xref: /aoo41x/main/package/source/xstor/owriteablestream.hxx (revision cdf0e10c)

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 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
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 * it under the terms of the GNU Lesser General Public License version 3
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 *
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 * 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).
 *
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 * <http://www.openoffice.org/license.html>
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#ifndef _WRITESTREAM_HXX_
#define _WRITESTREAM_HXX_

#include <com/sun/star/io/XInputStream.hpp>
#include <com/sun/star/io/XOutputStream.hpp>
#include <com/sun/star/io/XStream.hpp>
#include <com/sun/star/io/XSeekable.hpp>
#include <com/sun/star/io/XTruncate.hpp>
#include <com/sun/star/packages/XDataSinkEncrSupport.hpp>
#include <com/sun/star/packages/NoEncryptionException.hpp>
#include <com/sun/star/lang/XEventListener.hpp>
#include <com/sun/star/lang/XSingleServiceFactory.hpp>
#include <com/sun/star/lang/XComponent.hpp>
#include <com/sun/star/embed/XEncryptionProtectedSource2.hpp>
#include <com/sun/star/embed/XStorage.hpp>
#include <com/sun/star/embed/XRelationshipAccess.hpp>
#include <com/sun/star/embed/XExtendedStorageStream.hpp>
#include <com/sun/star/embed/XTransactedObject.hpp>
#include <com/sun/star/embed/XTransactionBroadcaster.hpp>
#include <com/sun/star/container/XNameContainer.hpp>
#include <com/sun/star/beans/StringPair.hpp>
#include <com/sun/star/logging/XSimpleLogRing.hpp>


#include <cppuhelper/implbase1.hxx>
#include <cppuhelper/weak.hxx>
#include <cppuhelper/interfacecontainer.h>

#include <comphelper/sequenceashashmap.hxx>

#include <list>

#include "ocompinstream.hxx"
#include "mutexholder.hxx"


struct PreCreationStruct
{
	SotMutexHolderRef m_rMutexRef;

	PreCreationStruct()
	: m_rMutexRef( new SotMutexHolder )
	{}

};

namespace cppu {
	class OTypeCollection;
}

namespace package {
    void StaticAddLog( const ::rtl::OUString& aMessage );
    bool PackageEncryptionDatasEqual( const ::comphelper::SequenceAsHashMap& aHash1, const ::comphelper::SequenceAsHashMap& aHash2 );
}

struct WSInternalData_Impl
{
	SotMutexHolderRef m_rSharedMutexRef;
	::cppu::OTypeCollection* m_pTypeCollection;
	::cppu::OMultiTypeInterfaceContainerHelper m_aListenersContainer; // list of listeners
	sal_Int32 m_nStorageType;

	// the mutex reference MUST NOT be empty
	WSInternalData_Impl( const SotMutexHolderRef rMutexRef, sal_Int32 nStorageType )
	: m_rSharedMutexRef( rMutexRef )
	, m_pTypeCollection( NULL )
	, m_aListenersContainer( rMutexRef->GetMutex() )
	, m_nStorageType( nStorageType )
	{}
};

typedef ::std::list< OInputCompStream* > InputStreamsList_Impl;

struct OStorage_Impl;
class OWriteStream;

struct OWriteStream_Impl : public PreCreationStruct
{
	friend struct OStorage_Impl;
	friend class OWriteStream;
	friend class OInputCompStream;

	OWriteStream*	m_pAntiImpl;
	::rtl::OUString m_aTempURL;

	::com::sun::star::uno::Reference< ::com::sun::star::io::XStream > m_xCacheStream;
	::com::sun::star::uno::Reference< ::com::sun::star::io::XSeekable > m_xCacheSeek;

	InputStreamsList_Impl m_aInputStreamsList;

    sal_Bool                        m_bHasDataToFlush;    // only modified elements will be sent to the original content
    sal_Bool                        m_bFlushed;      // sending the streams is coordinated by the root storage of the package

	::com::sun::star::uno::Reference< ::com::sun::star::packages::XDataSinkEncrSupport > m_xPackageStream;
	::com::sun::star::uno::Reference< ::com::sun::star::logging::XSimpleLogRing >  m_xLogRing;

