Examples of org.apache.lucene.facet.FacetField

org.apache.lucene.facet.FacetField
Add an instance of this to your {@link Document} for every facet label.
NOTE: you must call {@link FacetsConfig#build(Document)} beforeyou add the document to IndexWriter.

    config.setMultiValued("a", true);
    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);


    Document doc = new Document();
    doc.add(newTextField("field", "text", Field.Store.NO));
    doc.add(new FacetField("a", "path", "x"));
    doc.add(new FacetField("a", "path", "y"));
    writer.addDocument(config.build(taxoWriter, doc));


    // NRT open
    IndexSearcher searcher = newSearcher(writer.getReader());

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    FacetsConfig config = new FacetsConfig();
    config.setMultiValued("dim", true);


    Document doc = new Document();
    doc.add(newTextField("field", "text", Field.Store.NO));
    doc.add(new FacetField("dim", "test\u001Fone"));
    doc.add(new FacetField("dim", "test\u001Etwo"));
    writer.addDocument(config.build(taxoWriter, doc));


    // NRT open
    IndexSearcher searcher = newSearcher(writer.getReader());

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    config.setHierarchical("dim3", true);
    config.setRequireDimCount("dim3", true);


    Document doc = new Document();
    doc.add(newTextField("field", "text", Field.Store.NO));
    doc.add(new FacetField("dim", "a"));
    doc.add(new FacetField("dim2", "a"));
    doc.add(new FacetField("dim2", "b"));
    doc.add(new FacetField("dim3", "a", "b"));
    doc.add(new FacetField("dim3", "a", "c"));
    writer.addDocument(config.build(taxoWriter, doc));


    // NRT open
    IndexSearcher searcher = newSearcher(writer.getReader());

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    int numLabels = TestUtil.nextInt(random(), 40000, 100000);
    
    Document doc = new Document();
    doc.add(newTextField("field", "text", Field.Store.NO));
    for (int i = 0; i < numLabels; i++) {
      doc.add(new FacetField("dim", "" + i));
    }
    writer.addDocument(config.build(taxoWriter, doc));
    
    // NRT open
    IndexSearcher searcher = newSearcher(writer.getReader());

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    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
    FacetsConfig config = new FacetsConfig();


    Document doc = new Document();
    doc.add(newTextField("field", "text", Field.Store.NO));
    doc.add(new FacetField("a", "path", "other"));
    try {
      config.build(taxoWriter, doc);
      fail("did not hit expected exception");
    } catch (IllegalArgumentException iae) {
      // expected

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    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
    FacetsConfig config = new FacetsConfig();


    Document doc = new Document();
    doc.add(newTextField("field", "text", Field.Store.NO));
    doc.add(new FacetField("a", "path"));
    doc.add(new FacetField("a", "path2"));
    try {
      config.build(taxoWriter, doc);
      fail("did not hit expected exception");
    } catch (IllegalArgumentException iae) {
      // expected

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    config.setIndexFieldName("b", "$b");
    
    for(int i = atLeast(30); i > 0; --i) {
      Document doc = new Document();
      doc.add(new StringField("f", "v", Field.Store.NO));
      doc.add(new FacetField("a", "1"));
      doc.add(new FacetField("b", "1"));
      iw.addDocument(config.build(taxoWriter, doc));
    }
    
    DirectoryReader r = DirectoryReader.open(iw, true);
    DirectoryTaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoWriter);

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    DirectoryTaxonomyWriter taxoWriter = new DirectoryTaxonomyWriter(taxoDir);
    IndexWriter iw = new IndexWriter(indexDir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())));
    FacetsConfig config = new FacetsConfig();
    for(int i = atLeast(30); i > 0; --i) {
      Document doc = new Document();
      doc.add(new FacetField("a", "1"));
      doc.add(new FacetField("b", "1"));
      iw.addDocument(config.build(taxoWriter, doc));
    }
    
    DirectoryReader r = DirectoryReader.open(iw, true);
    DirectoryTaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoWriter);

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    DirectoryTaxonomyWriter taxoWriter = new DirectoryTaxonomyWriter(taxoDir);
    IndexWriter iw = new IndexWriter(indexDir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())));
    FacetsConfig config = new FacetsConfig();


    Document doc = new Document();
    doc.add(new FacetField("a", "1"));
    doc.add(new FacetField("b", "1"));
    iw.addDocument(config.build(taxoWriter, doc));
    
    DirectoryReader r = DirectoryReader.open(iw, true);
    DirectoryTaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoWriter);

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    DirectoryTaxonomyWriter taxoWriter = new DirectoryTaxonomyWriter(taxoDir);
    IndexWriter iw = new IndexWriter(indexDir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())));
    FacetsConfig config = new FacetsConfig();
    for (int i = 0; i < 10; i++) {
      Document doc = new Document();
      doc.add(new FacetField("a", Integer.toString(i)));
      iw.addDocument(config.build(taxoWriter, doc));
    }
    
    DirectoryReader r = DirectoryReader.open(iw, true);
    DirectoryTaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoWriter);

View Full Code Here

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