Java API for XML

• JAXP is the Java API for XML processing. It allows you to process and transform XML documents using DOM(Document Object Mode), SAX(Simple API for XML), and XSLT(eXtensible Stylesheet Language Transformations). It also allows you to switch between implementations of these standards - for example, from one DOM parser to another - without needing to alter the code.
• JAXB stands for the Java Architecture for XML Binding. It provides a mechanism for mapping between XML elements and Java objects. It compiles your XML schema into Java classes. These generated classes can then handle and parse any XML data as well as checking that al the XML you use is compliant with your requirements. It is an alternative way of processing XML to that provided by the JAXP API.
• SAAJ is the SOAP with Attachments API for Java. It is the basic package for SOAP messaging and allows you to create and populate a SOAP message.
• JAX-RPC is the Java API for XML-based remote procedure calls. It enables you to build SOAP-based applications with RPC functionality in which the method calls are encapsulated in the SOAP messages.
• JAXM is the Java API for XML Messaging. It enables applications to send and receive document-based XML messages. It implements the SOAP 1.1 standard to allow you to focus on sending the SOAP messages rather than creating low-level XML routines. It also facilitates asynchronous communications between web services.
• JAXR is the Java API for XML Registries. It allows you to access different XML registries. Among the registries it allows you to access are those based on the UDDI and ebXML(Electronic Business XML) specifications.