/************************************************************** * * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the 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.

This structure is used as the type of interface attributes corresponding to instances of Property that have the PropertyAttribute::MAYBEVOID. It might also be useful in other situations, for example as the return type of an interface method.

*/ published struct Optional { /** Marks this structure instance as having an actual value. */ boolean IsPresent; /** The actual value of this structure instance.

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.

*/ T Value; }; }; }; }; }; #endif