Rogue Wave JViews TGO Sample: Network Component - Basic

Description

This sample shows how to use the basic features of the Rogue Wave JViews TGO network component.

How to Use the Sample

The main frame contains a basic network component, with several different types of nodes and links displayed on a background map. A network component has a default toolbar which provides a set of predefined interactors:

Select
Pan
Reset Zoom
Zoom In
Zoom Out
Zoom Back
Fit to Contents
Zoom on Rectangle

When the select interactor is enabled, you can expand nodes that contain objects. The sample includes such a node: SubNetwork. To expand the node, click the

icon at the top right of the node. To collapse the expanded node, click the

icon at the top right of the expanded node frame.

How to Run the Sample as an Application

This sample can also be run as an application. The installation directory contains an executable JAR file, network-basic.jar, that allows you to execute the sample with a double click from a file browser. Note that if you are using Internet Explorer, you can open the installation directory and execute the JAR file from the browser. This technique may not work in other Web browsers.

Alternatively, you can run the sample application from the command line. First check that the Ant utility is properly configured. If not, see the instructions on how to configure Ant for Rogue Wave JViews.

Then, go to the installation directory of the sample and type:

ant run

Topics Covered

Initializing a JTGO application using a deployment descriptor
Creating a network component
Reading project information from an XML file containing CSS configuration and data source configuration

Detailed Description

This sample shows how to create a network component and use its basic features. The code of this sample can be found in the doSample method. To create a network component, the sample includes the following steps:

Initialize the application using the method ilog.tgo.IltSystem.Init. You can pass a deployment descriptor file to this method. This file contains information about global settings for the application.
In this sample, the descriptor is called deploy and contains directories to be added to the search path.
These directories are necessary to locate:
- the background file of the network and other bitmaps in the resources directory,
- the data source file and the network configuration files in the data directory.
Create a network component.
The network component is of class ilog.cpl.IlpNetwork.
Load a project configuration (project) from an XML file.
The project configuration defines the component configuration files (CSS files) and the data source information.
When the project file is set, the following steps are performed:
- The configuration files are applied to the component.
- A data source is created according to the class specified in the project configuration. In this case, it creates a standard data source of class ilog.tgo.datasource.IltDefaultDataSource
- The data file network is read containing predefined JTGO classes (business objects).
- And finally the data source is attached to the network component.
The component configuration can also be specified in the network component constructor or later through the method ilog.cpl.IlpNetwork.setStyleSheets, you pass the name of a configuration file (network) which describes the:
- Buttons to add to the toolbar
  For a list of available buttons, see the ilog.cpl.network.renderer.IlpToolBarRenderer class.
- Default interactor to use
  This should be the name of one of the buttons of the toolbar.
- Background file to load
  For a list of available background file types, see the ilog.cpl.network.renderer.IlpBackgroundsRenderer class.
- Object representation properties
The data source and its contents can also be specified in the network component through the method ilog.cpl.IlpNetwork.setDataSource and ilog.cpl.datasource.IlpDefaultDataSource.parse.
Add the network to your Swing application.
IlpNetwork is a Swing JComponent, which means that it can be added to your application like any other Swing component.

Installation Directory

The Network Component - Basic sample is installed here.

Classes Involved

ilog.tgo.IltSystem
The class that initializes a JViews TGO application.
ilog.tgo.datasource.IltDefaultDataSource
The default data source implementation.
ilog.cpl.IlpNetwork
The network component.
ilog.cpl.model.IlpObject
The business object definition.
ilog.cpl.project.IlpTGOProject
The project definition.
ilog.cpl.network.renderer.IlpToolBarRenderer
This class gives control over the toolbar of a network component.
ilog.cpl.network.renderer.IlpBackgroundsRenderer
This class gives control over the backgrounds of a network component.

Source Files

basic.Main
The entry point of the sample.
basic.AlarmPopupMenuFactory
The factory that creates the pop-up menu in the objects.
basic.ShowDetailsAction
The action that displays details about objects upon a double-click.