Examples of DrillSideways

org.apache.lucene.facet.DrillSideways
Computes drill down and sideways counts for the provided {@link DrillDownQuery}. Drill sideways counts include alternative values/aggregates for the drill-down dimensions so that a dimension does not disappear after the user drills down into it.
Use one of the static search methods to do the search, and then get the hits and facet results from the returned {@link DrillSidewaysResult}.
NOTE: this allocates one {@link FacetsCollector} for each drill-down, plus one. If yourindex has high number of facet labels then this will multiply your memory usage. @lucene.experimental
org.apache.lucene.facet.search.DrillSideways
Computes drill down and sideways counts for the provided {@link DrillDownQuery}. Drill sideways counts include alternative values/aggregates for the drill-down dimensions so that a dimension does not disappear after the user drills down into it.
Use one of the static search methods to do the search, and then get the hits and facet results from the returned {@link DrillSidewaysResult}.
NOTE: this allocates one {@link FacetsCollector} for each drill-down, plus one. If yourindex has high number of facet labels then this will multiply your memory usage. @lucene.experimental

Examples of org.apache.lucene.facet.search.DrillSideways

                          new LongRange("over 1000", 1000L, false, Long.MAX_VALUE, false));
    FacetSearchParams fsp = new FacetSearchParams(countRequest, rangeRequest);
    
    final Set<String> dimSeen = new HashSet<String>();


    DrillSideways ds = new DrillSideways(s, tr) {
        @Override
        protected FacetsAccumulator getDrillDownAccumulator(FacetSearchParams fsp) {
          checkSeen(fsp);
          return FacetsAccumulator.create(fsp, r, tr, null);
        }


        @Override
        protected FacetsAccumulator getDrillSidewaysAccumulator(String dim, FacetSearchParams fsp) {
          checkSeen(fsp);
          return FacetsAccumulator.create(fsp, r, tr, null);
        }


        private void checkSeen(FacetSearchParams fsp) {
          // Each dim should up only once, across
          // both drillDown and drillSideways requests:
          for(FacetRequest fr : fsp.facetRequests) {
            String dim = fr.categoryPath.components[0];
            assertFalse("dim " + dim + " already seen", dimSeen.contains(dim));
            dimSeen.add(dim);
          }
        }


        @Override
        protected boolean scoreSubDocsAtOnce() {
          return random().nextBoolean();
        }
      };


    // First search, no drill downs:
    DrillDownQuery ddq = new DrillDownQuery(FacetIndexingParams.DEFAULT, new MatchAllDocsQuery());
    DrillSidewaysResult dsr = ds.search(null, ddq, 10, fsp);


    assertEquals(100, dsr.hits.totalHits);
    assertEquals(2, dsr.facetResults.size());
    assertEquals("dim (0)\n  b (75)\n  a (25)\n", FacetTestUtils.toSimpleString(dsr.facetResults.get(0)));
    assertEquals("field (0)\n  less than 10 (10)\n  less than or equal to 10 (11)\n  over 90 (9)\n  90 or above (10)\n  over 1000 (0)\n", FacetTestUtils.toSimpleString(dsr.facetResults.get(1)));


    // Second search, drill down on dim=b:
    ddq = new DrillDownQuery(FacetIndexingParams.DEFAULT, new MatchAllDocsQuery());
    ddq.add(new CategoryPath("dim", "b"));
    dimSeen.clear();
    dsr = ds.search(null, ddq, 10, fsp);


    assertEquals(75, dsr.hits.totalHits);
    assertEquals(2, dsr.facetResults.size());
    assertEquals("dim (0)\n  b (75)\n  a (25)\n", FacetTestUtils.toSimpleString(dsr.facetResults.get(0)));
    assertEquals("field (0)\n  less than 10 (7)\n  less than or equal to 10 (8)\n  over 90 (7)\n  90 or above (8)\n  over 1000 (0)\n", FacetTestUtils.toSimpleString(dsr.facetResults.get(1)));


