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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef __com_sun_star_beans_Optional_idl__
#define __com_sun_star_beans_Optional_idl__
module com { module sun { module star { module beans {
/**
An optional value of a given type.
<p>This structure is used as the type of interface attributes corresponding
to instances of <type scopye="com::sun::star::beans">Property</type> that
have the <const
scope="com::sun::star::beans">PropertyAttribute::MAYBEVOID</const>. It might
also be useful in other situations, for example as the return type of an
interface method.</p>
*/
struct Optional<T> {
/**
Marks this structure instance as having an actual value.
*/
boolean IsPresent;
/**
The actual value of this structure instance.
<p>If no actual value is present, a producer of such a structure instance
should leave this member defaulted, and a consumer of such a structure
instance should ignore the specific value stored in this member.</p>
*/
T Value;
};
}; }; }; };
#endif
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