A Comprehensive Guide to IBM WebSphere Host Publisher Version 3.5

Chapter 1. Overview 29

Figure 1-14 Host Publisher EJB execution

Note: The EJB Access Bean is also an EJB client and communicates with the

provided Host Publisher EJB via RMI/IIOP.

The Host Publisher session EJB executes the Integration Object (IO) and

packages its output properties, passing it back to the access bean as the result

of the execution method. These output properties are used to generate values for

the output properties of the access bean, which can be subsequently used in a

JSP, Java application or to another EJB.

For sample scenarios and more details about how Enterprise JavaBeans (EJBs)

can be used with Host Publisher, see Chapter 17, “EJB application support” on

page 503.

1.9.9 XML Gateway

IBM WebSphere Host Publisher Version 3.5 has an XML gateway that allows you

to access your 3270 and 5250 application using XML content. The Host

Publisher XML Legacy Gateway (XLGW) communicates with a host application

in XML data format. The XML data interface is encapsulated using a JavaBean.

The XML data representing the host application windows can be modified and

integrated into other Java applications, applets, JavaBeans, or servlets.

Interaction with the host program can be manipulated by Java using XML

formatting and techniques. See Chapter 18, “XML Legacy Gateway” on page 567

for an architectural overview of the XML Legacy Gateway feature of Host

Publisher.