| [190] | 1 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
|
|---|
| 2 | <!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/sql/qsqldriverplugin.cpp:45 -->
|
|---|
| 3 | <html>
|
|---|
| 4 | <head>
|
|---|
| 5 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
|
|---|
| 6 | <title>QSqlDriverPlugin Class</title>
|
|---|
| 7 | <style type="text/css"><!--
|
|---|
| 8 | fn { margin-left: 1cm; text-indent: -1cm; }
|
|---|
| 9 | a:link { color: #004faf; text-decoration: none }
|
|---|
| 10 | a:visited { color: #672967; text-decoration: none }
|
|---|
| 11 | body { background: #ffffff; color: black; }
|
|---|
| 12 | --></style>
|
|---|
| 13 | </head>
|
|---|
| 14 | <body>
|
|---|
| 15 |
|
|---|
| 16 | <table border="0" cellpadding="0" cellspacing="0" width="100%">
|
|---|
| 17 | <tr bgcolor="#E5E5E5">
|
|---|
| 18 | <td valign=center>
|
|---|
| 19 | <a href="index.html">
|
|---|
| 20 | <font color="#004faf">Home</font></a>
|
|---|
| 21 | | <a href="classes.html">
|
|---|
| 22 | <font color="#004faf">All Classes</font></a>
|
|---|
| 23 | | <a href="mainclasses.html">
|
|---|
| 24 | <font color="#004faf">Main Classes</font></a>
|
|---|
| 25 | | <a href="annotated.html">
|
|---|
| 26 | <font color="#004faf">Annotated</font></a>
|
|---|
| 27 | | <a href="groups.html">
|
|---|
| 28 | <font color="#004faf">Grouped Classes</font></a>
|
|---|
| 29 | | <a href="functions.html">
|
|---|
| 30 | <font color="#004faf">Functions</font></a>
|
|---|
| 31 | </td>
|
|---|
| 32 | <td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QSqlDriverPlugin Class Reference</h1>
|
|---|
| 33 |
|
|---|
| 34 | <p>The QSqlDriverPlugin class provides an abstract base for custom QSqlDriver plugins.
|
|---|
| 35 | <a href="#details">More...</a>
|
|---|
| 36 | <p><tt>#include <<a href="qsqldriverplugin-h.html">qsqldriverplugin.h</a>></tt>
|
|---|
| 37 | <p><a href="qsqldriverplugin-members.html">List of all member functions.</a>
|
|---|
| 38 | <h2>Public Members</h2>
|
|---|
| 39 | <ul>
|
|---|
| 40 | <li class=fn><a href="#QSqlDriverPlugin"><b>QSqlDriverPlugin</b></a> ()</li>
|
|---|
| 41 | <li class=fn><a href="#~QSqlDriverPlugin"><b>~QSqlDriverPlugin</b></a> ()</li>
|
|---|
| 42 | <li class=fn>virtual QStringList <a href="#keys"><b>keys</b></a> () const = 0</li>
|
|---|
| 43 | <li class=fn>virtual QSqlDriver * <a href="#create"><b>create</b></a> ( const QString & key ) = 0</li>
|
|---|
| 44 | </ul>
|
|---|
| 45 | <hr><a name="details"></a><h2>Detailed Description</h2>
|
|---|
| 46 |
|
|---|
| 47 |
|
|---|
| 48 | The QSqlDriverPlugin class provides an abstract base for custom <a href="qsqldriver.html">QSqlDriver</a> plugins.
|
|---|
| 49 | <p>
|
|---|
| 50 |
|
|---|
| 51 | <p> The SQL driver plugin is a simple plugin interface that makes it
|
|---|
| 52 | easy to create your own SQL driver plugins that can be loaded
|
|---|
| 53 | dynamically by Qt.
|
|---|
| 54 | <p> Writing a SQL plugin is achieved by subclassing this base class,
|
|---|
| 55 | reimplementing the pure virtual functions <a href="#keys">keys</a>() and <a href="#create">create</a>(), and
|
|---|
| 56 | exporting the class with the <tt>Q_EXPORT_PLUGIN</tt> macro. See the SQL
|
|---|
| 57 | plugins that come with Qt for example implementations (in the
|
|---|
| 58 | <tt>plugins/src/sqldrivers</tt> subdirectory of the source
|
|---|
| 59 | distribution). Read the <a href="plugins-howto.html">plugins
|
|---|
| 60 | documentation</a> for more information on plugins.
|
|---|
| 61 | <p>See also <a href="plugins.html">Plugins</a>.
|
|---|
| 62 |
|
|---|
| 63 | <hr><h2>Member Function Documentation</h2>
|
|---|
| 64 | <h3 class=fn><a name="QSqlDriverPlugin"></a>QSqlDriverPlugin::QSqlDriverPlugin ()
|
|---|
| 65 | </h3>
|
|---|
| 66 | Constructs a SQL driver plugin. This is invoked automatically by
|
|---|
| 67 | the <tt>Q_EXPORT_PLUGIN</tt> macro.
|
|---|
| 68 |
|
|---|
| 69 | <h3 class=fn><a name="~QSqlDriverPlugin"></a>QSqlDriverPlugin::~QSqlDriverPlugin ()
|
|---|
| 70 | </h3>
|
|---|
| 71 | Destroys the SQL driver plugin.
|
|---|
| 72 | <p> You never have to call this explicitly. Qt destroys a plugin
|
|---|
| 73 | automatically when it is no longer used.
|
|---|
| 74 |
|
|---|
| 75 | <h3 class=fn><a href="qsqldriver.html">QSqlDriver</a> * <a name="create"></a>QSqlDriverPlugin::create ( const <a href="qstring.html">QString</a> & key )<tt> [pure virtual]</tt>
|
|---|
| 76 | </h3>
|
|---|
| 77 |
|
|---|
| 78 | <p> Creates and returns a <a href="qsqldriver.html">QSqlDriver</a> object for the driver key <em>key</em>.
|
|---|
| 79 | The driver key is usually the class name of the required driver.
|
|---|
| 80 | <p> <p>See also <a href="#keys">keys</a>().
|
|---|
| 81 |
|
|---|
| 82 | <h3 class=fn><a href="qstringlist.html">QStringList</a> <a name="keys"></a>QSqlDriverPlugin::keys () const<tt> [pure virtual]</tt>
|
|---|
| 83 | </h3>
|
|---|
| 84 |
|
|---|
| 85 | <p> Returns the list of drivers (keys) this plugin supports.
|
|---|
| 86 | <p> These keys are usually the class names of the custom drivers that
|
|---|
| 87 | are implemented in the plugin.
|
|---|
| 88 | <p> <p>See also <a href="#create">create</a>().
|
|---|
| 89 |
|
|---|
| 90 | <!-- eof -->
|
|---|
| 91 | <hr><p>
|
|---|
| 92 | This file is part of the <a href="index.html">Qt toolkit</a>.
|
|---|
| 93 | Copyright © 1995-2007
|
|---|
| 94 | <a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
|
|---|
| 95 | <table width=100% cellspacing=0 border=0><tr>
|
|---|
| 96 | <td>Copyright © 2007
|
|---|
| 97 | <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
|
|---|
| 98 | <td align=right><div align=right>Qt 3.3.8</div>
|
|---|
| 99 | </table></div></address></body>
|
|---|
| 100 | </html>
|
|---|