    // Third search, drill down on "less than or equal to 10":
    ddq = new DrillDownQuery(FacetIndexingParams.DEFAULT, new MatchAllDocsQuery());
    ddq.add("field", NumericRangeQuery.newLongRange("field", 0L, 10L, true, true));
    dimSeen.clear();
    dsr = ds.search(null, ddq, 10, fsp);


    assertEquals(11, dsr.hits.totalHits);
    assertEquals(2, dsr.facetResults.size());
    assertEquals("dim (0)\n  b (8)\n  a (3)\n", FacetTestUtils.toSimpleString(dsr.facetResults.get(0)));
    assertEquals("field (0)\n  less than 10 (10)\n  less than or equal to 10 (11)\n  over 90 (9)\n  90 or above (10)\n  over 1000 (0)\n", FacetTestUtils.toSimpleString(dsr.facetResults.get(1)));

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Examples of org.apache.lucene.facet.search.DrillSideways

                          new LongRange("over 1000", 1000L, false, Long.MAX_VALUE, false));
    FacetSearchParams fsp = new FacetSearchParams(countRequest, rangeRequest);
    
    final Set<String> dimSeen = new HashSet<String>();


    DrillSideways ds = new DrillSideways(s, state) {
        @Override
        protected FacetsAccumulator getDrillDownAccumulator(FacetSearchParams fsp) throws IOException {
          checkSeen(fsp);
          return FacetsAccumulator.create(fsp, state, null);
        }


        @Override
        protected FacetsAccumulator getDrillSidewaysAccumulator(String dim, FacetSearchParams fsp) throws IOException {
          checkSeen(fsp);
          return FacetsAccumulator.create(fsp, state, null);
        }


        private void checkSeen(FacetSearchParams fsp) {
          // Each dim should up only once, across
          // both drillDown and drillSideways requests:
          for(FacetRequest fr : fsp.facetRequests) {
            String dim = fr.categoryPath.components[0];
            assertFalse("dim " + dim + " already seen", dimSeen.contains(dim));
            dimSeen.add(dim);
          }
        }


        @Override
        protected boolean scoreSubDocsAtOnce() {
          return random().nextBoolean();
        }
      };


    // First search, no drill downs:
    DrillDownQuery ddq = new DrillDownQuery(FacetIndexingParams.DEFAULT, new MatchAllDocsQuery());
    DrillSidewaysResult dsr = ds.search(null, ddq, 10, fsp);


    assertEquals(100, dsr.hits.totalHits);
    assertEquals(2, dsr.facetResults.size());
    assertEquals("dim (0)\n  b (75)\n  a (25)\n", FacetTestUtils.toSimpleString(dsr.facetResults.get(0)));
    assertEquals("field (0)\n  less than 10 (10)\n  less than or equal to 10 (11)\n  over 90 (9)\n  90 or above (10)\n  over 1000 (0)\n", FacetTestUtils.toSimpleString(dsr.facetResults.get(1)));


    // Second search, drill down on dim=b:
    ddq = new DrillDownQuery(FacetIndexingParams.DEFAULT, new MatchAllDocsQuery());
    ddq.add(new CategoryPath("dim", "b"));
    dimSeen.clear();
    dsr = ds.search(null, ddq, 10, fsp);


    assertEquals(75, dsr.hits.totalHits);
    assertEquals(2, dsr.facetResults.size());
    assertEquals("dim (0)\n  b (75)\n  a (25)\n", FacetTestUtils.toSimpleString(dsr.facetResults.get(0)));
    assertEquals("field (0)\n  less than 10 (7)\n  less than or equal to 10 (8)\n  over 90 (7)\n  90 or above (8)\n  over 1000 (0)\n", FacetTestUtils.toSimpleString(dsr.facetResults.get(1)));


    // Third search, drill down on "less than or equal to 10":
    ddq = new DrillDownQuery(FacetIndexingParams.DEFAULT, new MatchAllDocsQuery());
    ddq.add("field", NumericRangeQuery.newLongRange("field", 0L, 10L, true, true));
    dimSeen.clear();
    dsr = ds.search(null, ddq, 10, fsp);


    assertEquals(11, dsr.hits.totalHits);
    assertEquals(2, dsr.facetResults.size());
    assertEquals("dim (0)\n  b (8)\n  a (3)\n", FacetTestUtils.toSimpleString(dsr.facetResults.get(0)));
    assertEquals("field (0)\n  less than 10 (10)\n  less than or equal to 10 (11)\n  over 90 (9)\n  90 or above (10)\n  over 1000 (0)\n", FacetTestUtils.toSimpleString(dsr.facetResults.get(1)));

