REfs #4024 another checkpoint

MD tests pass thank god with latest nexus version

Code/Mantid/Framework/Kernel/CMakeLists.txt

@@ -74,6 +74,7 @@ set ( SRC_FILES
 	src/VMD.cpp
 	src/VectorHelper.cpp
 	src/VisibleWhenProperty.cpp
+	src/WriteBuffer.cpp
 )
 
 set ( SRC_UNITY_IGNORE_FILES src/Atom.cpp
@@ -182,11 +183,12 @@ set ( INC_FILES
 	inc/MantidKernel/V2D.h
 	inc/MantidKernel/V3D.h
 	inc/MantidKernel/VMD.h
+	inc/MantidKernel/ValidatorAnyList.h
+	inc/MantidKernel/ValidatorSignalChange.h
 	inc/MantidKernel/VectorHelper.h
 	inc/MantidKernel/VisibleWhenProperty.h
+	inc/MantidKernel/WriteBuffer.h
 	inc/MantidKernel/cow_ptr.h
-	inc/MantidKernel/ValidatorSignalChange.h	
-	inc/MantidKernel/ValidatorAnyList.h
 )
 
 set ( TEST_FILES
@@ -260,10 +262,11 @@ set ( TEST_FILES
 	test/V2DTest.h
 	test/V3DTest.h
 	test/VMDTest.h
+	test/ValidatorAnyListTest.h
 	test/ValidatorSignalChangeTest.h
 	test/VectorHelperTest.h
 	test/VisibleWhenPropertyTest.h
-	test/ValidatorAnyListTest.h
+	test/WriteBufferTest.h
 )
 
 if(UNITY_BUILD)

Code/Mantid/Framework/Kernel/inc/MantidKernel/WriteBuffer.h

@@ -0,0 +1,52 @@
+#ifndef MANTID_KERNEL_WRITEBUFFER_H_
+#define MANTID_KERNEL_WRITEBUFFER_H_
+
+#include "MantidKernel/System.h"
+
+
+namespace Mantid
+{
+namespace Kernel
+{
+
+  /** Replacement of the DiskMRU class that holds
+    a "to-write" buffer and a list of free space blocks
+    in the file to write.
+
+    For use in file-backed MDEventWorkspaces.
+    
+    @date 2011-11-17
+
+    Copyright © 2011 ISIS Rutherford Appleton Laboratory & NScD Oak Ridge National Laboratory
+
+    This file is part of Mantid.
+
+    Mantid is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    Mantid is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+    File change history is stored at: <https://svn.mantidproject.org/mantid/trunk/Code/Mantid>
+    Code Documentation is available at: <http://doxygen.mantidproject.org>
+  */
+  class DLLExport WriteBuffer 
+  {
+  public:
+    WriteBuffer();
+    virtual ~WriteBuffer();
+
+  };
+
+
+} // namespace Kernel
+} // namespace Mantid
+
+#endif  /* MANTID_KERNEL_WRITEBUFFER_H_ */

Code/Mantid/Framework/Kernel/src/WriteBuffer.cpp

@@ -0,0 +1,29 @@
+#include "MantidKernel/WriteBuffer.h"
+#include "MantidKernel/System.h"
+
+using namespace Mantid::Kernel;
+
+namespace Mantid
+{
+namespace Kernel
+{
+
+
+  //----------------------------------------------------------------------------------------------
+  /** Constructor
+   */
+  WriteBuffer::WriteBuffer()
+  {
+  }
+
+  //----------------------------------------------------------------------------------------------
+  /** Destructor
+   */
+  WriteBuffer::~WriteBuffer()
+  {
+  }
+
+
+
+} // namespace Mantid
+} // namespace Kernel

Code/Mantid/Framework/Kernel/test/WriteBufferTest.h

@@ -0,0 +1,32 @@
+#ifndef MANTID_KERNEL_WRITEBUFFERTEST_H_
+#define MANTID_KERNEL_WRITEBUFFERTEST_H_
+
+#include <cxxtest/TestSuite.h>
+#include "MantidKernel/Timer.h"
+#include "MantidKernel/System.h"
+#include <iostream>
+#include <iomanip>
+
+#include "MantidKernel/WriteBuffer.h"
+
+using namespace Mantid;
+using namespace Mantid::Kernel;
+
+class WriteBufferTest : public CxxTest::TestSuite
+{
+public:
+  // This pair of boilerplate methods prevent the suite being created statically
+  // This means the constructor isn't called when running other tests
+  static WriteBufferTest *createSuite() { return new WriteBufferTest(); }
+  static void destroySuite( WriteBufferTest *suite ) { delete suite; }
+
+
+  void test_Something()
+  {
+  }
+
+
+};
+
+
+#endif /* MANTID_KERNEL_WRITEBUFFERTEST_H_ */

Code/Mantid/Framework/MDEvents/src/MDBox.cpp

@@ -250,8 +250,8 @@ namespace MDEvents
       this->m_dataBusy = false;
       // If not using the MRU, then immediately save it back (if it changed)
       //    or clear memory if unchanged.
-      //if (!this->m_BoxController->useMRU())
-//        this->save();
+      if (!this->m_BoxController->useMRU())
+        this->save();
     }
   }