TreeNode.h

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/*
 
Copyright (c) 2004, Cornell University
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       documentation and/or other materials provided with the distribution.
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       this software without specific prior written permission.
 
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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*/


/////////////////////////////////////////////////////////////////////
///
/// TreeNode.h
///
/////////////////////////////////////////////////////////////////////

#ifndef __TREENODE_H
#define __TREENODE_H

#include "SeqBitmap.h"
#include "DatasetInfo.h"

/////////////////////////////////////////////////////////////////////
/// @ingroup AlgorithmicComponents
///
/// A class for representing nodes in the search tree.
/////////////////////////////////////////////////////////////////////
class TreeNode
{

public:
    /// Constructor
    TreeNode()
    {
        f1 = 0;
        f1Name = 0;
        f1Size = 0;
        sList = 0;
        sLength = 0;
        iList = 0;
        iLength = 0;
        iBitmap = 0;
        level = 0;
    }

    /// Destructor
    ~TreeNode()
    {}


    /// bitmaps of frequent-1 itemsets
    SeqBitmap** f1;

    /// names of the corresponding frequent-1 itemsets
    int* f1Name;

    /// number of frequent-1 itemsets
    int f1Size;

    /// list of s-extensions for this node
    int* sList;

    /// number of s-extensions
    int sLength;

    /// list of i-extensions for this node
    int* iList;

    /// number of i-extensions
    int iLength;

    /// the i-bitmap of the current node
    SeqBitmap* iBitmap;

    /// overall level of this node in the tree
    int level;

    /// the number of s-steps that have been taken to reach this node in the tree
    int sLevel;

    /// Whether or not compression will be performed at this node
    bool compress;

    /// Support count information for all of the frequent extensions from this node
    static CountInfo* countList;

};

#endif

---