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Examples of org.apache.lucene.facet.search.DrillSideways

                                                      new LongRange("90 or above", 90L, true, 100L, false),
                                                      new LongRange("over 1000", 1000L, false, Long.MAX_VALUE, false)));


    final Set<String> dimSeen = new HashSet<String>();


    DrillSideways ds = new DrillSideways(s, tr) {
        @Override
        protected FacetsAccumulator getDrillDownAccumulator(FacetSearchParams fsp) {
          checkSeen(fsp);
          return RangeFacetsAccumulatorWrapper.create(fsp, searcher.getIndexReader(), tr);
        }


        @Override
        protected FacetsAccumulator getDrillSidewaysAccumulator(String dim, FacetSearchParams fsp) {
          checkSeen(fsp);
          return RangeFacetsAccumulatorWrapper.create(fsp, searcher.getIndexReader(), tr);
        }


        private void checkSeen(FacetSearchParams fsp) {
          // Each dim should should up only once, across
          // both drillDown and drillSideways requests:
          for(FacetRequest fr : fsp.facetRequests) {
            String dim = fr.categoryPath.components[0];
            assertFalse("dim " + dim + " already seen", dimSeen.contains(dim));
            dimSeen.add(dim);
          }
        }


        @Override
        protected boolean scoreSubDocsAtOnce() {
          return random().nextBoolean();
        }
      };


    // First search, no drill downs:
    DrillDownQuery ddq = new DrillDownQuery(FacetIndexingParams.DEFAULT, new MatchAllDocsQuery());
    DrillSidewaysResult dsr = ds.search(null, ddq, 10, fsp);


    assertEquals(100, dsr.hits.totalHits);
    assertEquals(2, dsr.facetResults.size());
    assertEquals("dim (0)\n  b (75)\n  a (25)\n", FacetTestUtils.toSimpleString(dsr.facetResults.get(0)));
    assertEquals("field (0)\n  less than 10 (10)\n  less than or equal to 10 (11)\n  over 90 (9)\n  90 or above (10)\n  over 1000 (0)\n", FacetTestUtils.toSimpleString(dsr.facetResults.get(1)));


    // Second search, drill down on dim=b:
    ddq = new DrillDownQuery(FacetIndexingParams.DEFAULT, new MatchAllDocsQuery());
    ddq.add(new CategoryPath("dim", "b"));
    dimSeen.clear();
    dsr = ds.search(null, ddq, 10, fsp);


    assertEquals(75, dsr.hits.totalHits);
    assertEquals(2, dsr.facetResults.size());
    assertEquals("dim (0)\n  b (75)\n  a (25)\n", FacetTestUtils.toSimpleString(dsr.facetResults.get(0)));
    assertEquals("field (0)\n  less than 10 (7)\n  less than or equal to 10 (8)\n  over 90 (7)\n  90 or above (8)\n  over 1000 (0)\n", FacetTestUtils.toSimpleString(dsr.facetResults.get(1)));


    // Third search, drill down on "less than or equal to 10":
    ddq = new DrillDownQuery(FacetIndexingParams.DEFAULT, new MatchAllDocsQuery());
    ddq.add("field", NumericRangeQuery.newLongRange("field", 0L, 10L, true, true));
    dimSeen.clear();
    dsr = ds.search(null, ddq, 10, fsp);


    assertEquals(11, dsr.hits.totalHits);
    assertEquals(2, dsr.facetResults.size());
    assertEquals("dim (0)\n  b (8)\n  a (3)\n", FacetTestUtils.toSimpleString(dsr.facetResults.get(0)));
    assertEquals("field (0)\n  less than 10 (10)\n  less than or equal to 10 (11)\n  over 90 (9)\n  90 or above (10)\n  over 1000 (0)\n", FacetTestUtils.toSimpleString(dsr.facetResults.get(1)));

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