PLearn 0.1
FilteredVMatrix.h
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00001 // -*- C++ -*-
00002 
00003 // FilteredVMatrix.h
00004 //
00005 // Copyright (C) 2003 Pascal Vincent
00006 //
00007 // Redistribution and use in source and binary forms, with or without
00008 // modification, are permitted provided that the following conditions are met:
00009 //
00010 //  1. Redistributions of source code must retain the above copyright
00011 //     notice, this list of conditions and the following disclaimer.
00012 //
00013 //  2. Redistributions in binary form must reproduce the above copyright
00014 //     notice, this list of conditions and the following disclaimer in the
00015 //     documentation and/or other materials provided with the distribution.
00016 //
00017 //  3. The name of the authors may not be used to endorse or promote
00018 //     products derived from this software without specific prior written
00019 //     permission.
00020 //
00021 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
00022 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00023 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
00024 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00025 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
00026 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00027 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00028 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00029 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00030 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00031 //
00032 // This file is part of the PLearn library. For more information on the PLearn
00033 // library, go to the PLearn Web site at www.plearn.org
00034 
00035 /* *******************************************************
00036  * $Id: FilteredVMatrix.h 9494 2008-10-01 21:09:26Z nouiz $
00037  ******************************************************* */
00038 
00039 // Authors: Pascal Vincent
00040 
00044 #ifndef FilteredVMatrix_INC
00045 #define FilteredVMatrix_INC
00046 
00047 #include "SourceVMatrix.h"
00048 #include "VMatLanguage.h"
00049 #include <plearn/io/IntVecFile.h>
00050 
00051 namespace PLearn {
00052 using namespace std;
00053 
00054 class FilteredVMatrix: public SourceVMatrix
00055 {
00056     typedef SourceVMatrix inherited;
00057 
00058 private:
00059 
00062     bool build_complete;
00063 
00064 protected:
00065 
00066     VMatLanguage program;
00067 
00070     IntVecFile indexes;
00071 
00073     TVec<int> mem_indices;
00074 
00075     bool allow_repeat_rows;
00076     string repeat_id_field_name; // 0, 1, ..., n-1; "" means no field is added
00077     string repeat_count_field_name; // n; "" means no field is added
00078     bool warn_no_metadatadir;
00081     void openIndex();
00082 
00084     void computeFilteredIndices();
00085 
00086 public:
00087 
00088     // ************************
00089     // * public build options *
00090     // ************************
00091 
00092     bool report_progress;
00093     string prg;  // program string in VPL language
00094 
00095     // ****************
00096     // * Constructors *
00097     // ****************
00098 
00100     FilteredVMatrix();
00101 
00103     FilteredVMatrix(VMat the_source, const string& program_string,
00104                     const PPath& the_metadatadir = "", bool the_report_progress = true,
00105                     bool allow_repeat_rows_= false, 
00106                     const string& repeat_id_field_name_= "",
00107                     const string& repeat_count_field_name_= "",
00108                     bool call_build_ = true);
00109 
00110     virtual void setMetaDataDir(const PPath& the_metadatadir);
00111 
00112 private:
00114     void build_();
00115 
00116 protected:
00118     static void declareOptions(OptionList& ol);
00119 
00121     virtual void getNewRow(int i, const Vec& v) const;
00122 
00123 public:
00124 
00125     // simply calls inherited::build() then build_()
00126     virtual void build();
00127 
00129     virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies);
00130 
00132     PLEARN_DECLARE_OBJECT(FilteredVMatrix);
00133 
00134 };
00135 
00136 DECLARE_OBJECT_PTR(FilteredVMatrix);
00137 
00138 } // end of namespace PLearn
00139 #endif
00140 
00141 
00142 /*
00143   Local Variables:
00144   mode:c++
00145   c-basic-offset:4
00146   c-file-style:"stroustrup"
00147   c-file-offsets:((innamespace . 0)(inline-open . 0))
00148   indent-tabs-mode:nil
00149   fill-column:79
00150   End:
00151 */
00152 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :
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