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

org.apache.lucene.facet.search.FacetRequest
Defines an aggregation request for a category. Allows specifying the {@link #numResults number of child categories} to return as well as{@link #getSortOrder() which} categories to consider the "top" (highest orlowest ranking ones).
If the category being aggregated is hierarchical, you can also specify the {@link #setDepth(int) depth} up which to aggregate child categories as wellas how the result should be {@link #setResultMode(ResultMode) constructed}. @lucene.experimental

          "It is only valid to call this method with result obtained for a " +
          "facet request created through sampler.overSamlpingSearchParams()",
          e);
    }
    
    FacetRequest origFrq = sampledFreq.orig;


    FacetResultNode trimmedRootNode = facetResult.getFacetResultNode();
    trimSubResults(trimmedRootNode, origFrq.numResults);
    
    return new FacetResult(origFrq, trimmedRootNode, facetResult.getNumValidDescendants());

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  /** Validate counts for returned facets, and that there are not too many results */
  protected static void assertCountsAndCardinality(Map<CategoryPath, Integer> facetCountsTruth, List<FacetResult> facetResults) throws Exception {
    for (FacetResult fr : facetResults) {
      FacetResultNode topResNode = fr.getFacetResultNode();
      FacetRequest freq = fr.getFacetRequest();
      if (VERBOSE) {
        System.out.println(freq.categoryPath.toString()+ "\t\t" + topResNode);
      }
      assertCountsAndCardinality(facetCountsTruth, topResNode, freq.numResults);
    }

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    params.setOversampleFactor(5);
    params.setSamplingThreshold(60);
    params.setSampleRatio(0.1);
    
    FacetResult res = searchWithFacets(r, tr, fsp, params);
    FacetRequest req = res.getFacetRequest();
    assertEquals(facetRequest, req);
    
    FacetResultNode rootNode = res.getFacetResultNode();
    
    // Each node below root should also have sub-results as the requested depth was '2'

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    List<FacetResult> results = new ArrayList<FacetResult>();
    SampleFixer sampleFixer = sampler.samplingParams.getSampleFixer();
    
    for (FacetResult fres : sampleRes) {
      // for sure fres is not null because this is guaranteed by the delegee.
      FacetRequest fr = fres.getFacetRequest();
      PartitionsFacetResultsHandler frh = createFacetResultsHandler(fr, createOrdinalValueResolver(fr));
      if (sampleFixer != null) {
        // fix the result of current request
        sampleFixer.fixResult(docids, fres, sampleSet.actualSampleRatio); 
        fres = frh.rearrangeFacetResult(fres); // let delegee's handler do any

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    List<FacetResult> sampleRes = super.accumulate(docids);
    
    List<FacetResult> results = new ArrayList<FacetResult>();
    for (FacetResult fres : sampleRes) {
      // for sure fres is not null because this is guaranteed by the delegee.
      FacetRequest fr = fres.getFacetRequest();
      PartitionsFacetResultsHandler frh = createFacetResultsHandler(fr, createOrdinalValueResolver(fr));
      if (samplerFixer != null) {
        // fix the result of current request
        samplerFixer.fixResult(docids, fres, samplingRatio);

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    params.setOversampleFactor(5);
    params.setSamplingThreshold(60);
    params.setSampleRatio(0.1);
    
    FacetResult res = searchWithFacets(r, tr, fsp, params);
    FacetRequest req = res.getFacetRequest();
    assertEquals(facetRequest, req);
    
    FacetResultNode rootNode = res.getFacetResultNode();
    
    // Each node below root should also have sub-results as the requested depth was '2'

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          "It is only valid to call this method with result obtained for a " +
          "facet request created through sampler.overSamlpingSearchParams()",
          e);
    }
    
    FacetRequest origFrq = sampledFreq.orig;


    FacetResultNode trimmedRootNode = facetResult.getFacetResultNode();
    trimSubResults(trimmedRootNode, origFrq.numResults);
    
    return new FacetResult(origFrq, trimmedRootNode, facetResult.getNumValidDescendants());

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    params.setOversampleFactor(5);
    params.setSamplingThreshold(60);
    params.setSampleRatio(0.1);
    
    FacetResult res = searchWithFacets(r, tr, fsp, params);
    FacetRequest req = res.getFacetRequest();
    assertEquals(facetRequest, req);
    
    FacetResultNode rootNode = res.getFacetResultNode();
    
    // Each node below root should also have sub-results as the requested depth was '2'

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          "It is only valid to call this method with result obtained for a " +
          "facet request created through sampler.overSamlpingSearchParams()",
          e);
    }
    
    FacetRequest origFrq = sampledFreq.orig;


    FacetResultNode trimmedRootNode = facetResult.getFacetResultNode();
    trimSubResults(trimmedRootNode, origFrq.numResults);
    
    return new FacetResult(origFrq, trimmedRootNode, facetResult.getNumValidDescendants());

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Related Classes of org.apache.lucene.facet.search.FacetRequest

org.apache.lucene.facet.FacetTestBase

org.apache.lucene.facet.sampling.OversampleWithDepthTest

org.apache.lucene.facet.sampling.Sampler

org.apache.lucene.facet.sampling.SamplingAccumulator

org.apache.lucene.facet.sampling.SamplingWrapper

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