drivers/firebird/Clob.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
 
#pragma once
 
#include "Blob.hxx"
 
#include <cppuhelper/compbase.hxx>
 
#include <com/sun/star/io/XInputStream.hpp>
#include <com/sun/star/sdbc/XClob.hpp>
#include <rtl/ref.hxx>
 
namespace connectivity::firebird
    {
        typedef ::cppu::WeakComponentImplHelper< css::sdbc::XClob >
            Clob_BASE;
 
        class Clob :
            public Clob_BASE
        {
        protected:
            ::osl::Mutex                    m_aMutex;
 
            /*
             * In Firebird Clob (textual Blob) is a subtype of blob,
             * hence we store the data in a Blob, and the Clob class is
             * a wrapper around that.
             */
            rtl::Reference<connectivity::firebird::Blob> m_aBlob;
 
            sal_Int64 m_nCharCount;
 
        public:
            Clob(isc_db_handle* pDatabaseHandle,
                 isc_tr_handle* pTransactionHandle,
                 ISC_QUAD const & aBlobID);
 
            // ---- XClob ----------------------------------------------------
            virtual sal_Int64 SAL_CALL
                length() override;
            virtual OUString SAL_CALL
                getSubString(sal_Int64 aPosition, sal_Int32 aLength) override;
            virtual css::uno::Reference< css::io::XInputStream > SAL_CALL
                getCharacterStream() override;
            virtual sal_Int64 SAL_CALL
                position(const OUString& rPattern,
                         sal_Int32 aStart) override;
            virtual sal_Int64 SAL_CALL
                positionOfClob(const ::css::uno::Reference< ::css::sdbc::XClob >& rPattern,
                               sal_Int64 aStart) override;
            // ---- OComponentHelper ------------------------------------------
            virtual void SAL_CALL disposing() override;
        };
 
}
 
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