Drizzled Public API Documentation

transaction_context.h

00001 /* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
00002  *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
00003  *
00004  *  Copyright (C) 2008 Sun Microsystems, Inc.
00005  *
00006  *  This program is free software; you can redistribute it and/or modify
00007  *  it under the terms of the GNU General Public License as published by
00008  *  the Free Software Foundation; version 2 of the License.
00009  *
00010  *  This program is distributed in the hope that it will be useful,
00011  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013  *  GNU General Public License for more details.
00014  *
00015  *  You should have received a copy of the GNU General Public License
00016  *  along with this program; if not, write to the Free Software
00017  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00018  */
00019 
00020 #pragma once
00021 
00022 #include <vector>
00023 
00024 namespace drizzled
00025 {
00026 class ResourceContext;
00027 
00028 class TransactionContext
00029 {
00030 public:
00031   TransactionContext() :
00032     no_2pc(false),
00033     resource_contexts(),
00034     modified_non_trans_data(false)
00035   {}
00036 
00037   void reset() { no_2pc= false; modified_non_trans_data= false; resource_contexts.clear();}
00038 
00039   typedef std::vector<ResourceContext *> ResourceContexts;
00040 
00041   void setResourceContexts(ResourceContexts &new_contexts)
00042   {
00043     resource_contexts.assign(new_contexts.begin(), new_contexts.end());
00044   }
00045 
00046   ResourceContexts &getResourceContexts()
00047   {
00048     return resource_contexts;
00049   }
00051   void registerResource(ResourceContext *resource)
00052   {
00053     resource_contexts.push_back(resource);
00054   }
00055 
00060   void markModifiedNonTransData()
00061   {
00062     modified_non_trans_data= true;
00063   }
00064 
00069   bool hasModifiedNonTransData() const
00070   {
00071     return modified_non_trans_data;
00072   }
00073 
00074   /* true is not all entries in the resource contexts support 2pc */
00075   bool no_2pc;
00076 private:
00078   ResourceContexts resource_contexts;
00080   bool modified_non_trans_data;
00081 };
00082 
00083 } /* namespace drizzled */
00084