Package org.apache.lucene.facet
Class MultiFacets
- java.lang.Object
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- org.apache.lucene.facet.Facets
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- org.apache.lucene.facet.MultiFacets
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public class MultiFacets extends Facets
Maps specified dims to provided Facets impls; else, uses the default Facets impl.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description List<FacetResult>
getAllDims(int topN)
Returns topN labels for any dimension that had hits, sorted by the number of hits that dimension matched; this is used for "sparse" faceting, where many different dimensions were indexed, for example depending on the type of document.Number
getSpecificValue(String dim, String... path)
Return the count or value for a specific path.FacetResult
getTopChildren(int topN, String dim, String... path)
Returns the topN child labels under the specified path.
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Method Detail
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getTopChildren
public FacetResult getTopChildren(int topN, String dim, String... path) throws IOException
Description copied from class:Facets
Returns the topN child labels under the specified path. Returns null if the specified path doesn't exist or if this dimension was never seen.- Specified by:
getTopChildren
in classFacets
- Throws:
IOException
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getSpecificValue
public Number getSpecificValue(String dim, String... path) throws IOException
Description copied from class:Facets
Return the count or value for a specific path. Returns -1 if this path doesn't exist, else the count.- Specified by:
getSpecificValue
in classFacets
- Throws:
IOException
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getAllDims
public List<FacetResult> getAllDims(int topN) throws IOException
Description copied from class:Facets
Returns topN labels for any dimension that had hits, sorted by the number of hits that dimension matched; this is used for "sparse" faceting, where many different dimensions were indexed, for example depending on the type of document.- Specified by:
getAllDims
in classFacets
- Throws:
IOException
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