properties

The definition of a Java component specifies the interfaces that the component implements as well as its other properties.

Defining the component's interfaces

All component interfaces for Jaguar components are defined in CORBA IDL modules that are stored in Jaguar's IDL repository. Chapter 6, "Defining Component Interfaces" describes how to define IDL interfaces.

Java component developers typically use one of the following to define the interface or interfaces that their component implements:

Implement a Java source file and import the methods from it As an alternative to IDL, you can define a Java class or interface, then use Jaguar Manager to import the method definitions from the compiled Java bytecode file. Jaguar creates a new component definition and an IDL interface that matches the methods defined in the Java file. For more information on this feature, see "Importing interfaces from compiled Java files ".
Use existing interfaces from Jaguar's IDL repository In some cases, client and server component developers may have agreed upon an existing interface or several interfaces that your component must implement. In this case, it is up to you, the component developer, to implement the specified interface. Jaguar stores HTML documentation for all interfaces in the IDL repository in the html/ir subdirectory of your Jaguar installation.
Define a new IDL interface or interfaces If you are defining the interface yourself, you can use Jaguar Manager's IDL editor to create a new interface for the component. "Defining modules and interfaces in IDL" describes how.

If you have an IDL interface If you are starting with an IDL interface rather than an existing class file, you can use Jaguar Manager to create a class that contains the necessary method declarations. See "Generate stub, skeleton, and implementation files" for more information.

Specify component properties

In Jaguar Manager, the Component Properties window configures the settings that Jaguar uses to load the component and invoke its methods. See "Configuring component properties" for more information.