pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.4.0 / lucene / contrib / facet / src / java / org / apache / lucene / facet / search / AdaptiveFacetsAccumulator.java

diff --git a/lucene-java-3.4.0/lucene/contrib/facet/src/java/org/apache/lucene/facet/search/AdaptiveFacetsAccumulator.java b/lucene-java-3.4.0/lucene/contrib/facet/src/java/org/apache/lucene/facet/search/AdaptiveFacetsAccumulator.java
deleted file mode 100644 (file)
index 81c6c4e..0000000
--- a/lucene-java-3.4.0/lucene/contrib/facet/src/java/org/apache/lucene/facet/search/AdaptiveFacetsAccumulator.java
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@@ -1,116 +0,0 @@
-package org.apache.lucene.facet.search;
-
-import java.io.IOException;
-import java.util.List;
-
-import org.apache.lucene.index.IndexReader;
-
-import org.apache.lucene.facet.search.params.FacetSearchParams;
-import org.apache.lucene.facet.search.results.FacetResult;
-import org.apache.lucene.facet.search.results.FacetResultNode;
-import org.apache.lucene.facet.search.sampling.Sampler;
-import org.apache.lucene.facet.search.sampling.SamplingAccumulator;
-import org.apache.lucene.facet.taxonomy.TaxonomyReader;
-
-/**
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * {@link FacetsAccumulator} whose behavior regarding complements, sampling,
- * etc. is not set up front but rather is determined at accumulation time
- * according to the statistics of the accumulated set of documents and the
- * index.
- * <p>
- * Note: Sampling accumulation (Accumulation over a sampled-set of the results),
- * does not guarantee accurate values for
- * {@link FacetResult#getNumValidDescendants()} &
- * {@link FacetResultNode#getResidue()}.
- * 
- * @lucene.experimental
- */
-public final class AdaptiveFacetsAccumulator extends StandardFacetsAccumulator {
-  
-  private Sampler sampler = new Sampler();
-
-  /**
-   * Create an {@link AdaptiveFacetsAccumulator} 
-   * @see StandardFacetsAccumulator#StandardFacetsAccumulator(FacetSearchParams, IndexReader, TaxonomyReader)
-   */
-  public AdaptiveFacetsAccumulator(FacetSearchParams searchParams, IndexReader indexReader,
-      TaxonomyReader taxonomyReader) {
-    super(searchParams, indexReader, taxonomyReader);
-  }
-
-  /**
-   * Create an {@link AdaptiveFacetsAccumulator} 
-   * @see StandardFacetsAccumulator#StandardFacetsAccumulator(FacetSearchParams, IndexReader, TaxonomyReader, 
-   *                               IntArrayAllocator, FloatArrayAllocator)
-   */
-  public AdaptiveFacetsAccumulator(FacetSearchParams searchParams, IndexReader indexReader,
-      TaxonomyReader taxonomyReader, IntArrayAllocator intArrayAllocator,
-      FloatArrayAllocator floatArrayAllocator) {
-    super(searchParams, indexReader, taxonomyReader, intArrayAllocator, floatArrayAllocator);
-  }
-
-  /**
-   * Set the sampler.
-   * @param sampler sampler to set
-   */
-  public void setSampler(Sampler sampler) {
-    this.sampler = sampler;
-  }
-  
-  @Override
-  public List<FacetResult> accumulate(ScoredDocIDs docids) throws IOException {
-    FacetsAccumulator delegee = appropriateFacetCountingAccumulator(docids);
-
-    if (delegee == this) {
-      return super.accumulate(docids);
-    }
-
-    return delegee.accumulate(docids);
-  }
-
-  /**
-   * Compute the appropriate facet accumulator to use.
-   * If no special/clever adaptation is possible/needed return this (self).
-   */
-  private FacetsAccumulator appropriateFacetCountingAccumulator(ScoredDocIDs docids) {
-    // Verify that searchPareams permit sampling/complement/etc... otherwise do default
-    if (!mayComplement()) {
-      return this;
-    }
-    
-    // Now we're sure we can use the sampling methods as we're in a counting only mode
-    
-    // Verify that sampling is enabled and required ... otherwise do default
-    if (sampler == null || !sampler.shouldSample(docids)) {
-      return this;
-    }
-    
-    SamplingAccumulator samplingAccumulator = new SamplingAccumulator(sampler, searchParams, indexReader, taxonomyReader);
-    samplingAccumulator.setComplementThreshold(getComplementThreshold());
-    return samplingAccumulator;
-  }
-
-  /**
-   * @return the sampler in effect
-   */
-  public final Sampler getSampler() {
-    return sampler;
-  }
-}
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