Examples of org.apache.lucene.index.Term

org.apache.lucene.index.Term
A Term represents a word from text. This is the unit of search. It is composed of two elements, the text of the word, as a string, and the name of the field that the text occurred in. Note that terms may represent more than words from text fields, but also things like dates, email addresses, urls, etc.

    if (oDir.exists()) {
      File[] aSegments = oDir.listFiles();
      if (null!=aSegments) {
      if (aSegments.length>0) {
          IndexReader oReader = IndexReader.open(sDirectory);
          int iDeleted = oReader.deleteDocuments(new Term("container", sFolder));
          oReader.close();
      } // fi 
      } // fi
    } else {
      FileSystem oFS = new FileSystem();

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    if (DebugFile.trace)
      DebugFile.writeln("new IndexWriter(...)");


  if (!bNewIndex) {
      IndexReader oIRdr = IndexReader.open(sDirectory);
      oIRdr.deleteDocuments(new Term("guid",sGuid));
      oIRdr.close();
  }


    IndexWriter oIWrt = new IndexWriter(sDirectory, (Analyzer) oAnalyzer.newInstance(), bNewIndex);

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    BugRecord[] aRetArr;


  BooleanQuery oQry = new BooleanQuery();


  oQry.add(new TermQuery(new Term("workarea",sWorkArea)),BooleanClause.Occur.MUST);


    if (null!=sProjectGUID)
    if (sProjectGUID.length()>0)
      oQry.add(new TermQuery(new Term("container",sProjectGUID)),BooleanClause.Occur.MUST);


    if (null!=sWrittenBy)
      if (sWrittenBy.length()>0)
      oQry.add(new TermQuery(new Term("writer",sWrittenBy)),BooleanClause.Occur.MUST);


    if (null!=sReportedBy)
      if (sReportedBy.length()>0)
      oQry.add(new TermQuery(new Term("author",sReportedBy)),BooleanClause.Occur.MUST);


    if (null!=sTitle)
      if (sTitle.length()>0)
      oQry.add(new TermQuery(new Term("title",sTitle)),BooleanClause.Occur.MUST);


    if (null!=sType)
      if (sType.length()>0)
      oQry.add(new TermQuery(new Term("type",sType)),BooleanClause.Occur.MUST);


    if (null!=sStatus)
      if (sStatus.length()>0)
      oQry.add(new TermQuery(new Term("status",sStatus)),BooleanClause.Occur.MUST);


    if (null!=sPriority)
      if (sPriority.length()>0)
      oQry.add(new TermQuery(new Term("priority",sPriority)),BooleanClause.Occur.MUST);


    if (null!=sSeverity)
      if (sSeverity.length()>0)
      oQry.add(new TermQuery(new Term("severity",sSeverity)),BooleanClause.Occur.MUST);


    if (dtFromDate!=null && dtToDate!=null)
    oQry.add(new RangeQuery(new Term("created",DateTools.dateToString(dtFromDate, DateTools.Resolution.DAY)),
                  new Term("created",DateTools.dateToString(dtToDate, DateTools.Resolution.DAY)), true), BooleanClause.Occur.MUST);    
    else if (dtFromDate!=null)
    oQry.add(new RangeQuery(new Term("created",DateTools.dateToString(dtFromDate, DateTools.Resolution.DAY)),
                  new Term("created",DateTools.dateToString(new Date(299,11,31), DateTools.Resolution.DAY)), true), BooleanClause.Occur.MUST);    
    else if (dtToDate!=null)
    oQry.add(new RangeQuery(new Term("created",DateTools.dateToString(new Date(79,11,31), DateTools.Resolution.DAY)),
                  new Term("created",DateTools.dateToString(dtToDate, DateTools.Resolution.DAY)), true), BooleanClause.Occur.MUST);
    if (null!=sText)
      if (sText.length()>0)
      oQry.add(new TermQuery(new Term("text",sText)),BooleanClause.Occur.SHOULD);


    if (null!=sComments)
      if (sComments.length()>0)
      oQry.add(new TermQuery(new Term("comments",sComments)),BooleanClause.Occur.SHOULD);


  String sSegments = Gadgets.chomp(sLuceneIndexPath,File.separator)+"k_bugs"+File.separator+sWorkArea;  
    if (DebugFile.trace) DebugFile.writeln("new IndexSearcher("+sSegments+")");
    IndexSearcher oSearch = new IndexSearcher(sSegments);

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      DebugFile.incIdent();
    }


  BooleanQuery oQry = new BooleanQuery();


  oQry.add(new TermQuery(new Term("workarea",sWorkArea)),BooleanClause.Occur.MUST);
  
  for(int i=0; i<values.length;i++){
    if(obligatorio[i]){
      oQry.add(new TermQuery(new Term("value",values[i])),BooleanClause.Occur.MUST);
    }else{
      oQry.add(new TermQuery(new Term("value",values[i])),BooleanClause.Occur.SHOULD);
    }
  }


