00001 /*========================================================================== 00002 * Copyright (c) 2004 University of Massachusetts. 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 also available at 00007 * http://www.lemurproject.org/license.html 00008 * 00009 *========================================================================== 00010 */ 00011 00012 00013 // 00014 // FieldGreaterNode 00015 // 00016 // 13 April 2004 -- tds 00017 // 00018 00019 #ifndef INDRI_FIELDGREATERNODE_HPP 00020 #define INDRI_FIELDGREATERNODE_HPP 00021 00022 #include "indri/ListIteratorNode.hpp" 00023 namespace indri 00024 { 00025 namespace infnet 00026 { 00027 00028 class FieldGreaterNode : public ListIteratorNode { 00029 private: 00030 class FieldIteratorNode* _field; 00031 indri::utility::greedy_vector<indri::index::Extent> _extents; 00032 INT64 _constant; 00033 std::string _name; 00034 00035 public: 00036 FieldGreaterNode( const std::string& name, class FieldIteratorNode* iterator, INT64 constant ); 00037 void prepare( lemur::api::DOCID_T documentID ); 00038 indri::utility::greedy_vector<indri::index::Extent>& extents(); 00039 lemur::api::DOCID_T nextCandidateDocument(); 00040 void indexChanged( indri::index::Index& index ); 00041 const std::string& getName() const; 00042 void annotate( class Annotator& annotator, lemur::api::DOCID_T documentID, indri::index::Extent &extent ); 00043 }; 00044 } 00045 } 00046 00047 #endif // INDRI_FIELDGREATERNODE_HPP 00048
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