| <html><head><META http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>How to use XPath 2.0 functions with PsychoPath</title><link href="book.css" rel="stylesheet" type="text/css"><link href="../book.css" rel="stylesheet" type="text/css"><meta content="DocBook XSL Stylesheets V1.74.0" name="generator"><link rel="home" href="index.html" title="XPath 2.0 Processor User Manual"><link rel="up" href="index.html" title="XPath 2.0 Processor User Manual"><link rel="prev" href="ch02s03s11.html" title="SequenceType Matching Expressions"><link rel="next" href="ch03s02.html" title="Constructor Functions"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="chapter" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="How_to_use_XPath_2.0_functions_with_PsychoPath"></a>How to use XPath 2.0 functions with PsychoPath</h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><ul><li><span class="section"><a href="ch03.html#Accessors">Accessors</a></span></li><li><span class="section"><a href="ch03s02.html">Constructor Functions</a></span></li><li><span class="section"><a href="ch03s03.html">Functions on Numeric Values</a></span></li><li><span class="section"><a href="ch03s04.html">Functions to Assemble and Disassemble Strings</a></span></li><li><span class="section"><a href="ch03s05.html">Compare and Other Functions on String Values</a></span></li><li><span class="section"><a href="ch03s06.html">Functions Based on Substring Matching</a></span></li><li><span class="section"><a href="ch03s07.html">String Functions that Use Pattern Matching</a></span></li><li><span class="section"><a href="ch03s08.html">Functions on Boolean Values</a></span></li><li><span class="section"><a href="ch03s09.html">Component Extraction Functions on Durations, Dates and |
| Times</a></span></li><li><span class="section"><a href="ch03s10.html">Functions Related to QNames</a></span></li><li><span class="section"><a href="ch03s11.html">Functions on Nodes</a></span><ul><li><span class="section"><a href="ch03s11.html#General_Functions_on_Sequences">General Functions on Sequences</a></span></li><li><span class="section"><a href="ch03s11s02.html">Functions That Test the Cardinality of Sequences</a></span></li><li><span class="section"><a href="ch03s11s03.html">Deep-Equal, Aggregate Functions, and Functions that Generate |
| Sequences</a></span></li><li><span class="section"><a href="ch03s11s04.html">Context Functions</a></span></li></ul></li></ul></div><p>The aim of this section is to give the user an overview of the |
| available XPath 2.0 functions that are implemented in PsychoPath. For the |
| formal specifications, see the W3C web-site for XPath 2.0 functions and |
| operators <a class="ulink" href="http://www.w3.org/TR/xpath-functions/" target="_top">http://www.w3.org/TR/xpath-functions/</a>.</p><div class="section" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="Accessors"></a>Accessors</h2></div></div></div><p>In order for PsychoPath to operate on instances of the XPath 2.0 |
| data model, the model must expose the properties of the items it |
| contains. It does this by defining a family of accessor functions. These |
| functions are not available to users or applications to call directly. |
| Instead, they are descriptions of the information that an implementation |
| of the model must expose to applications.</p><p>data(‘string’)</p><p>from within a Java application, in order to extract the result |
| from the result sequence, one would have to use this code:</p><p><pre class="programlisting">String n = ((XSString)rs.first()).stringvalue(); |
| println(n);</pre></p><p>In order to get the result of ‘string’</p></div></div></body></html> |
