Examples of org.apache.lucene.facet.sortedset.SortedSetDocValuesReaderState

Package org.apache.lucene.facet.sortedset

Examples of org.apache.lucene.facet.sortedset.SortedSetDocValuesReaderState

org.apache.lucene.facet.sortedset.SortedSetDocValuesReaderState
Wraps a {@link IndexReader} and resolves ordsusing existing {@link SortedSetDocValues} APIs without aseparate taxonomy index. This only supports flat facets (dimension + label), and it makes faceting a bit slower, adds some cost at reopen time, but avoids managing the separate taxonomy index. It also requires less RAM than the taxonomy index, as it manages the flat (2-level) hierarchy more efficiently. In addition, the tie-break during faceting is now meaningful (in label sorted order).
NOTE: creating an instance of this class is somewhat costly, as it computes per-segment ordinal maps, so you should create it once and re-use that one instance for a given {@link IndexReader}.


    final IndexReader r = w.getReader();
    w.close();


    IndexSearcher s = newSearcher(r);
    final SortedSetDocValuesReaderState state = new SortedSetDocValuesReaderState(s.getIndexReader());


    final CountFacetRequest countRequest = new CountFacetRequest(new CategoryPath("dim"), 2);
    final RangeFacetRequest<LongRange> rangeRequest = new RangeFacetRequest<LongRange>("field",
                          new LongRange("less than 10", 0L, true, 10L, false),
                          new LongRange("less than or equal to 10", 0L, true, 10L, true),

View Full Code Here

      assertEquals("incorrect label returned for " + fa, fsp.facetRequests.get(0).categoryPath, facetResults.get(0).getFacetResultNode().label);
    }
    
    try {
      // SortedSetDocValuesAccumulator cannot even be created in such state
      assertNull(new SortedSetDocValuesAccumulator(new SortedSetDocValuesReaderState(indexReader), fsp));
      // if this ever changes, make sure FacetResultNode is labeled correctly 
      fail("should not have succeeded to execute a request over a category which wasn't indexed as SortedSetDVField");
    } catch (IllegalArgumentException e) {
      // expected
    }

View Full Code Here

      w.forceMerge(1);
    }
    IndexReader r = w.getReader();
    w.close();


    final SortedSetDocValuesReaderState sortedSetDVState;
    IndexSearcher s = newSearcher(r);
    if (doUseDV) {
      sortedSetDVState = new SortedSetDocValuesReaderState(s.getIndexReader());
    } else {
      sortedSetDVState = null;
    }


    if (VERBOSE) {

View Full Code Here


  /** User runs a query and counts facets. */
  private List<FacetResult> search() throws IOException {
    DirectoryReader indexReader = DirectoryReader.open(indexDir);
    IndexSearcher searcher = new IndexSearcher(indexReader);
    SortedSetDocValuesReaderState state = new SortedSetDocValuesReaderState(indexReader);


    // Count both "Publish Year" and "Author" dimensions
    FacetSearchParams fsp = new FacetSearchParams(
        new CountFacetRequest(new CategoryPath("Publish Year"), 10), 
        new CountFacetRequest(new CategoryPath("Author"), 10));

View Full Code Here

  
  /** User drills down on 'Publish Year/2010'. */
  private List<FacetResult> drillDown() throws IOException {
    DirectoryReader indexReader = DirectoryReader.open(indexDir);
    IndexSearcher searcher = new IndexSearcher(indexReader);
    SortedSetDocValuesReaderState state = new SortedSetDocValuesReaderState(indexReader);


    // Now user drills down on Publish Year/2010:
    FacetSearchParams fsp = new FacetSearchParams(new CountFacetRequest(new CategoryPath("Author"), 10));
    DrillDownQuery q = new DrillDownQuery(fsp.indexingParams, new MatchAllDocsQuery());
    q.add(new CategoryPath("Publish Year/2010", '/'));

View Full Code Here

      }
      w.forceMerge(1);
    }
    IndexReader r = w.getReader();


    final SortedSetDocValuesReaderState sortedSetDVState;
    IndexSearcher s = newSearcher(r);
    
    if (doUseDV) {
      sortedSetDVState = new DefaultSortedSetDocValuesReaderState(s.getIndexReader());
    } else {

View Full Code Here


  /** User runs a query and counts facets. */
  private List<FacetResult> search() throws IOException {
    DirectoryReader indexReader = DirectoryReader.open(indexDir);
    IndexSearcher searcher = new IndexSearcher(indexReader);
    SortedSetDocValuesReaderState state = new DefaultSortedSetDocValuesReaderState(indexReader);


    // Aggregatses the facet counts
    FacetsCollector fc = new FacetsCollector();


    // MatchAllDocsQuery is for "browsing" (counts facets

View Full Code Here

  
  /** User drills down on 'Publish Year/2010'. */
  private FacetResult drillDown() throws IOException {
    DirectoryReader indexReader = DirectoryReader.open(indexDir);
    IndexSearcher searcher = new IndexSearcher(indexReader);
    SortedSetDocValuesReaderState state = new DefaultSortedSetDocValuesReaderState(indexReader);


    // Now user drills down on Publish Year/2010:
    DrillDownQuery q = new DrillDownQuery(config);
    q.add("Publish Year", "2010");
    FacetsCollector fc = new FacetsCollector();

View Full Code Here

      w.forceMerge(1);
    }
    IndexReader r = w.getReader();
    w.close();


    final SortedSetDocValuesReaderState sortedSetDVState;
    IndexSearcher s = newSearcher(r);
    if (doUseDV) {
      sortedSetDVState = new SortedSetDocValuesReaderState(s.getIndexReader());
    } else {
      sortedSetDVState = null;
    }


    if (VERBOSE) {

View Full Code Here


    final IndexReader r = w.getReader();
    w.close();


    IndexSearcher s = newSearcher(r);
    final SortedSetDocValuesReaderState state = new SortedSetDocValuesReaderState(s.getIndexReader());


    final CountFacetRequest countRequest = new CountFacetRequest(new CategoryPath("dim"), 2);
    final RangeFacetRequest<LongRange> rangeRequest = new RangeFacetRequest<LongRange>("field",
                          new LongRange("less than 10", 0L, true, 10L, false),
                          new LongRange("less than or equal to 10", 0L, true, 10L, true),

View Full Code Here

0 1

TOP

Related Classes of org.apache.lucene.facet.sortedset.SortedSetDocValuesReaderState

org.apache.lucene.demo.facet.SimpleSortedSetFacetsExample

org.apache.lucene.facet.range.TestRangeAccumulator

org.apache.lucene.facet.search.TestDrillSideways

org.apache.lucene.facet.search.TestFacetsCollector

org.apache.lucene.facet.TestDrillSideways

org.apache.lucene.index.SlowCompositeReaderWrapper

org.apache.lucene.index.SortedSetDocValues

org.apache.lucene.util.BytesRef

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.