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ExtentParentNode.hpp

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00001 /*==========================================================================
00002  * Copyright (c) 2006 Carnegie Mellon University.  All Rights Reserved.
00003  *
00004  * Use of the Lemur Toolkit for Language Modeling and Information Retrieval
00005  * is subject to the terms of the software license set forth in the LICENSE
00006  * file included with this software (and below), and also available at
00007  * http://www.lemurproject.org/license.html
00008  *
00009  *==========================================================================
00010  */
00011 
00012 //
00013 // ExtentParentNode
00014 //
00015 // 31 Jan 2006 - pto
00016 //
00017 //
00018 // Checks to make sure the inner node has an extent that matches the extent
00019 // of a parent of nodes whose extents matching the outer extent
00020 //
00021 
00022 #ifndef INDRI_EXTENTPARENTNODE_HPP
00023 #define INDRI_EXTENTPARENTNODE_HPP
00024 
00025 #include "indri/ListIteratorNode.hpp"
00026 #include "indri/DocumentStructureHolderNode.hpp"
00027 #include "indri/greedy_vector"
00028 #include "indri/Extent.hpp"
00029 namespace indri
00030 {
00031   namespace infnet
00032   {
00033     
00034     class ExtentParentNode : public ListIteratorNode {
00035       ListIteratorNode* _inner;
00036       ListIteratorNode* _outer;
00037       DocumentStructureHolderNode & _docStructHolder;
00038       indri::utility::greedy_vector<indri::index::Extent> _extents;
00039       std::string _name;
00040 
00041 
00042       std::set<int> _ancestors;
00043       std::set<int> _leafs;
00044 
00045 
00046     public:
00047       ExtentParentNode( const std::string& name, 
00048                         ListIteratorNode* inner, 
00049                         ListIteratorNode* outer,
00050                         DocumentStructureHolderNode & documentStructureHolderNode  );
00051 
00052       void prepare( lemur::api::DOCID_T documentID );
00053       const indri::utility::greedy_vector<indri::index::Extent>& extents();
00054       lemur::api::DOCID_T nextCandidateDocument();
00055       void indexChanged( indri::index::Index& index );
00056 
00057       const std::string& getName() const;
00058       void annotate( class Annotator& annotator, lemur::api::DOCID_T documentID, indri::index::Extent &extent );
00059 
00060       const indri::utility::greedy_vector<indri::index::Extent>& matches( indri::index::Extent &extent );
00061     };
00062   }
00063 }
00064 
00065 #endif // INDRI_EXTENTPARENTNODE_HPP
00066 

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