  String sSegments = Gadgets.chomp(oProps.getProperty("luceneindex"),File.separator)+"k_contacts"+File.separator+sWorkArea;  
    if (DebugFile.trace) DebugFile.writeln("new IndexSearcher("+sSegments+")");

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    NewsMessageRecord[] aRetArr;
  
  BooleanQuery oQrx = new BooleanQuery();


  oQrx.add(new TermQuery(new Term("workarea",sWorkArea)),BooleanClause.Occur.MUST);


    if (null!=sNewsGroupCategoryName)
    oQrx.add(new TermQuery(new Term("container",sNewsGroupCategoryName)),BooleanClause.Occur.MUST);    


    if (dtFromDate!=null && dtToDate!=null)
    oQrx.add(new RangeQuery(new Term("created",DateTools.dateToString(dtFromDate, DateTools.Resolution.DAY)),
                  new Term("created",DateTools.dateToString(dtToDate, DateTools.Resolution.DAY)), true), BooleanClause.Occur.MUST);    
    else if (dtFromDate!=null)
    oQrx.add(new RangeQuery(new Term("created",DateTools.dateToString(dtFromDate, DateTools.Resolution.DAY)),
                  new Term("created",DateTools.dateToString(new Date(299,11,31), DateTools.Resolution.DAY)), true), BooleanClause.Occur.MUST);    
    else if (dtToDate!=null)
    oQrx.add(new RangeQuery(new Term("created",DateTools.dateToString(new Date(79,11,31), DateTools.Resolution.DAY)),
                  new Term("created",DateTools.dateToString(dtToDate, DateTools.Resolution.DAY)), true), BooleanClause.Occur.MUST);    


  BooleanQuery oQry = new BooleanQuery();


  if (null!=sAuthor)
    oQry.add(new TermQuery(new Term("author",sAuthor)),BooleanClause.Occur.SHOULD);


  if (null!=sTitle)
    oQry.add(new TermQuery(new Term("title",sTitle)),BooleanClause.Occur.SHOULD);


  if (null!=sText)
    oQry.add(new TermQuery(new Term("text",sText)),BooleanClause.Occur.SHOULD);


  oQrx.add(oQry, BooleanClause.Occur.MUST);
  
  String sSegments = Gadgets.chomp(sLuceneIndexPath,File.separator)+"k_newsmsgs"+File.separator+sWorkArea;  
    if (DebugFile.trace) DebugFile.writeln("new IndexSearcher("+sSegments+")");

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    if (DebugFile.trace)
      DebugFile.writeln("IndexReader.open("+sDirectory+")");


    IndexReader oIRdr = IndexReader.open(sDirectory);
    oIRdr.deleteDocuments(new Term("guid", sGuid));
    oIRdr.close();


    IndexWriter oIWrt = new IndexWriter(sDirectory, (Analyzer) oAnalyzer
        .newInstance(), bNewIndex);

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    if (oDir.exists()) {
      File[] aFiles = oDir.listFiles();
      if (null!=aFiles) {
        if (aFiles.length>0) {
          IndexReader oReader = IndexReader.open(sDirectory);      
          int iDeleted = oReader.deleteDocuments(new Term("workarea", sWorkArea));
          oReader.close();
        }
      }
    } else {
      FileSystem oFS = new FileSystem();

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      try { oFS.mkdirs(sDirectory); } catch (Exception e) { throw new IOException(e.getClass().getName()+" "+e.getMessage()); }
    } // fi


    IndexReader oReader = IndexReader.open(sDirectory);


    int iDeleted = oReader.deleteDocuments(new Term("guid", sGuid));


    oReader.close();


    return iDeleted;
  } // delete

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    Scorer scorer;
    int count;
    
    // 1. (+f1:aa +f2:aaa)
    bquery = new BooleanQuery();
    bquery.add(new TermQuery(new Term("f1","aa")), BooleanClause.Occur.MUST);
    bquery.add(new TermQuery(new Term("f2","aaa")), BooleanClause.Occur.MUST);


    scorer = bquery.weight(searcher).scorer(reader, true, true);
    count = 0;
    while(scorer.nextDoc() != Scorer.NO_MORE_DOCS) count++;
    assertEquals("non-section count mismatch", 4, count);
    
    squery = new SectionSearchQuery(bquery);
    scorer = squery.weight(searcher).scorer(reader, true, true);
    count = 0;
    while(scorer.nextDoc() != Scorer.NO_MORE_DOCS) count++;
    assertEquals("seciton count mismatch", 2, count);
    
    // 2. (+f1:bb + f2:aaa)
    bquery = new BooleanQuery();
    bquery.add(new TermQuery(new Term("f1","bb")), BooleanClause.Occur.MUST);
    bquery.add(new TermQuery(new Term("f2","aaa")), BooleanClause.Occur.MUST);


    scorer = bquery.weight(searcher).scorer(reader, true, true);
    count = 0;
    while(scorer.nextDoc() != Scorer.NO_MORE_DOCS) count++;
    assertEquals("non-section count mismatch", 4, count);
    
    squery = new SectionSearchQuery(bquery);
    scorer = squery.weight(searcher).scorer(reader, true, true);
    count = 0;
    while(scorer.nextDoc() != Scorer.NO_MORE_DOCS) count++;
    assertEquals("seciton count mismatch", 3, count);
    
