Class TopnOrdinalIterator<T extends Comparable<T>>
java.lang.Object
org.apache.lucene.sandbox.facet.iterators.TopnOrdinalIterator<T>
- All Implemented Interfaces:
OrdinalIterator
public final class TopnOrdinalIterator<T extends Comparable<T>>
extends Object
implements OrdinalIterator
Class that consumes incoming ordinals, sorts them by provided Comparable, and returns first top N
ordinals only.
- WARNING: This API is experimental and might change in incompatible ways in the next release.
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Field Summary
Fields inherited from interface org.apache.lucene.sandbox.facet.iterators.OrdinalIterator
EMPTY, NO_MORE_ORDS -
Constructor Summary
ConstructorsConstructorDescriptionTopnOrdinalIterator(OrdinalIterator sourceOrds, ComparableSupplier<T> comparableSupplier, int topN) Constructor. -
Method Summary
Modifier and TypeMethodDescriptionintnextOrd()Returns next ord orOrdinalIterator.NO_MORE_ORDS.Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitMethods inherited from interface org.apache.lucene.sandbox.facet.iterators.OrdinalIterator
toArray
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Constructor Details
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TopnOrdinalIterator
public TopnOrdinalIterator(OrdinalIterator sourceOrds, ComparableSupplier<T> comparableSupplier, int topN) Constructor.
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Method Details
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nextOrd
Description copied from interface:OrdinalIteratorReturns next ord orOrdinalIterator.NO_MORE_ORDS. *- Specified by:
nextOrdin interfaceOrdinalIterator- Throws:
IOException
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