2 files changed, 11 insertions, 6 deletions
diff --git a/connectivity/source/drivers/firebird/Clob.cxx b/connectivity/source/drivers/firebird/Clob.cxx
index 65cd03e10942..83d95797d4d9 100644
--- a/connectivity/source/drivers/firebird/Clob.cxx
+++ b/connectivity/source/drivers/firebird/Clob.cxx
@@ -28,13 +28,14 @@ Clob::Clob(isc_db_handle* pDatabaseHandle,
            isc_tr_handle* pTransactionHandle,
            ISC_QUAD& aBlobID):
     Clob_BASE(m_aMutex),
-    m_aBlob(pDatabaseHandle, pTransactionHandle, aBlobID)
+    m_aBlob(new connectivity::firebird::Blob(pDatabaseHandle, pTransactionHandle, aBlobID))
 {
 }
 
 void SAL_CALL Clob::disposing()
 {
-    m_aBlob.disposing();
+    m_aBlob->dispose();
+    m_aBlob.clear();
     Clob_BASE::disposing();
 }
 
@@ -46,7 +47,7 @@ sal_Int64 SAL_CALL Clob::length()
 
     // read the entire blob
     // TODO FIXME better solution?
-    uno::Sequence < sal_Int8 > aEntireBlob = m_aBlob.getBytes( 1, m_aBlob.length());
+    uno::Sequence < sal_Int8 > aEntireBlob = m_aBlob->getBytes( 1, m_aBlob->length());
     OUString sEntireClob (  reinterpret_cast< sal_Char *>( aEntireBlob.getArray() ),
                             aEntireBlob.getLength(),
                             RTL_TEXTENCODING_UTF8 );
@@ -63,7 +64,7 @@ OUString SAL_CALL Clob::getSubString(sal_Int64 nPosition,
     // read the entire blob
     // TODO FIXME better solution?
     // TODO FIXME Assume indexing of nPosition starts at position 1.
-    uno::Sequence < sal_Int8 > aEntireBlob = m_aBlob.getBytes( 1, m_aBlob.length());
+    uno::Sequence < sal_Int8 > aEntireBlob = m_aBlob->getBytes( 1, m_aBlob->length());
     OUString sEntireClob (  reinterpret_cast< sal_Char *>( aEntireBlob.getArray() ),
                             aEntireBlob.getLength(),
                             RTL_TEXTENCODING_UTF8 );
@@ -77,7 +78,10 @@ OUString SAL_CALL Clob::getSubString(sal_Int64 nPosition,
 uno::Reference< XInputStream > SAL_CALL  Clob::getCharacterStream()
     throw(SQLException, RuntimeException, std::exception)
 {
-    return m_aBlob.getBinaryStream();
+    MutexGuard aGuard(m_aMutex);
+    checkDisposed(Clob_BASE::rBHelper.bDisposed);
+
+    return m_aBlob->getBinaryStream();
 }
 
 sal_Int64 SAL_CALL Clob::position(const OUString& /*rPattern*/,
diff --git a/connectivity/source/drivers/firebird/Clob.hxx b/connectivity/source/drivers/firebird/Clob.hxx
index bbe47f6b8966..dfa40dedd484 100644
--- a/connectivity/source/drivers/firebird/Clob.hxx
+++ b/connectivity/source/drivers/firebird/Clob.hxx
@@ -16,6 +16,7 @@
 
 #include <com/sun/star/io/XInputStream.hpp>
 #include <com/sun/star/sdbc/XClob.hpp>
+#include <rtl/ref.hxx>
 
 namespace connectivity
 {
@@ -35,7 +36,7 @@ namespace connectivity
              * hence we store the data in a Blob, and the Clob class is
              * a wrapper around that.
              */
-            connectivity::firebird::Blob     m_aBlob;
+            rtl::Reference<connectivity::firebird::Blob> m_aBlob;
 
         public:
             Clob(isc_db_handle* pDatabaseHandle,