Introduction

Welcome to 3270 Pathway, a Java Bean which allows access to Telnet 3270 end-systems from Java applications and applets.

Some of the features 3270 Pathway provides include:

• Direct access to TN3270 systems.
• Ability to incorporate a TN3270 emulator into your own Java programs.
• Optional graphical display.
• Property change event generation.
• Support for 3270 models 2, 3, 4 and 5 in both extended and non-extended mode.
• Host system time-out control.
• Fully customizable settings.

The components that are shipped in this release are:

• The 3270 Pathway Bean
• The 3270 Pathway Navigation Recorder
• A 3270 Pathway Terminal
• A TCP Router

The Java Archive Files (JARs) for these components are supplied in the lib directory. The JAR files are runnable and can be invoked in the usual manner. They do not need to be uncompressed or have files extracted from them. Start-up scripts are also supplied within the bin directory.

All of the components are written in Java and require a Java Virtual Machine (JVM) of version 1.4.1 or later to operate. Information for obtaining JVMs for most operating systems can be found at java.sun.com. An appropriate JVM is shipped with the Windows version of 3270 Pathway.

For further instruction on using any of these components please refer to the Sun 3270 Pathway User's Guide

3270 Pathway Bean

Users wishing to program directly to the bean should read the associated javadoc API documentation.

Note:Users of previous version of 3270 Pathway, will find it useful to read the migration guide.

The 3270 Pathway Bean conforms to the Java Bean standards and so can be used anywhere that supports Java Beans. For more information on Java or Java Beans visit java.sun.com

Using the Pathway Bean within a Java Application

• Write your Java Application and reference the bean as you would any other Object. Remember to include the relevant import statements.
• Ensure your CLASSPATH is referencing the jar file: pathway_bean.jar
• Compile and run the program.

Look at the supplied samples for simple examples of using the 3270 Pathway Bean in a Java Application.

Using the Pathway Bean within a Java Applet

• Write your Java Applet and reference the bean as you would any other Object. Remember to include the relevant import statements.
• Compile the Java source.
• Create some HTML that points to the applet class.
• Load your HTML in a browser that supports the required level of Java.

Look at the supplied sample 3270 Pathway Bean Sample for a simple example of using the 3270 Pathway Bean within a Java Applet.

Note: Under the Java applet security model it is not possible to connect to any other host other than one from which it was served. In order to address this you may want to consider running the TCP Router on your Web Server machine.

Using the Pathway Bean within an IDE