Fennel: /home/pub/open/dev/fennel/common/DataVisitor.h Source File

00001 /*
00002 // $Id: //open/dev/fennel/common/DataVisitor.h#11 $
00003 // Fennel is a library of data storage and processing components.
00004 // Copyright (C) 2005-2009 The Eigenbase Project
00005 // Copyright (C) 2003-2009 SQLstream, Inc.
00006 // Copyright (C) 2005-2009 LucidEra, Inc.
00007 // Portions Copyright (C) 1999-2009 John V. Sichi
00008 //
00009 // This program is free software; you can redistribute it and/or modify it
00010 // under the terms of the GNU General Public License as published by the Free
00011 // Software Foundation; either version 2 of the License, or (at your option)
00012 // any later version approved by The Eigenbase Project.
00013 //
00014 // This program is distributed in the hope that it will be useful,
00015 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00016 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00017 // GNU General Public License for more details.
00018 //
00019 // You should have received a copy of the GNU General Public License
00020 // along with this program; if not, write to the Free Software
00021 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00022 */
00023 
00024 #ifndef Fennel_DataVisitor_Included
00025 #define Fennel_DataVisitor_Included
00026 
00027 FENNEL_BEGIN_NAMESPACE
00028 
00036 class FENNEL_COMMON_EXPORT DataVisitor
00037 {
00038 public:
00039     virtual ~DataVisitor();
00040     virtual void preVisitDocument(std::string) = 0;
00041     virtual void postVisitDocument() = 0;
00042     virtual void preVisitTable(std::string title) = 0;
00043     virtual void postVisitTable() = 0;
00044     virtual void preVisitRow() = 0;
00045     virtual void postVisitRow() = 0;
00046     virtual void visitAttribute(std::string) = 0;
00047     virtual void visitString(std::string) = 0;
00048     virtual void visitChars(char const *, TupleStorageByteLength nChars) = 0;
00049     virtual void visitUnicodeChars(Ucs2ConstBuffer, uint nChars) = 0;
00050     virtual void visitUnsignedInt(uint64_t) = 0;
00051     virtual void visitSignedInt(int64_t) = 0;
00052     virtual void visitDouble(double) = 0;
00053     virtual void visitFloat(float) = 0;
00054     virtual void visitBoolean(bool) = 0;
00055     virtual void visitPageId(PageId) = 0;
00056     virtual void visitPageOwnerId(PageOwnerId) = 0;
00057     virtual void visitSegByteId(SegByteId) = 0;
00058     virtual void visitFormatted(char const *) = 0;
00059     virtual void visitBytes(void const *v,TupleStorageByteLength iBytes) = 0;
00060 };
00061 
00062 FENNEL_END_NAMESPACE
00063 
00064 #endif
00065 
00066 // End DataVisitor.h