	::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory > m_xFactory;

	OStorage_Impl* m_pParent;

	::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue > m_aProps;

	sal_Bool m_bForceEncrypted;

	sal_Bool m_bUseCommonEncryption;
	sal_Bool m_bHasCachedEncryptionData;
    ::comphelper::SequenceAsHashMap m_aEncryptionData;

    sal_Bool m_bCompressedSetExplicit;

	::com::sun::star::uno::Reference< ::com::sun::star::lang::XSingleServiceFactory > m_xPackage;

	sal_Bool m_bHasInsertedStreamOptimization;

	sal_Int32 m_nStorageType;

	// Relations info related data, stored in *.rels file in OFOPXML format
	::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream > m_xOrigRelInfoStream;
	::com::sun::star::uno::Sequence< ::com::sun::star::uno::Sequence< ::com::sun::star::beans::StringPair > > m_aOrigRelInfo;
	sal_Bool m_bOrigRelInfoBroken;

	::com::sun::star::uno::Sequence< ::com::sun::star::uno::Sequence< ::com::sun::star::beans::StringPair > > m_aNewRelInfo;
	::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream > m_xNewRelInfoStream;
	sal_Int16 m_nRelInfoStatus;
    sal_Int32 m_nRelId;


private:
	::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory > GetServiceFactory();

    ::rtl::OUString GetFilledTempFileIfNo( const ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream >& xStream );
	::rtl::OUString FillTempGetFileName();
	::com::sun::star::uno::Reference< ::com::sun::star::io::XStream >		GetTempFileAsStream();
	::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream >	GetTempFileAsInputStream();

	::com::sun::star::uno::Reference< ::com::sun::star::io::XStream > GetStream_Impl( sal_Int32 nStreamMode,
																						sal_Bool bHierarchyAccess );

	::comphelper::SequenceAsHashMap GetCommonRootEncryptionData() throw ( ::com::sun::star::packages::NoEncryptionException );

	::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue > ReadPackageStreamProperties();
	::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue > InsertOwnProps(
							const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >& aProps,
							sal_Bool bUseCommonEncryption );

public:
	OWriteStream_Impl(
				OStorage_Impl* pParent,
				const ::com::sun::star::uno::Reference< ::com::sun::star::packages::XDataSinkEncrSupport >& xPackageStream,
				const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XSingleServiceFactory >& xPackage,
				const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& xFactory,
				sal_Bool bForceEncrypted,
				sal_Int32 nStorageType,
                sal_Bool bDefaultCompress,
				const ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream >& xRelInfoStream =
					::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream >() );

	~OWriteStream_Impl();

    void CleanCacheStream();

    void AddLog( const ::rtl::OUString& aMessage );

	sal_Bool UsesCommonEncryption_Impl() { return m_bUseCommonEncryption; }
	sal_Bool HasTempFile_Impl() { return ( m_aTempURL.getLength() != 0 ); }
	sal_Bool IsTransacted();

	sal_Bool HasWriteOwner_Impl() { return ( m_pAntiImpl != NULL ); }

	void InsertIntoPackageFolder(
			const ::rtl::OUString& aName,
			const ::com::sun::star::uno::Reference< ::com::sun::star::container::XNameContainer >& xParentPackageFolder );

	void SetToBeCommited() { m_bFlushed = sal_True; }

	sal_Bool HasCachedEncryptionData() { return m_bHasCachedEncryptionData; }
	::comphelper::SequenceAsHashMap& GetCachedEncryptionData() { return m_aEncryptionData; }

	sal_Bool IsModified() { return m_bHasDataToFlush || m_bFlushed; }

	sal_Bool IsEncrypted();
	void SetDecrypted();
	void SetEncrypted( const ::comphelper::SequenceAsHashMap& aEncryptionData );

	void DisposeWrappers();

	void InsertStreamDirectly(
			const ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream >& xInStream,
			const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >& aProps );

	void Commit();
	void Revert();

	void Free( sal_Bool bMust ); // allows to try to disconnect from the temporary stream
				 				// in case bMust is set to sal_True the method
								// will throw exception in case the file is still busy

	void SetModified(); // can be done only by parent storage after renaming

	::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue > GetStreamProperties();

