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## org.apache.lucene.util.fst
Class Util.TopNSearcher<T>

    java.lang.Object
      org.apache.lucene.util.fst.Util.TopNSearcher<T>

Enclosing class:
  Util

    public static class Util.TopNSearcher<T>

extends Object

Utility class to find top N shortest paths from start point(s).

Constructor Summary
`Util.TopNSearcher(FST<T> fst, int topN, int maxQueueDepth, Comparator<T> comparator)`

Method Summary
`protected boolean` | `acceptResult(IntsRef input, T output)`
`void` | `addStartPaths(FST.Arc<T> node, T startOutput, boolean allowEmptyString, IntsRef input)` Adds all leaving arcs, including 'finished' arc, if the node is final, from this node into the queue.
`Util.MinResult<T>[]` | `search()`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### Util.TopNSearcher

    public Util.TopNSearcher(FST<T> fst,
                             int topN,
                             int maxQueueDepth,
                             Comparator<T> comparator)

Method Detail

### addStartPaths

    public void addStartPaths(FST.Arc<T> node,
                              T startOutput,
                              boolean allowEmptyString,
                              IntsRef input)
                       throws IOException

  Adds all leaving arcs, including 'finished' arc, if the node is final, from this node into the queue.

  Throws:
    `IOException`

### search

    public Util.MinResult<T>[] search()
                               throws IOException

  Throws:
    `IOException`

### acceptResult

    protected boolean acceptResult(IntsRef input,
                                   T output)

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