<HTML><HEAD><TITLE>Xalan-C++ API Documentation</TITLE></HEAD>
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<h2 align="center">Xalan-C++ API Documentation</h2>
<h3 align="center">The Xalan C++ XSLT Processor Version 1.4</h3>
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<hr><h1>XNull Class Reference</h1><code>#include <<a class="el" href="XNull.hpp-source.html">XNull.hpp</a>></code>
<p>
<p>Inheritance diagram for XNull:
<p><center><img src="class_xnull.gif" usemap="#XNull_map" border="0"></center>
<map name="XNull_map"><p>
<area href="class_xobject.html" alt="XObject" shape="rect" coords="0,56,188,80">
<area href="class_xalanreferencecountedobject.html" alt="XalanReferenceCountedObject" shape="rect" coords="0,0,188,24">
</map>
Collaboration diagram for XNull:<p><center><img src="class_xnull_coll_graph.gif" border="0" usemap="#XNull_impl_map"></center>
<map name="XNull_impl_map">
<area href="class_xobject.html" shape="rect" coords="245,128,304,106">
<area href="class_xalanreferencecountedobject.html" shape="rect" coords="7,37,196,16">
<area href="class_xalandomstring.html" shape="rect" coords="220,37,329,16">
<area href="class_xobjectfactory.html" shape="rect" coords="353,37,455,16">
</map><p>
<a href="class_xnull-members.html">List of all members.</a><h2>Public Methods</h2>
<ul>
<li>explicit <a class="el" href="class_xnull.html#a0">XNull</a> ()
<dl class="el"><dd><font size=-1><em>Create an XNull.</em></font></dl><li><a class="el" href="class_xnull.html#a1">XNull</a> (const XNull& source)
<dl class="el"><dd><font size=-1><em>Create an XNull from another.</em> <a href="#a1">More...</a><em></em></font></dl><li>virtual <a class="el" href="class_xnull.html#a2">~XNull</a> ()
<li>virtual XNull* <a class="el" href="class_xnull.html#a3">clone</a> (void* theAddress = 0) const
<dl class="el"><dd><font size=-1><em>Clone the instance.</em> <a href="#a3">More...</a><em></em></font></dl><li>virtual <a class="el" href="class_xalandomstring.html">XalanDOMString</a> <a class="el" href="class_xnull.html#a4">getTypeString</a> () const
<dl class="el"><dd><font size=-1><em>Given a request type, return the equivalent string.</em> <a href="#a4">More...</a><em></em></font></dl><li>virtual double <a class="el" href="class_xnull.html#a5">num</a> () const
<dl class="el"><dd><font size=-1><em>Cast result object to a number.</em> <a href="#a5">More...</a><em></em></font></dl><li>virtual bool <a class="el" href="class_xnull.html#a6">boolean</a> () const
<dl class="el"><dd><font size=-1><em>Cast result object to a boolean.</em> <a href="#a6">More...</a><em></em></font></dl><li>virtual const <a class="el" href="class_xalandomstring.html">XalanDOMString</a>& <a class="el" href="class_xnull.html#a7">str</a> () const
<dl class="el"><dd><font size=-1><em>Cast result object to a string.</em> <a href="#a7">More...</a><em></em></font></dl><li>virtual void <a class="el" href="class_xnull.html#a8">str</a> ( <a class="el" href="class_formatterlistener.html">FormatterListener</a>& formatterListener, <a class="el" href="class_xobject.html#s0">MemberFunctionPtr</a> function) const
<dl class="el"><dd><font size=-1><em>Send the string value to a <a class="el" href="class_formatterlistener.html">FormatterListener</a> instance.</em> <a href="#a8">More...</a><em></em></font></dl><li>virtual void <a class="el" href="class_xnull.html#a9">ProcessXObjectTypeCallback</a> (<a class="el" href="class_xobjecttypecallback.html">XObjectTypeCallback</a>& theCallbackObject)
<dl class="el"><dd><font size=-1><em>Process a callback request for preferred type information.</em> <a href="#a9">More...</a><em></em></font></dl><li>virtual void <a class="el" href="class_xnull.html#a10">ProcessXObjectTypeCallback</a> (<a class="el" href="class_xobjecttypecallback.html">XObjectTypeCallback</a>& theCallbackObject) const
<dl class="el"><dd><font size=-1><em>Process a callback request for preferred type information.</em> <a href="#a10">More...</a><em></em></font></dl></ul>
<hr><a name="_details"></a><h2>Detailed Description</h2>
<p>
<hr><h2>Constructor & Destructor Documentation</h2>
<a name="a0" doxytag="XNull::XNull"><p>
<table width=100% cellpadding=2 cellspacing=0 border=0>
<tr>
<td class="md"><b>
<table cellspadding=0 cellspacing=0 border=0>
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<td><b>
explicit XNull::XNull ()</b></td></tr>
</b></td>
</tr>
</table>
</td>
</tr>
</table>
</a>
<div class="in">
<p>
Create an XNull.
