<?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 23. ElementHolder</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="Element_wrappers.html" title="Chapter 22. ElementRef and ElementHolder Wappers" /> <link rel="next" href="stlElementHolderdstr_ElementHolder.html" title="~ElementHolder" /> </head> <body> <div xmlns="" class="navheader"> <div class="libver"> <p>Library Version 11.2.5.3</p> </div> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">Chapter 23. ElementHolder </th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="Element_wrappers.html">Prev</a> </td> <th width="60%" align="center"> </th> <td width="20%" align="right"> <a accesskey="n" href="stlElementHolderdstr_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="ElementHolder"></a>Chapter 23. ElementHolder </h2> </div> </div> </div> <p>A wrapper class for primitive types. </p> <p>It has identical usage and public interface to the <a class="link" href="ElementRef.html" title="Chapter 24. ElementRef">ElementRef</a> class. </p> <h4><a id="idp1232776"></a> See Also </h4> <p> </p> <p><a class="link" href="ElementRef.html" title="Chapter 24. ElementRef">ElementRef</a> . </p> <p> </p> <h4><a id="idp1247424"></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="xref" href="ElementHolder.html#stlElementHolderElementHolder" title="ElementHolder">ElementHolder</a> </td> <td> <p>Constructor. </p> </td> </tr> <tr> <td> <a class="xref" href="stlElementHolderdstr_ElementHolder.html" title="~ElementHolder">~ElementHolder</a> </td> <td> <p>Destructor. </p> </td> </tr> <tr> <td> <a class="xref" href="stlElementHolderoperator_ia.html" title="operator+=">operator+=</a> </td> <td> </td> </tr> <tr> <td> <a class="xref" href="stlElementHolderoperator_sa.html" title="operator-=">operator-=</a> </td> <td> </td> </tr> <tr> <td> <a class="xref" href="stlElementHolderoperator__ma.html" title="operator *=">operator *=</a> </td> <td> </td> </tr> <tr> <td> <a class="xref" href="stlElementHolderoperator_da.html" title="operator/=">operator/=</a> </td> <td> </td> </tr> <tr> <td> <a class="xref" href="stlElementHolderoperator_modasg.html" title="operator%=">operator%=</a> </td> <td> </td> </tr> <tr> <td> <a class="xref" href="stlElementHolderoperator__aa.html" title="operator &=">operator &=</a> </td> <td> </td> </tr> <tr> <td> <a class="xref" href="stlElementHolderoperator_oa.html" title="operator|=">operator|=</a> </td> <td> </td> </tr> <tr> <td> <a class="xref" href="stlElementHolderoperator_xa.html" title="operator^=">operator^=</a> </td> <td> </td> </tr> <tr> <td> <a class="xref" href="stlElementHolderoperator_gt_ge.html" title="operator>>=">operator>>=</a> </td> <td> </td> </tr> <tr> <td> <a class="xref" href="stlElementHolderoperator_lt_le.html" title="operator<<=">operator<<=</a> </td> <td> </td> </tr> <tr> <td> <a class="xref" href="stlElementHolderoperator_incr.html" title="operator++">operator++</a> </td> <td> </td> </tr> <tr> <td> <a class="xref" href="stlElementHolderoperator_decr.html" title="operator--">operator--</a> </td> <td> </td> </tr> <tr> <td> <a class="xref" href="stlElementHolderoperator_assign.html" title="operator=">operator=</a> </td> <td> </td> </tr> <tr> <td> <a class="xref" href="stlElementHolderoperator_ptype.html" title="operator ptype">operator ptype</a> </td> <td> <p>This operator is a type converter. </p> </td> </tr> <tr> <td> <a class="xref" href="stlElementHolder_DB_STL_value.html" title="_DB_STL_value">_DB_STL_value</a> </td> <td> <p>Returns the data element this wrapper object wraps;. </p> </td> </tr> <tr> <td> <a class="xref" href="stlElementHolder_DB_STL_StoreElement.html" title="_DB_STL_StoreElement">_DB_STL_StoreElement</a> </td> <td> <p>Function to store the data element. </p> </td> </tr> </tbody> </table> </div> <h4><a id="idp1154296"></a> Group</h4> <p> <a class="xref" href="Element_wrappers.html" title="Chapter 22. ElementRef and ElementHolder Wappers"> ElementRef and ElementHolder Wappers </a> </p> <p> </p> <div class="sect1" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h2 class="title" style="clear: both"><a id="stlElementHolderElementHolder"></a>ElementHolder</h2> </div> </div> </div> <div class="sect2" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h3 class="title"><a id="stlElementHolderElementHolder_details"></a>Function Details</h3> </div> </div> </div> <pre class="programlisting"> ElementHolder(iterator_type *pitr=NULL) </pre> <p>Constructor. </p> <p>If the pitr parameter is NULL or the default value is used, the object created is a simple wrapper and not connected to a container. If a valid iterator parameter is passed in, the wrapped element will be associated with the matching key/data pair in the underlying container. </p> <div class="sect3" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h4 class="title"><a id="idp1242368"></a>Parameters</h4> </div> </div> </div> <div class="sect4" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h5 class="title"><a id="idp1275208"></a>pitr</h5> </div> </div> </div> <p>The iterator owning this object. </p> </div> </div> <pre class="programlisting"> ElementHolder(const ptype &dt) </pre> <p>Constructor. </p> <p>Initializes an <a class="link" href="ElementRef.html" title="Chapter 24. ElementRef">ElementRef</a> wrapper without an iterator. It can only be used to wrap a data element in memory, it can't access an unerlying database. </p> <div class="sect3" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h4 class="title"><a id="idp1277480"></a>Parameters</h4> </div> </div> </div> <div class="sect4" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h5 class="title"><a id="idp1277672"></a>dt</h5> </div> </div> </div> <p>The base class object to initialize this object. </p> </div> </div> <pre class="programlisting"> ElementHolder(const self &other) </pre> <p>Copy constructor. </p> <p>The constructor takes a "deep" copy. The created object will be identical to, but independent from the original object. </p> <div class="sect3" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h4 class="title"><a id="idp1278640"></a>Parameters</h4> </div> </div> </div> <div class="sect4" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h5 class="title"><a id="idp1278832"></a>other</h5> </div> </div> </div> <p>The object to clone from. </p> </div> </div> </div> <div class="sect2" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h3 class="title"><a id="idp1251584"></a>Class</h3> </div> </div> </div> <p> <a class="link" href="ElementHolder.html" title="Chapter 23. ElementHolder"> ElementHolder</a> </p> </div> </div> </div> <div class="navfooter"> <hr /> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"><a accesskey="p" href="Element_wrappers.html">Prev</a> </td> <td width="20%" align="center"> </td> <td width="40%" align="right"> <a accesskey="n" href="stlElementHolderdstr_ElementHolder.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top">Chapter 22. ElementRef and ElementHolder Wappers </td> <td width="20%" align="center"> <a accesskey="h" href="index.html">Home</a> </td> <td width="40%" align="right" valign="top"> ~ElementHolder</td> </tr> </table> </div> </body> </html>