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/*************************************************************************
*
* $RCSfile: ObjectInputStream.idl,v $
*
* $Revision: 1.7 $
*
* last change: $Author: mi $ $Date: 2002-12-11 13:36:03 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library 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 for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (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.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
#ifndef __com_sun_star_io_ObjectInputStream_idl__
#define __com_sun_star_io_ObjectInputStream_idl__
#ifndef __com_sun_star_io_XObjectInputStream_idl__
#include <com/sun/star/io/XObjectInputStream.idl>
#endif
#ifndef __com_sun_star_io_XActiveDataSink_idl__
#include <com/sun/star/io/XActiveDataSink.idl>
#endif
#ifndef __com_sun_star_io_XConnectable_idl__
#include <com/sun/star/io/XConnectable.idl>
#endif
#ifndef __com_sun_star_io_XMarkableStream_idl__
#include <com/sun/star/io/XMarkableStream.idl>
#endif
//=============================================================================
module com { module sun { module star { module io {
//=============================================================================
// DocMerge from xml: service com::sun::star::io::ObjectInputStream
/** is a stream which allows reading the data of persistent objects.
<p>Implementations of this service must fulfill the specifications of the
<type>DataInputStream</type> service. It must be chained to an
<type>XMarkableStream</type>. Therefore, it provides the
<type>XMarkableStream</type> interface, and delegates the calls to the
chained object. </p>
<p>The written objects are held until this instance is destroyed.
The references to the objects are read as four-byte integers.
Data format reads:</p>
<pre>
short InfoLength
long ObjectReference // 0 indicates no object
UTF ServiceName // length of 0 indicates this is only a reference
long ObjectLength // 0 if it is a reference or no object, otherwise the len of the object data
Object ObjectData // the data of the object
... // skipping additional data
</pre>
@guarantees
<ul>
<li>-thread safe</li>
<li>-allow buffer size is 2 ^ 31 -1</li>
<li>-maximum object reference identifier must be the number of objects. </li>
<li>-object reference identifier 0 indicates no object</li>
<li>-skip addition data</li>
<li>-set the stream position behind the object data</li>
</ul>
*/
service ObjectInputStream
{
/** allows to read the data from the stream.
*/
interface com::sun::star::io::XObjectInputStream;
/** allows to set the underlying inputstream */
interface com::sun::star::io::XActiveDataSink;
/** allows to navigate via a chain of streams */
interface com::sun::star::io::XConnectable;
/** allows to set marks within the stream. The implementation
may forward calls to this interface to a chained markablestream. */
interface com::sun::star::io::XMarkableStream;
};
//=============================================================================
}; }; }; };
/*=============================================================================
=============================================================================*/
#endif
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