IBM Express Runtime V2.1

Chapter 7. Packaging a solution 175

7.3 Packaging a solution with just the application

In a scenario where there is a need to update an existing application (possibly to apply a new

fix level or version), making a package of just the application is the best approach rather than

including all the required middleware in a solution. This gives you the flexibility of not having to

attempt middleware installation, leaving the current middleware configuration intact in your

target environment.

Basically, the same steps provided in Chapter 6, “Developing a wrapper” on page 91 are used

with some minor changes on the part of developing the solution project. You may use the

same application .ser file. However, if you need to change some information in the

application.axml and/or user programs of your project, the application project needs to be

regenerated.

In the solution project, you can modify or create a new solution.sxml with the same

information as your existing version. To make the solution deploy just the application, ensure

that your application (for instance, TradeWin) is the only application in the install task under

the Solution Tasks section of the Tasks page (see Figure 7-12). On the Validation page,

remove all variables that are not required during the deployment of your application. Rebuild

the solution using the procedure in 6.2.6, “Building the Trade6 solution” on page 143.

Figure 7-12 Install task for single application solution

This scenario produces the following files:

򐂰 TradeWinSolution.ser (application only)

򐂰 tradewin.xx.userPrograms.jar

򐂰 tradewin.xx.jar

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Your user programs will check for all prerequisites, such as the existence of DB2 or

WebSphere Application server on the target system, but if some middleware is not installed,

your solution will not install it.

You may now make a package out of these files for deployment.