connectivity/source/drivers/firebird/Clob.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #pragma once
  11
  12 #include "Blob.hxx"
  13
  14 #include <cppuhelper/compbase.hxx>
  15
  16 #include <com/sun/star/io/XInputStream.hpp>
  17 #include <com/sun/star/sdbc/XClob.hpp>
  18 #include <rtl/ref.hxx>
  19
  20 namespace connectivity::firebird
  21     {
  22         typedef ::cppu::WeakComponentImplHelper< css::sdbc::XClob >
  23             Clob_BASE;
  24
  25         class Clob :
  26             public Clob_BASE
  27         {
  28         protected:
  29             ::osl::Mutex                    m_aMutex;
  30
  31             /*
  32              * In Firebird Clob (textual Blob) is a subtype of blob,
  33              * hence we store the data in a Blob, and the Clob class is
  34              * a wrapper around that.
  35              */
  36             rtl::Reference<connectivity::firebird::Blob> m_aBlob;
  37
  38             sal_Int64 m_nCharCount;
  39
  40         public:
  41             Clob(isc_db_handle* pDatabaseHandle,
  42                  isc_tr_handle* pTransactionHandle,
  43                  ISC_QUAD const & aBlobID);
  44
  45             // ---- XClob ----------------------------------------------------
  46             virtual sal_Int64 SAL_CALL
  47                 length() override;
  48             virtual OUString SAL_CALL
  49                 getSubString(sal_Int64 aPosition, sal_Int32 aLength) override;
  50             virtual css::uno::Reference< css::io::XInputStream > SAL_CALL
  51                 getCharacterStream() override;
  52             virtual sal_Int64 SAL_CALL
  53                 position(const OUString& rPattern,
  54                          sal_Int32 aStart) override;
  55             virtual sal_Int64 SAL_CALL
  56                 positionOfClob(const ::css::uno::Reference< ::css::sdbc::XClob >& rPattern,
  57                                sal_Int64 aStart) override;
  58             // ---- OComponentHelper ------------------------------------------
  59             virtual void SAL_CALL disposing() override;
  60         };
  61
  62 }
  63
  64 /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */