Package org.apache.lucene.index

Examples of org.apache.lucene.index.IndexReader.terms()

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   * @param field  - the name of the command or null for all of them.
   */
  public void terms(String field) throws IOException {
    TreeMap termMap = new TreeMap();
    IndexReader indexReader = IndexReader.open(indexName);
    TermEnum terms = indexReader.terms();
    while (terms.next()) {
      Term term = terms.term();
      //message(term.field() + ":" + term.text() + " freq:" + terms.docFreq());
      //if we're either not looking by field or we're matching the specific field
      if ((field == null) || field.equals(term.field()))
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    int min=mincount-1;  // the smallest value in the top 'N' values   
    int off=offset;
    int lim=limit>=0 ? limit : Integer.MAX_VALUE;

    String startTerm = prefix==null ? "" : ft.toInternal(prefix);
    TermEnum te = r.terms(new Term(field,startTerm));
    TermDocs td = r.termDocs();

    if (docs.size() >= mincount) {
    do {
      Term t = te.term();
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    // Separately count how many tokens are actually in the index:
    IndexReader reader = IndexReader.open(benchmark.getRunData().getDirectory());
    assertEquals(NUM_DOCS, reader.numDocs());

    TermEnum terms = reader.terms();
    TermDocs termDocs = reader.termDocs();
    int totalTokenCount2 = 0;
    while(terms.next()) {
      termDocs.seek(terms.term());
      while(termDocs.next())
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        LinkedList termsWithPrefix = new LinkedList();
        IndexReader ir = IndexReader.open(indexStore);

        // this TermEnum gives "piccadilly", "pie" and "pizza".
        String prefix = "pi";
        TermEnum te = ir.terms(new Term("body", prefix + "*"));
        do {
            if (te.term().text().startsWith(prefix))
            {
                termsWithPrefix.add(te.term());
            }
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    TermDocs termDocs = null;
    try {
      reader = IndexReader.open(dir);
      termCounts = new int[reader.maxDoc()];
      try {
        termEnum = reader.terms(new Term(field,""));
        try {
          termDocs = reader.termDocs();
          do {
            Term term = termEnum.term();
            if (term != null && term.field().equals(fieldName)) {
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    Directory dir = new MockRAMDirectory();
    IndexWriter writer  = new IndexWriter(dir, new WhitespaceAnalyzer(), true);
    addDoc(writer, "aaa bbb");
    writer.close();
    IndexReader reader = IndexReader.open(dir);
    SegmentTermEnum termEnum = (SegmentTermEnum) reader.terms();
    assertTrue(termEnum.next());
    assertEquals("aaa", termEnum.term().text());
    assertTrue(termEnum.next());
    assertEquals("aaa", termEnum.prev().text());
    assertEquals("bbb", termEnum.term().text());
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  {
      IndexReader reader = IndexReader.open(dir);
      TermEnum termEnum = null;

    // create enumeration of all terms
    termEnum = reader.terms();
    // go to the first term (aaa)
    termEnum.next();
    // assert that term is 'aaa'
    assertEquals("aaa", termEnum.term().text());
    assertEquals(200, termEnum.docFreq());
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    termEnum.close();


    // create enumeration of terms after term 'aaa', including 'aaa'
    termEnum = reader.terms(new Term("content", "aaa"));
    // assert that term is 'aaa'
    assertEquals("aaa", termEnum.term().text());
    assertEquals(200, termEnum.docFreq());
    // go to term 'bbb'
    termEnum.next();
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        LinkedList termsWithPrefix = new LinkedList();
        IndexReader ir = IndexReader.open(indexStore);

        // this TermEnum gives "piccadilly", "pie" and "pizza".
        String prefix = "pi";
        TermEnum te = ir.terms(new Term("body", prefix));
        do {
            if (te.term().text().startsWith(prefix))
            {
                termsWithPrefix.add(te.term());
            }
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        // search for "blue* pizza":
        MultiPhraseQuery query3 = new MultiPhraseQuery();
        termsWithPrefix.clear();
        prefix = "blue";
        te = ir.terms(new Term("body", prefix));
        do {
            if (te.term().text().startsWith(prefix))
            {
                termsWithPrefix.add(te.term());
            }
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