This paper describes Java Commerce Messages (JCMs), a format developed for communication between commerce servers and the Java Commerce Framework (JCF). JCMs convey essential data concerning electronic commerce transactions from commerce servers to the JCF. The JCF parses incoming JCMs and passes the structured data they contain to the system components that execute the transaction. This paper describes the JCM format, its relation with Commerce JavaBeans components, and how developers can enable servers to interact with the JCF.
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