<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Chapter 22. ElementRef and ElementHolder Wappers</title>
<link rel="stylesheet" href="apiReference.css" type="text/css" />
<meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
<link rel="start" href="index.html" title="Berkeley DB C++ Standard Template Library API Reference" />
<link rel="up" href="index.html" title="Berkeley DB C++ Standard Template Library API Reference" />
<link rel="prev" href="dbstl_helper_classes.html" title="Chapter 21. Dbstl Helper Classes" />
<link rel="next" href="ElementHolder.html" title="Chapter 23. ElementHolder" />
</head>
<body>
<div class="navheader">
<table width="100%" summary="Navigation header">
<tr>
<th colspan="3" align="center">Chapter 22.
ElementRef and ElementHolder Wappers </th>
</tr>
<tr>
<td width="20%" align="left"><a accesskey="p" href="dbstl_helper_classes.html">Prev</a> </td>
<th width="60%" align="center"> </th>
<td width="20%" align="right"> <a accesskey="n" href="ElementHolder.html">Next</a></td>
</tr>
</table>
<hr />
</div>
<div class="chapter" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h2 class="title"><a id="Element_wrappers"></a>Chapter 22.
ElementRef and ElementHolder Wappers </h2>
</div>
</div>
</div>
<p>An <a class="link" href="ElementRef.html" title="Chapter 24. ElementRef">ElementRef</a>
and <a class="link" href="ElementHolder.html" title="Chapter 23. ElementHolder">ElementHolder</a>
object represents the reference to the data element referenced by an iterator. </p>
<p>Each iterator object has an <a class="link" href="ElementRef.html" title="Chapter 24. ElementRef">ElementRef</a>
or <a class="link" href="ElementHolder.html" title="Chapter 23. ElementHolder">ElementHolder</a>
object that stores the data element that the iterator points to.</p>
<p>The <a class="link" href="ElementHolder.html" title="Chapter 23. ElementHolder">ElementHolder</a>
class is used to store primitive types into STL containers.</p>
<p>The <a class="link" href="ElementRef.html" title="Chapter 24. ElementRef">ElementRef</a>
class is used to store other types into STL containers.</p>
<p>The <a class="link" href="ElementRef.html" title="Chapter 24. ElementRef">ElementRef</a>
and <a class="link" href="ElementHolder.html" title="Chapter 23. ElementHolder">ElementHolder</a>
classes have identical interfaces, and are treated the same by other STL classes. Since the <a class="link" href="ElementRef.html" title="Chapter 24. ElementRef">ElementRef</a>
class inherits from the template data class, all methods have a _DB_STL_ prefix to avoid name clashes.</p>
<p>An <a class="link" href="ElementRef.html" title="Chapter 24. ElementRef">ElementRef</a>
or <a class="link" href="ElementHolder.html" title="Chapter 23. ElementHolder">ElementHolder</a>
class corresponds to a single iterator instance. An Element object is generally owned by an iterator object. The ownership relationship is swapped in some specific situations, specifically for the dereference and array index operator. </p>
<h4><a id="id1568376"></a> Public Members </h4>
<div class="informaltable">
<table border="1" width="80%">
<colgroup>
<col />
<col />
</colgroup>
<thead>
<tr>
<th>Member</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<a class="link" href="ElementRef.html" title="Chapter 24. ElementRef">
ElementRef</a>
</td>
<td>
ElementRef</td>
</tr>
<tr>
<td>
<a class="link" href="ElementHolder.html" title="Chapter 23. ElementHolder">
ElementHolder</a>
</td>
<td>
ElementHolder</td>
</tr>
</tbody>
</table>
</div>
<h4><a id="id1568813"></a>
Group</h4>
<p>
<a class="xref" href="dbstl_helper_classes.html" title="Chapter 21. Dbstl Helper Classes">
Dbstl Helper Classes </a>
</p>
<p>
</p>
</div>
<div class="navfooter">
<hr />
<table width="100%" summary="Navigation footer">
<tr>
<td width="40%" align="left"><a accesskey="p" href="dbstl_helper_classes.html">Prev</a> </td>
<td width="20%" align="center"> </td>
<td width="40%" align="right"> <a accesskey="n" href="ElementHolder.html">Next</a></td>
</tr>
<tr>
<td width="40%" align="left" valign="top">Chapter 21.
Dbstl Helper Classes </td>
<td width="20%" align="center">
<a accesskey="h" href="index.html">Home</a>
</td>
<td width="40%" align="right" valign="top"> Chapter 23.
ElementHolder </td>
</tr>
</table>
</div>
</body>
</html>
distrib
>
Mandriva
>
2010.1
>
x86_64
>
media
>
main-release
>
by-pkgid
>
a00abf5f94bf470fd4cc9e10b2d135e0
>
files
>
751
