Establishing Interportlet Communications

Overview of Interportlet Communications

The WebLogic Portal IPC Model

Event Handlers

Portal Event Actions

Custom Events

Event Actions

How IPC is Implemented

Setting Up the Examples

Parts of a Portal Application

Step 1: Create the Domain

Step 2: Create the Enterprise Application

Step 3: Create the Portal Web Application (Project)

Summary

Next Steps

A Simple Example of Establishing IPC

Before You Begin

Step 1: Create the Portlets

Create the JSP FIles and Portlets

Create the Backing File

Attach the Backing File

Add the Event Handler to bPortlet

Step 2: Test the Application

Summary

Establishing IPC by Using Custom and Page Flow Events

What is a Custom Event?

What is a Page Flow Event?

Establishing Interportlet Communications by Using Custom and Page Flow Event Handlers: An Example

How this Example Achieves IPC

Before You Begin

Note on Entering Text in Dialog Boxes

Step 1: Create the File Structure

Summary

Step 2: Create the Backing Files

Summary

Step 3: Create the Customer Lookup Results Portlet

Create the Page Flow (FindCustomerController.jpf)

Create findCustomer.jsp

Create result.jsp

Create the Customer Lookup Portlet

Attach the Backing File

Create the Event Handlers

Step 4: Create the Orders Lookup Portlet

Create the Page Flow (FindOrderController.jpf)

Create findOrderForm.jsp

Create orderResults.jsp

Create the Portlet File

Attach the Backing File

Create the Event Handlers

Summary

Step 5: Create the Customer Lookup Portlet

Create the Page Flow (FindCustomerController.jpf)

Update index.jsp

Create result.jsp

Create the Portlet File

Attach the Backing File

Create the Event Handler

Summary

Step 6: Create and Populate the Portal File

Create the Portal File

Add Portlets to the Portal

Step 7: Test the Portal

Understanding Backing Files

What are Backing Files?

Which Controls Support Backing Files?

How Backing Files are Executed

Other Execution Notes

Thread Safety with Backing Files

Creating a Backing File

Adding a Backing File to a Portlet

Adding the Backing File by Using WebLogic Workshop

Adding the Backing File Directly to the .portlet Code