Develop > Controller layer > Payments subsystem

Create a payment plug-in

Before you begin

Before creating a payment plug-in for use in WebSphere Commerce, you should:

• Be familiar with Java programming

• Review the Payment plug-in specification

• Review the API information related to the plug-in specification: com.ibm.commerce.payments.plugin

You can create a payment plug-in with or without WebSphere Commerce, or with or without WebSphere Commerce Developer or Rational Application Developer. The following instructions summarize how to create a payment plug-in using Rational Application Developer. If you are not using Rational Application Developer, follow comparable procedures to do the following steps:

• Create an EJB stateless session bean.

• Ensure the plug-in remote interface extends the Plugin or QueryablePlugin interface.

• Create a plug-in deployment descriptor.

• Create a JAR file (EJB module).

To create a new payment plug-in using Rational Application Developer, perform the following steps:

Procedure

1. Create a payment plug-in using Rational Application Developer

   1. Create a new EJB project using the EJB 2.0 specification.

      • In the EAR project field, enter WC.

      • For available dependent JAR files, include Payments-Plugin.jar.

      The project name should reflect the name of the plug-in.

   2. Create a new EJB bean for the plug-in project. Specify the bean is a session bean with a stateless session type. The bean creation should generate a plugin_name.java, plugin_nameBean.java, and plugin_nameHome.java files. The bean must implement the methods described in the Plugin interface (see the API information for more information). Your plug-in remote interface must extend the Plugin, Plugin_V2, or QueryablePlugin interface. Be sure to follow the Plugin specification when creating plug-in files.

   3. Build the plug-in project to compile the enterprise bean.

   4. Generate deployment code for the enterprise bean.

2. Package the payment plug-in.
   

3. Install the payment plug-in.
   

• Package a payment plug-in
  

Related concepts

Payment financial transaction state

Plug-in exception handling and transaction roll-back

Related reference

Payment plug-in specification

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