xref: /aoo41x/main/udkapi/com/sun/star/io/XMarkableStream.idl (revision 408a4873)

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 * Licensed to the Apache Software Foundation (ASF) under one
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 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
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 * with the License.  You may obtain a copy of the License at
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 * Unless required by applicable law or agreed to in writing,
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 * KIND, either express or implied.  See the License for the
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#ifndef __com_sun_star_io_XMarkableStream_idl__
#define __com_sun_star_io_XMarkableStream_idl__

#ifndef __com_sun_star_uno_XInterface_idl__
#include <com/sun/star/uno/XInterface.idl>
#endif

#ifndef __com_sun_star_io_IOException_idl__
#include <com/sun/star/io/IOException.idl>
#endif

#ifndef __com_sun_star_lang_IllegalArgumentException_idl__
#include <com/sun/star/lang/IllegalArgumentException.idl>
#endif


//=============================================================================

module com {  module sun {  module star {  module io {

//=============================================================================

// DocMerge from xml: interface com::sun::star::io::XMarkableStream
/** makes it possible to set and remove seekable marks to a stream.
 */
published interface XMarkableStream: com::sun::star::uno::XInterface
{
	//-------------------------------------------------------------------------

	// DocMerge from xml: method com::sun::star::io::XMarkableStream::createMark
	/** creates a mark of the current postion and returns an identifier to it.
	 */
	long createMark()
			raises( com::sun::star::io::IOException );

	//-------------------------------------------------------------------------

	// DocMerge from xml: method com::sun::star::io::XMarkableStream::deleteMark
	/** deletes the mark that you previously created with
		<member>XMarkableStream::createMark</member>.

		<p>It is an error to delete a mark if other marks after this
		exist.  In this case, for reasons of robustness, the
		implementation must delete this mark and all others after
		this mark.  </p>
	 */
	void deleteMark( [in] long Mark )
			raises( com::sun::star::io::IOException,
					com::sun::star::lang::IllegalArgumentException );

	//-------------------------------------------------------------------------

	// DocMerge from xml: method com::sun::star::io::XMarkableStream::jumpToMark
	/** jumps to a previously created mark.
	 */
	void jumpToMark( [in] long nMark )
			raises( com::sun::star::io::IOException,
					com::sun::star::lang::IllegalArgumentException );

	//-------------------------------------------------------------------------

	/** jumps to the furthest position of the stream.
		<p> In the inputstream case, a subsequent read call returns
		data, that was never read or skipped over before. In the
		outputstream case, a subsequent write call will add
		new data at the end of the stream without overwriting existing data.
	 */
	void jumpToFurthest()
			raises( com::sun::star::io::IOException );

	//-------------------------------------------------------------------------

	// DocMerge from idl: method com::sun::star::io::XMarkableStream::offsetToMark
	/** @returns
			the offset from the current stream position to the
			mark ("current position" - "mark position").

		@param nMark
			identifies the mark which is used as a base
			to calculate the offset of the current position.

		@throws IllegalArgumentException
			if the mark does not exist or is deleted.

		@throws IOException
			if an I/O error has occurred.
	 */
	long offsetToMark( [in] long nMark )
			raises( com::sun::star::io::IOException,
					com::sun::star::lang::IllegalArgumentException );

};

//=============================================================================

}; }; }; };

/*=============================================================================

=============================================================================*/
#endif