    // 3. (+f1:aa +f2:bbb)
    bquery = new BooleanQuery();
    bquery.add(new TermQuery(new Term("f1","aa")), BooleanClause.Occur.MUST);
    bquery.add(new TermQuery(new Term("f2","bbb")), BooleanClause.Occur.MUST);


    scorer = bquery.weight(searcher).scorer(reader, true, true);
    count = 0;
    while(scorer.nextDoc() != Scorer.NO_MORE_DOCS) count++;
    assertEquals("non-section count mismatch", 3, count);
    
    squery = new SectionSearchQuery(bquery);
    scorer = squery.weight(searcher).scorer(reader, true, true);
    count = 0;
    while(scorer.nextDoc() != Scorer.NO_MORE_DOCS) count++;
    assertEquals("seciton count mismatch", 2, count);
    
    // 4. (+f1:aa +(f2:bbb f2:ccc))
    BooleanQuery bquery2 = new BooleanQuery();
    bquery2.add(new TermQuery(new Term("f2","bbb")), BooleanClause.Occur.SHOULD);
    bquery2.add(new TermQuery(new Term("f2","ccc")), BooleanClause.Occur.SHOULD);
    bquery = new BooleanQuery();
    bquery.add(new TermQuery(new Term("f1","aa")), BooleanClause.Occur.MUST);
    bquery.add(bquery2, BooleanClause.Occur.MUST);


    scorer = bquery.weight(searcher).scorer(reader, true, true);
    count = 0;
    while(scorer.nextDoc() != Scorer.NO_MORE_DOCS) count++;

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    Scorer scorer;
    int count;
    
    // 1.
    bquery = new BooleanQuery();
    bquery.add(new TermQuery(new Term("f1","aa")), BooleanClause.Occur.MUST);
    bquery.add(new IntMetaDataQuery(intMetaTerm, new IntMetaDataQuery.SimpleValueValidator(100)), BooleanClause.Occur.MUST);
    squery = new SectionSearchQuery(bquery);
    scorer = squery.weight(searcher).scorer(reader, true, true);
    count = 0;
    while(scorer.nextDoc() != Scorer.NO_MORE_DOCS) count++;
    assertEquals("section count mismatch", 1, count);
    
    // 2.
    bquery = new BooleanQuery();
    bquery.add(new TermQuery(new Term("f1","aa")), BooleanClause.Occur.MUST);
    bquery.add(new IntMetaDataQuery(intMetaTerm, new IntMetaDataQuery.SimpleValueValidator(200)), BooleanClause.Occur.MUST);
    squery = new SectionSearchQuery(bquery);
    scorer = squery.weight(searcher).scorer(reader, true, true);
    count = 0;
    while(scorer.nextDoc() != Scorer.NO_MORE_DOCS) count++;
    assertEquals("section count mismatch", 1, count);
    
    // 3.
    bquery = new BooleanQuery();
    bquery.add(new TermQuery(new Term("f1","bb")), BooleanClause.Occur.MUST);
    bquery.add(new IntMetaDataQuery(intMetaTerm, new IntMetaDataQuery.SimpleValueValidator(200)), BooleanClause.Occur.MUST);
    squery = new SectionSearchQuery(bquery);
    scorer = squery.weight(searcher).scorer(reader, true, true);
    count = 0;
    while(scorer.nextDoc() != Scorer.NO_MORE_DOCS) count++;
    assertEquals("section count mismatch", 2, count);
    
    // 4.
    bquery = new BooleanQuery();
    bquery.add(new TermQuery(new Term("f1","aa")), BooleanClause.Occur.MUST);
    bquery.add(new IntMetaDataQuery(intMetaTerm, new IntMetaDataQuery.SimpleValueValidator(300)), BooleanClause.Occur.MUST);
    squery = new SectionSearchQuery(bquery);
    scorer = squery.weight(searcher).scorer(reader, true, true);
    count = 0;
    while(scorer.nextDoc() != Scorer.NO_MORE_DOCS) count++;
    assertEquals("section count mismatch", 1, count);
    
    // 5.
    bquery = new BooleanQuery();
    bquery.add(new TermQuery(new Term("f1","bb")), BooleanClause.Occur.MUST);
    bquery.add(new IntMetaDataQuery(intMetaTerm, new IntMetaDataQuery.SimpleValueValidator(300)), BooleanClause.Occur.MUST);
    squery = new SectionSearchQuery(bquery);
    scorer = squery.weight(searcher).scorer(reader, true, true);
    count = 0;
    while(scorer.nextDoc() != Scorer.NO_MORE_DOCS) count++;

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