<p>
</div>
<a name="a1" doxytag="XNull::XNull"><p>
<table width=100% cellpadding=2 cellspacing=0 border=0>
<tr>
<td class="md"><b>
<table cellspadding=0 cellspacing=0 border=0>
<tr>
<td><b>
XNull::XNull (
</b></td>
<td><b>
const XNull & <em>source</em>)</b></td></tr>
</b></td>
</tr>
</table>
</td>
</tr>
</table>
</a>
<div class="in">
<p>
Create an XNull from another.
<p>
<dl compact><dt>
<b>Parameters: </b><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>source</em>
</td><td>
object to copy
</td></tr>
<tr><td valign=top><em>deepClone</em>
</td><td>
true to copy all children on nodeset nodes
</td></tr>
</table>
</dl></div>
<a name="a2" doxytag="XNull::~XNull"><p>
<table width=100% cellpadding=2 cellspacing=0 border=0>
<tr>
<td class="md"><b>
<table cellspadding=0 cellspacing=0 border=0>
<tr>
<td><b>
virtual XNull::~XNull ()<code> [virtual]</code></b></td></tr>
</b></td>
</tr>
</table>
</td>
</tr>
</table>
</a>
<div class="in">
<p>
</div>
<hr><h2>Member Function Documentation</h2>
<a name="a10" doxytag="XNull::ProcessXObjectTypeCallback"><p>
<table width=100% cellpadding=2 cellspacing=0 border=0>
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<td class="md"><b>
<table cellspadding=0 cellspacing=0 border=0>
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<td><b>
virtual void XNull::ProcessXObjectTypeCallback (
</b></td>
<td><b>
<a class="el" href="class_xobjecttypecallback.html">XObjectTypeCallback</a> & <em>theCallbackObject</em>) const<code> [virtual]</code></b></td></tr>
</b></td>
</tr>
</table>
</td>
</tr>
</table>
</a>
<div class="in">
<p>
Process a callback request for preferred type information.
<p>
<dl compact><dt>
<b>Parameters: </b><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>theCallbackObject</em>
</td><td>
object to call back
</td></tr>
</table>
</dl>
<p>
Reimplemented from <a class="el" href="class_xobject.html#a12">XObject</a>.</div>
<a name="a9" doxytag="XNull::ProcessXObjectTypeCallback"><p>
<table width=100% cellpadding=2 cellspacing=0 border=0>
<tr>
<td class="md"><b>
<table cellspadding=0 cellspacing=0 border=0>
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<td><b>
virtual void XNull::ProcessXObjectTypeCallback (
</b></td>
<td><b>
<a class="el" href="class_xobjecttypecallback.html">XObjectTypeCallback</a> & <em>theCallbackObject</em>)<code> [virtual]</code></b></td></tr>
</b></td>
</tr>
</table>
</td>
</tr>
</table>
</a>
<div class="in">
<p>
Process a callback request for preferred type information.
<p>
<dl compact><dt>
<b>Parameters: </b><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>theCallbackObject</em>
</td><td>
object to call back
</td></tr>
</table>
</dl>
<p>
Reimplemented from <a class="el" href="class_xobject.html#a11">XObject</a>.</div>
<a name="a6" doxytag="XNull::boolean"><p>
<table width=100% cellpadding=2 cellspacing=0 border=0>
<tr>
<td class="md"><b>
<table cellspadding=0 cellspacing=0 border=0>
<tr>
<td><b>
virtual bool XNull::boolean () const<code> [virtual]</code></b></td></tr>
</b></td>
</tr>
</table>
</td>
</tr>
</table>
</a>
<div class="in">
<p>
Cast result object to a boolean.
