A Comprehensive Guide to IBM WebSphere Host Publisher Version 3.5

348 IBM WebSphere Host Publisher Version 3.5

5. The Middle in Chain Integration Object is invoked using the same connection.

The order of execution is checked.

6. The Last in Chain Integration Object is invoked using the same connection.

The order of execution is checked and the Disconnect macro runs after this

object.

12.1.1 First Integration Object

To build the first Integration Object in the object chain, follow these steps:

1. Use the wizard within the Host Access application to define a connection as

you normally would. See Chapter 5, “Connection management” on page 117

for information about defining connections.

2. Select Create a New Pool in the Host Configuration panel.

3. Record your Connect macro and your Data macro. See Chapter 7, “Host

Integration Objects” on page 199 for information about recording macros.

4. You will probably not end your data loop macro at the same point where you

began (so that another Integration Object can pick up where you've stopped).

Navigate to the desired ending point for the data loop macro, and click Stop

Recording on the toolbar.

5. Navigate back to the point where you can disconnect from the host.

6. Highlight the Disconnect macro node in the macro tree, and click Record.

7. Record your Disconnect macro.

8. Before you start building the Integration Object, select Options -> Configure

Object Chaining. In the window that appears, specify a stop state label for

this Integration Object and specify also that this object should be first. Host

Publisher uses start and stop state labels to identify the Integration Objects

that precede or follow this one. For example, if this Integration Object has a

stop state label of

connected, only Integration Objects that have connected

with a start state label can follow this Integration Object in a chain.

9. Save the Integration Object.

12.1.2 Middle Integration Object

To record a middle Integration Object in the chain, follow these steps:

1. Use the wizard within the Host Access application to create another

Integration Object. When you define the connection, click Share an existing

connection pool and select the configuration you used for the first

Integration Object. All Integration Objects in the same object chain must use

the same connection configuration.