Location Paths
Although there are many different kinds of XPath expressions, the one that's of primary use in Java programs is the location path. A location path selects a set of nodes from an XML document. Each location path is composed of one or more location steps. Each location step has an axis, a node test and, optionally, one or more predicates. Furthermore, each location step is evaluated with respect to a particular context node. A double colon (::) separates the axis from the node test, and each predicate is enclosed in square brackets.
Some examples will help explain these terms. Consider the simple XML-RPC request document in Example 16.3.
The Differences between the XPath and DOM Data ModelsThe XPath data model is similar to the ... |
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