High Quality Content by WIKIPEDIA articles! Codehaus XFire is a Java SOAP framework for development and consumption of web services. Unlike earlier similar products, such as Apache Axis 1.x that use in-memory tree models (such as DOM) for XML, XFire uses StAX resulting in better performance. Apache Axis2 also uses StAX. SOAP, originally defined as Simple Object Access Protocol, is a protocol specification for exchanging structured information in the implementation of Web Services in computer networks. It relies on eXtensible Markup Language (XML) as its message format, and usually relies on other Application Layer protocols (most notably Remote Procedure Call (RPC) and HTTP) for message negotiation and transmission. SOAP can form the foundation layer of a web services protocol stack, providing a basic messaging framework upon which web services can be built. This XML based protocol consists of three parts: an envelope (which defines what is in the message and how to process it), a set of encoding rules for expressing instances of application-defined datatypes, and a convention for representing procedure calls and responses.

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