	::com::sun::star::uno::Sequence< ::com::sun::star::uno::Sequence< ::com::sun::star::beans::StringPair > > GetAllRelationshipsIfAny();

	void CopyInternallyTo_Impl( const ::com::sun::star::uno::Reference< ::com::sun::star::io::XStream >& xDestStream,
								const ::comphelper::SequenceAsHashMap& aEncryptionData );
	void CopyInternallyTo_Impl( const ::com::sun::star::uno::Reference< ::com::sun::star::io::XStream >& xDestStream );

	::com::sun::star::uno::Reference< ::com::sun::star::io::XStream > GetStream(
						sal_Int32 nStreamMode,
						const ::comphelper::SequenceAsHashMap& aEncryptionData,
						sal_Bool bHierarchyAccess );

	::com::sun::star::uno::Reference< ::com::sun::star::io::XStream > GetStream(
						sal_Int32 nStreamMode,
						sal_Bool bHierarchyAccess );


	::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream > GetRawInStream();
	::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream > GetPlainRawInStream();

	void InputStreamDisposed( OInputCompStream* pStream );

	void CreateReadonlyCopyBasedOnData(
					const ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream >& xDataToCopy,
					const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >& aProps,
					sal_Bool bUseCommonEncryption,
					::com::sun::star::uno::Reference< ::com::sun::star::io::XStream >& xTargetStream );

	void GetCopyOfLastCommit( ::com::sun::star::uno::Reference< ::com::sun::star::io::XStream >& xTargetStream );
	void GetCopyOfLastCommit(
				  ::com::sun::star::uno::Reference< ::com::sun::star::io::XStream >& xTargetStream,
							const ::comphelper::SequenceAsHashMap& aEncryptionData );


	void CommitStreamRelInfo(
					const ::com::sun::star::uno::Reference< ::com::sun::star::embed::XStorage >& xRelStorage,
					const ::rtl::OUString& aOrigStreamName,
					const ::rtl::OUString& aNewStreamName );

	void ReadRelInfoIfNecessary();

    sal_Int32 GetNewRelId() { return m_nRelId ++; }
};

class OWriteStream : ::com::sun::star::lang::XTypeProvider
			, public ::com::sun::star::io::XInputStream
			, public ::com::sun::star::io::XOutputStream
			, public ::com::sun::star::embed::XExtendedStorageStream
			, public ::com::sun::star::io::XSeekable
			, public ::com::sun::star::io::XTruncate
			, public ::com::sun::star::embed::XEncryptionProtectedSource2
			, public ::com::sun::star::embed::XRelationshipAccess
			, public ::com::sun::star::embed::XTransactedObject
			, public ::com::sun::star::embed::XTransactionBroadcaster
			, public ::com::sun::star::beans::XPropertySet
			, public ::cppu::OWeakObject
{
	friend struct OWriteStream_Impl;

protected:
	::com::sun::star::uno::Reference < ::com::sun::star::io::XInputStream > m_xInStream;
	::com::sun::star::uno::Reference < ::com::sun::star::io::XOutputStream > m_xOutStream;
	::com::sun::star::uno::Reference < ::com::sun::star::io::XSeekable > m_xSeekable;

	OWriteStream_Impl* m_pImpl;
	WSInternalData_Impl* m_pData;

	sal_Bool m_bInStreamDisconnected;
	sal_Bool m_bInitOnDemand;
    sal_Int64 m_nInitPosition;

	sal_Bool m_bTransacted;

