Example usage for org.apache.lucene.facet.taxonomy TaxonomyFacetSumIntAssociations TaxonomyFacetSumIntAssociations

Introduction

In this page you can find the example usage for org.apache.lucene.facet.taxonomy TaxonomyFacetSumIntAssociations TaxonomyFacetSumIntAssociations.

Prototype

public TaxonomyFacetSumIntAssociations(String indexFieldName, TaxonomyReader taxoReader, FacetsConfig config,
        FacetsCollector fc) throws IOException 

Source Link

Document

Create TaxonomyFacetSumIntAssociations against the specified index field.

Usage

From source file:com.czw.search.lucene.example.facet.AssociationsFacetsExample.java

License:Apache License

/** User runs a query and aggregates facets by summing their association values. */
private List<FacetResult> sumAssociations() throws IOException {
    DirectoryReader indexReader = DirectoryReader.open(indexDir);
    IndexSearcher searcher = new IndexSearcher(indexReader);
    TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);

    FacetsCollector fc = new FacetsCollector();

    // MatchAllDocsQuery is for "browsing" (counts facets
    // for all non-deleted docs in the index); normally
    // you'd use a "normal" query:
    FacetsCollector.search(searcher, new MatchAllDocsQuery(), 10, fc);

    Facets tags = new TaxonomyFacetSumIntAssociations("$tags", taxoReader, config, fc);
    Facets genre = new TaxonomyFacetSumFloatAssociations("$genre", taxoReader, config, fc);

    // Retrieve results
    List<FacetResult> results = new ArrayList<>();
    results.add(tags.getTopChildren(10, "tags"));
    results.add(genre.getTopChildren(10, "genre"));

    indexReader.close();/* w w  w .ja v a 2  s.  com*/
    taxoReader.close();

    return results;
}

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From source file:com.zghw.lucene.demo.AssociationsFacetsExample.java

License:Apache License

/** User runs a query and aggregates facets by summing their association values. */
private List<FacetResult> sumAssociations() throws IOException {
    DirectoryReader indexReader = DirectoryReader.open(indexDir);
    IndexSearcher searcher = new IndexSearcher(indexReader);
    TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);

    FacetsCollector fc = new FacetsCollector();

    // MatchAllDocsQuery is for "browsing" (counts facets
    // for all non-deleted docs in the index); normally
    // you'd use a "normal" query:
    FacetsCollector.search(searcher, new MatchAllDocsQuery(), 10, fc);

    Facets tags = new TaxonomyFacetSumIntAssociations("$tags", taxoReader, config, fc);
    Facets genre = new TaxonomyFacetSumFloatAssociations("$genre", taxoReader, config, fc);

    // Retrieve results
    List<FacetResult> results = new ArrayList<FacetResult>();
    results.add(tags.getTopChildren(10, "tags"));
    results.add(genre.getTopChildren(10, "genre"));

    indexReader.close();//  w w  w  .  j av a 2s . c  o  m
    taxoReader.close();

    return results;
}

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