<p>
<dl compact><dt>
<b>Returns: </b><dd>
boolean value
</dl>
<p>
Reimplemented from <a class="el" href="class_xobject.html#a5">XObject</a>.</div>
<a name="a3" doxytag="XNull::clone"><p>
<table width=100% cellpadding=2 cellspacing=0 border=0>
<tr>
<td class="md"><b>
<table cellspadding=0 cellspacing=0 border=0>
<tr>
<td><b>
virtual XNull* XNull::clone (
</b></td>
<td><b>
void * <em>theAddress</em> = 0) const<code> [virtual]</code></b></td></tr>
</b></td>
</tr>
</table>
</td>
</tr>
</table>
</a>
<div class="in">
<p>
Clone the instance.
<p>
<dl compact><dt>
<b>Parameters: </b><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>If</em>
</td><td>
theAddress is not null, the <a class="el" href="class_xobject.html">XObject</a> will clone itself into that address.
</td></tr>
</table>
</dl><dl compact><dt>
<b>Returns: </b><dd>
a clone of the instance.
</dl>
<p>
Reimplemented from <a class="el" href="class_xobject.html#a2">XObject</a>.</div>
<a name="a4" doxytag="XNull::getTypeString"><p>
<table width=100% cellpadding=2 cellspacing=0 border=0>
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<td class="md"><b>
<table cellspadding=0 cellspacing=0 border=0>
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<td><b>
virtual <a class="el" href="class_xalandomstring.html">XalanDOMString</a> XNull::getTypeString () const<code> [virtual]</code></b></td></tr>
</b></td>
</tr>
</table>
</td>
</tr>
</table>
</a>
<div class="in">
<p>
Given a request type, return the equivalent string.
<p>
For diagnostic purposes.
<p>
<dl compact><dt>
<b>Returns: </b><dd>
string for type
</dl>
<p>
Reimplemented from <a class="el" href="class_xobject.html#a3">XObject</a>.</div>
<a name="a5" doxytag="XNull::num"><p>
<table width=100% cellpadding=2 cellspacing=0 border=0>
<tr>
<td class="md"><b>
<table cellspadding=0 cellspacing=0 border=0>
<tr>
<td><b>
virtual double XNull::num () const<code> [virtual]</code></b></td></tr>
</b></td>
</tr>
</table>
</td>
</tr>
</table>
</a>
<div class="in">
<p>
Cast result object to a number.
<p>
<dl compact><dt>
<b>Returns: </b><dd>
numeric value
</dl>
<p>
Reimplemented from <a class="el" href="class_xobject.html#a4">XObject</a>.</div>
<a name="a8" doxytag="XNull::str"><p>
<table width=100% cellpadding=2 cellspacing=0 border=0>
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<td class="md"><b>
<table cellspadding=0 cellspacing=0 border=0>
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<td><b>
virtual void XNull::str (
</b></td>
<td><b>
<a class="el" href="class_formatterlistener.html">FormatterListener</a> & <em>formatterListener</em>, </b></td></tr>
<tr><td></td><td><b>
<a class="el" href="class_xobject.html#s0">MemberFunctionPtr</a> <em>function</em>) const<code> [virtual]</code></b></td></tr>
</b></td>
</tr>
</table>
</td>
</tr>
</table>
</a>
<div class="in">
<p>
Send the string value to a <a class="el" href="class_formatterlistener.html">FormatterListener</a> instance.
<p>
<dl compact><dt>
<b>Parameters: </b><dd>
<table border=0 cellspacing=2 cellpadding=0>
<tr><td valign=top><em>formatterListener</em>
</td><td>
The <a class="el" href="class_formatterlistener.html">FormatterListener</a> instance
</td></tr>
<tr><td valign=top><em>function</em>
</td><td>
A pointer to the member function of <a class="el" href="class_formatterlistener.html">FormatterListener</a> to call
</td></tr>
</table>
</dl>
<p>
Reimplemented from <a class="el" href="class_xobject.html#a7">XObject</a>.</div>
<a name="a7" doxytag="XNull::str"><p>
<table width=100% cellpadding=2 cellspacing=0 border=0>
<tr>
<td class="md"><b>
<table cellspadding=0 cellspacing=0 border=0>
<tr>
<td><b>
virtual const <a class="el" href="class_xalandomstring.html">XalanDOMString</a>& XNull::str () const<code> [virtual]</code></b></td></tr>
</b></td>
</tr>
</table>
</td>
</tr>
</table>
</a>
<div class="in">
<p>
Cast result object to a string.
<p>
<dl compact><dt>
<b>Returns: </b><dd>
string value
</dl>
<p>
Reimplemented from <a class="el" href="class_xobject.html#a6">XObject</a>.</div>
<hr>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="XNull.hpp.html">XNull.hpp</a></ul>
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