	OWriteStream( OWriteStream_Impl* pImpl, sal_Bool bTransacted );
	OWriteStream( OWriteStream_Impl* pImpl, ::com::sun::star::uno::Reference< ::com::sun::star::io::XStream > xStream, sal_Bool bTransacted );

	void CloseOutput_Impl();

	void CopyToStreamInternally_Impl( const ::com::sun::star::uno::Reference< ::com::sun::star::io::XStream >& xStream );

	void ModifyParentUnlockMutex_Impl( ::osl::ResettableMutexGuard& aGuard );

	void BroadcastTransaction( sal_Int8 nMessage );

public:

	virtual ~OWriteStream();

	void CheckInitOnDemand();
    void DeInit();

	// XInterface
	virtual ::com::sun::star::uno::Any SAL_CALL queryInterface( const ::com::sun::star::uno::Type& rType )
		throw( ::com::sun::star::uno::RuntimeException );
	virtual void SAL_CALL acquire() throw();
	virtual void SAL_CALL release() throw();

	//	XTypeProvider
	virtual ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Type > SAL_CALL getTypes()
		throw( ::com::sun::star::uno::RuntimeException );
	virtual ::com::sun::star::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId()
		throw( ::com::sun::star::uno::RuntimeException );

	// XInputStream
    virtual sal_Int32 SAL_CALL readBytes( ::com::sun::star::uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
		throw(::com::sun::star::io::NotConnectedException, ::com::sun::star::io::BufferSizeExceededException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
    virtual sal_Int32 SAL_CALL readSomeBytes( ::com::sun::star::uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead ) throw(::com::sun::star::io::NotConnectedException, ::com::sun::star::io::BufferSizeExceededException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL skipBytes( sal_Int32 nBytesToSkip )
		throw(::com::sun::star::io::NotConnectedException, ::com::sun::star::io::BufferSizeExceededException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
    virtual sal_Int32 SAL_CALL available(  )
		throw(::com::sun::star::io::NotConnectedException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL closeInput(  )
		throw(::com::sun::star::io::NotConnectedException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);

	// XOutputStream
    virtual void SAL_CALL writeBytes( const ::com::sun::star::uno::Sequence< sal_Int8 >& aData ) throw (::com::sun::star::io::NotConnectedException, ::com::sun::star::io::BufferSizeExceededException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL flush(  ) throw (::com::sun::star::io::NotConnectedException, ::com::sun::star::io::BufferSizeExceededException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL closeOutput(  ) throw (::com::sun::star::io::NotConnectedException, ::com::sun::star::io::BufferSizeExceededException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);

	//XSeekable
    virtual void SAL_CALL seek( sal_Int64 location ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
    virtual sal_Int64 SAL_CALL getPosition() throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
    virtual sal_Int64 SAL_CALL getLength() throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);

	//XStream
    virtual ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream > SAL_CALL getInputStream(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::uno::Reference< ::com::sun::star::io::XOutputStream > SAL_CALL getOutputStream(  ) throw (::com::sun::star::uno::RuntimeException);

	// XTruncate
    virtual void SAL_CALL truncate() throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);

	//XComponent
    virtual void SAL_CALL dispose() throw (::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL addEventListener( const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XEventListener >& xListener ) throw (::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL removeEventListener( const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XEventListener >& aListener ) throw (::com::sun::star::uno::RuntimeException);

	//XEncryptionProtectedSource
    virtual void SAL_CALL setEncryptionPassword( const ::rtl::OUString& aPass )
		throw ( ::com::sun::star::uno::RuntimeException,
				::com::sun::star::io::IOException );
    virtual void SAL_CALL removeEncryption()
		throw ( ::com::sun::star::uno::RuntimeException,
				::com::sun::star::io::IOException );

	//XEncryptionProtectedSource2
    virtual void SAL_CALL setEncryptionData( const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::NamedValue >& aEncryptionData ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);

