1 Summary of the Java EE Upgrade Process

This chapter provides a high-level overview of how you can upgrade your Java EE environment and your deployed applications from Oracle Application Server 10g and Oracle Containers for Java EE (OC4J) to Oracle Fusion Middleware 11g and Oracle WebLogic Server.

Refer to the following sections for more information:

1.1 Flow Chart of the Java EE Upgrade Process

Figure 1-1 provides a flow chart of the Java EE upgrade process. Review this chart to get familiar with the tasks you will be required to perform.

Figure 1-1 Flow Chart of the Java EE Upgrade Process

Description of Figure 1-1 follows
Description of "Figure 1-1 Flow Chart of the Java EE Upgrade Process"

1.2 Table Describing the Steps in the Java EE Upgrade Process

Table 1-1 describes each of the steps in the upgrade process flow chart, which is shown in Figure 1-1. The table also provides information on where to get more information on each step in the process.

Table 1-1 Table Describing the Steps in the Java EE Upgrade Process

Step Description More Information

Prepare for Upgrade

Before you begin the upgrade of your Java EE applications and environment from OC4J to Oracle WebLogic Server:

  • Review the key concepts of Oracle WebLogic Server and how they differ from OC4J.

  • Understand the different installation and configuration tasks required for Oracle WebLogic Server.

  • Review the administration tools and processes you will have to use in the Oracle WebLogic Server environment.

Part I, "Preparing for a Java EE Upgrade"

Upgrade Your Deployed Applications

Modify the applications as necessary so they will deploy and run successfully on Oracle WebLogic Server

Chapter 4, "Upgrading Your Java EE Applications"

Set up an Oracle WebLogic Server Environment

After you upgrade your application source code, you can then install and configure an Oracle WebLogic Server environment for the application.

When you configure the Oracle WebLogic Server domain, you an also configure any resources required by the application.

Chapter 5, "Upgrading Your Java EE Environment"

Upgrade Your Application Clients

Upgrade any client applications that depend upon the applications you have upgraded to Oracle WebLogic Server.

Chapter 6, "Upgrading Application Clients"

Configure a Web Tier

Optionally, install and configure a Web tier to route requests to your test and production environments.

If you were using Oracle HTTP Server or Oracle Web Cache in Oracle Application Server 10g, then you can upgrade your Oracle HTTP Server and Oracle Web Cache configuration using the Oracle Fusion Middleware Upgrade Assistant.

Chapter 7, "Upgrading a Java EE and Web Server Environment"