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annotate lucene/src/luan/modules/lucene/Lucene.luan @ 257:c5c60eca33dd
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git-svn-id: https://luan-java.googlecode.com/svn/trunk@258 21e917c8-12df-6dd8-5cb6-c86387c605b9
author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
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date | Tue, 28 Oct 2014 03:05:37 +0000 |
parents | ef39bc4d3f70 |
children | 9e0d4452e649 |
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1 import "Java" |
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2 import "luan.modules.lucene.LuceneIndex" |
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3 |
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4 |
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5 function Index(indexDir) |
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6 local index = LuceneIndex.new(indexDir).table() |
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7 |
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8 function index.save_document(doc) |
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9 index.Writer( function(writer) |
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10 writer.save_document(doc) |
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11 end ) |
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12 end |
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13 |
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14 function index.delete_documents(terms) |
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15 index.Writer( function(writer) |
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16 writer.delete_documents(terms) |
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17 end ) |
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18 end |
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19 |
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20 function index.get_first(query, sort) |
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21 return index.Searcher( function(searcher) |
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22 local results, _, total_hits = searcher.search(query,1,sort) |
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23 return results(), total_hits |
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24 end ) |
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25 end |
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26 |
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27 function index.get_document(query) |
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28 local doc, total_hits = index.get_first(query); |
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29 if total_hits > 1 then |
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30 error( "found " .. total_hits .. " documents" ) |
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31 end |
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32 return doc |
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33 end |
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34 |
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35 function index.count(query) |
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36 return index.Searcher( function(searcher) |
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37 local _, _, total_hits = searcher.search(query,0) |
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38 return total_hits |
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39 end ) |
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40 end |
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41 |
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42 return index |
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43 end |