By Brett McLaughlin

With the XML ''buzz'' nonetheless dominating speak between web builders, there is a actual have to how to lower throughout the hype and placed XML to paintings. Java & XML exhibits tips on how to use the APIs, instruments, and tips of XML to construct real-world functions. the result's code and knowledge which are moveable. This moment variation provides chapters on complex SAX and complex DOM, new chapters on cleaning soap and knowledge binding, and new examples all through. Following a concise advent to XML fundamentals, the remainder of the e-book makes a speciality of utilizing XML out of your Java functions. Java builders who have to paintings with XML, or imagine that they are going to within the future--as good as builders excited by the hot peer-to-peer circulation, messaging, or internet services--will locate Java & XML a relentless better half. encompasses a quickly reference on SAX 2.0, DOM point 2, and JDOM.

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Xml. 0), this behavior has moved back to accepting normal filenames. 2. 44 Java & XML, 2nd Edition The rather boring output shown in Figure 3-1 may make you doubt that anything has happened. However, if you lean nice and close, you may hear your hard drive spin briefly (or you can just have faith in the bytecode). In fact, the XML document is parsed. However, no callbacks have been implemented to tell SAX to take action during the parsing; without these callbacks, a document is parsed quietly and without application intervention.

Be sure to distinguish your XSL elements from other elements (such as HTML elements) with proper use of namespaces. Instead of applying a template, you can use the value-of construct to obtain the value of an element, and provide the element name to match through the select attribute. In the example, the character data within the title element is extracted and used as the title of the HTML form to output. On the other hand, when you want to cause the templates associated with an element's children to be applied, use apply-templates.

This ability makes XPath very useful and handy; it also causes the introduction of some additional terms. The result of evaluating an XPath expression is generally referred to as a node set. This name shouldn't be surprising, as it is in line with the idea of a hierarchical or tree structure, often dealt with in terms of its leaves or nodes. The resultant node set can then be transformed, copied, or ignored, or have any other legal operation performed on it. In addition to expressions to select node sets, XPath also defines several node set functions, such as not( ) and count( ).

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