A Comprehensive Guide to IBM WebSphere Host Publisher Version 3.5

570 IBM WebSphere Host Publisher Version 3.5

򐂰 If you wish to use more than one XML Legacy Gateway session

simultaneously, it is recommended that you use a separate browser window

for each session.

򐂰 It is recommended that the browser window be dedicated to the XML Legacy

Gateway session. If you open an XML Legacy Gateway session and then use

the browser window for other work, it is possible that the XML Legacy

Gateway session will be interrupted.

򐂰 When using the XML Legacy Gateway for terminal emulation in Microsoft

Internet Explorer Version 5.0, do not open new browser windows using File ->

New -> Windows. This causes multiple copies of the emulation session to be

split between existing and new browser windows and will result in inaccurate

terminal-emulation output.

򐂰 Input fields in the terminal emulation feature of the XML Legacy Gateway

default to insert mode. Because of this, cursor input is inhibited when these

fields are filled with characters. (Bear in mind that a space is a valid

character.) In this case, it is necessary to press the Insert key to toggle the

field to overwrite mode.

򐂰 With some Web browsers, it is possible that text cut or copied from the XML

Legacy Gateway window and pasted into a text file will be misaligned.

18.3 HTML to Host sample program

Host Publisher 3.5 provides a sample program that shows you how to use the

XML interface to write servlets that can interact with host applications. You can

modify this sample to create a servlet that manipulates host application XML

data-handling techniques. To do this, the sample code uses two Host

Publisher-supplied JavaBeans.

򐂰 The first bean is called HostConnection bean, and it allows a program to

acquire and release session beans using the Host Publisher Server runtime

environment.

򐂰 The second bean is called the xmlAppData Bean, and it provides the XML

interface to the host application windows.

The sample code uses these two beans and the XSL processor that comes with

IBM WebSphere to translate the XML data into HTML format. This transformation

can give you insight into how you can use XSL processing to render XML data on

devices that have different display criteria.

The sample code implements a subset of the functionality that comes with the

Host Publisher XML Legacy Gateway feature. This feature allows users to view

and interact with host application windows in a Web browser.