	//XRelationshipAccess
    virtual ::sal_Bool SAL_CALL hasByID( const ::rtl::OUString& sID ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
    virtual ::rtl::OUString SAL_CALL getTargetByID( const ::rtl::OUString& sID ) throw (::com::sun::star::container::NoSuchElementException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
    virtual ::rtl::OUString SAL_CALL getTypeByID( const ::rtl::OUString& sID ) throw (::com::sun::star::container::NoSuchElementException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::uno::Sequence< ::com::sun::star::beans::StringPair > SAL_CALL getRelationshipByID( const ::rtl::OUString& sID ) throw (::com::sun::star::container::NoSuchElementException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Sequence< ::com::sun::star::beans::StringPair > > SAL_CALL getRelationshipsByType( const ::rtl::OUString& sType ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Sequence< ::com::sun::star::beans::StringPair > > SAL_CALL getAllRelationships(  ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL insertRelationshipByID( const ::rtl::OUString& sID, const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::StringPair >& aEntry, ::sal_Bool bReplace ) throw (::com::sun::star::container::ElementExistException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL removeRelationshipByID( const ::rtl::OUString& sID ) throw (::com::sun::star::container::NoSuchElementException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL insertRelationships( const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Sequence< ::com::sun::star::beans::StringPair > >& aEntries, ::sal_Bool bReplace ) throw (::com::sun::star::container::ElementExistException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL clearRelationships(  ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);

	//XPropertySet
    virtual ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySetInfo > SAL_CALL getPropertySetInfo() throw ( ::com::sun::star::uno::RuntimeException );
    virtual void SAL_CALL setPropertyValue( const ::rtl::OUString& aPropertyName, const ::com::sun::star::uno::Any& aValue ) throw ( ::com::sun::star::beans::UnknownPropertyException, ::com::sun::star::beans::PropertyVetoException, ::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::lang::WrappedTargetException, ::com::sun::star::uno::RuntimeException );
    virtual ::com::sun::star::uno::Any SAL_CALL getPropertyValue( const ::rtl::OUString& PropertyName ) throw ( ::com::sun::star::beans::UnknownPropertyException, ::com::sun::star::lang::WrappedTargetException, ::com::sun::star::uno::RuntimeException );
    virtual void SAL_CALL addPropertyChangeListener( const ::rtl::OUString& aPropertyName, const ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertyChangeListener >& xListener ) throw ( ::com::sun::star::beans::UnknownPropertyException, ::com::sun::star::lang::WrappedTargetException, ::com::sun::star::uno::RuntimeException );
    virtual void SAL_CALL removePropertyChangeListener( const ::rtl::OUString& aPropertyName, const ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertyChangeListener >& aListener ) throw ( ::com::sun::star::beans::UnknownPropertyException, ::com::sun::star::lang::WrappedTargetException, ::com::sun::star::uno::RuntimeException );
    virtual void SAL_CALL addVetoableChangeListener( const ::rtl::OUString& PropertyName, const ::com::sun::star::uno::Reference< ::com::sun::star::beans::XVetoableChangeListener >& aListener ) throw ( ::com::sun::star::beans::UnknownPropertyException, ::com::sun::star::lang::WrappedTargetException, ::com::sun::star::uno::RuntimeException );
    virtual void SAL_CALL removeVetoableChangeListener( const ::rtl::OUString& PropertyName, const ::com::sun::star::uno::Reference< ::com::sun::star::beans::XVetoableChangeListener >& aListener ) throw ( ::com::sun::star::beans::UnknownPropertyException, ::com::sun::star::lang::WrappedTargetException, ::com::sun::star::uno::RuntimeException );

	// XTransactedObject
    virtual void SAL_CALL commit()
		throw ( ::com::sun::star::io::IOException,
				::com::sun::star::embed::StorageWrappedTargetException,
				::com::sun::star::uno::RuntimeException );
    virtual void SAL_CALL revert()
		throw ( ::com::sun::star::io::IOException,
				::com::sun::star::embed::StorageWrappedTargetException,
				::com::sun::star::uno::RuntimeException );

	// XTransactionBroadcaster
    virtual void SAL_CALL addTransactionListener(
			const ::com::sun::star::uno::Reference< ::com::sun::star::embed::XTransactionListener >& aListener )
		throw ( ::com::sun::star::uno::RuntimeException );
    virtual void SAL_CALL removeTransactionListener(
			const ::com::sun::star::uno::Reference< ::com::sun::star::embed::XTransactionListener >& aListener )
		throw ( ::com::sun::star::uno::RuntimeException );

};

#endif