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79 lines
3.1 KiB
79 lines
3.1 KiB
'\" t
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.TH QSqlDriverPlugin 3qt "2 February 2007" "Trolltech AS" \" -*- nroff -*-
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.\" Copyright 1992-2007 Trolltech ASA. All rights reserved. See the
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.\" license file included in the distribution for a complete license
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.\" statement.
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.\"
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.ad l
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.nh
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.SH NAME
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QSqlDriverPlugin \- Abstract base for custom QSqlDriver plugins
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.SH SYNOPSIS
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\fC#include <qsqldriverplugin.h>\fR
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.PP
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.SS "Public Members"
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.in +1c
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.ti -1c
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.BI "\fBQSqlDriverPlugin\fR ()"
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.br
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.ti -1c
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.BI "\fB~QSqlDriverPlugin\fR ()"
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.br
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.ti -1c
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.BI "virtual QStringList \fBkeys\fR () const = 0"
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.br
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.ti -1c
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.BI "virtual QSqlDriver * \fBcreate\fR ( const QString & key ) = 0"
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.br
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.in -1c
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.SH DESCRIPTION
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The QSqlDriverPlugin class provides an abstract base for custom QSqlDriver plugins.
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.PP
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The SQL driver plugin is a simple plugin interface that makes it easy to create your own SQL driver plugins that can be loaded dynamically by Qt.
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.PP
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Writing a SQL plugin is achieved by subclassing this base class, reimplementing the pure virtual functions keys() and create(), and exporting the class with the \fCQ_EXPORT_PLUGIN\fR macro. See the SQL plugins that come with Qt for example implementations (in the \fCplugins/src/sqldrivers\fR subdirectory of the source distribution). Read the plugins documentation for more information on plugins.
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.PP
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See also Plugins.
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.SH MEMBER FUNCTION DOCUMENTATION
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.SH "QSqlDriverPlugin::QSqlDriverPlugin ()"
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Constructs a SQL driver plugin. This is invoked automatically by the \fCQ_EXPORT_PLUGIN\fR macro.
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.SH "QSqlDriverPlugin::~QSqlDriverPlugin ()"
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Destroys the SQL driver plugin.
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.PP
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You never have to call this explicitly. Qt destroys a plugin automatically when it is no longer used.
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.SH "QSqlDriver * QSqlDriverPlugin::create ( const QString & key )\fC [pure virtual]\fR"
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Creates and returns a QSqlDriver object for the driver key \fIkey\fR. The driver key is usually the class name of the required driver.
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.PP
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See also keys().
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.SH "QStringList QSqlDriverPlugin::keys () const\fC [pure virtual]\fR"
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Returns the list of drivers (keys) this plugin supports.
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.PP
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These keys are usually the class names of the custom drivers that are implemented in the plugin.
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.PP
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See also create().
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.SH "SEE ALSO"
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.BR http://doc.trolltech.com/qsqldriverplugin.html
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.BR http://www.trolltech.com/faq/tech.html
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.SH COPYRIGHT
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Copyright 1992-2007 Trolltech ASA, http://www.trolltech.com. See the
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license file included in the distribution for a complete license
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statement.
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.SH AUTHOR
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Generated automatically from the source code.
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.SH BUGS
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If you find a bug in Qt, please report it as described in
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.BR http://doc.trolltech.com/bughowto.html .
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Good bug reports help us to help you. Thank you.
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.P
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The definitive Qt documentation is provided in HTML format; it is
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located at $QTDIR/doc/html and can be read using Qt Assistant or with
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a web browser. This man page is provided as a convenience for those
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users who prefer man pages, although this format is not officially
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supported by Trolltech.
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.P
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If you find errors in this manual page, please report them to
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.BR qt-bugs@trolltech.com .
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Please include the name of the manual page (qsqldriverplugin.3qt) and the Qt
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version (3.3.8).
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