## Uses of Class
org.apache.lucene.util.fst.FST.Arc

- Packages that use FST.Arc
  Package | Description
  --- | ---
  org.apache.lucene.util.fst | Finite state transducers

- - ### Uses of FST.Arc in org.apache.lucene.util.fst

    Methods in org.apache.lucene.util.fst that return FST.Arc
    Modifier and Type | Method and Description
    --- | ---
    `FST.Arc<T>` | FST.Arc.`copyFrom(FST.Arc<T> other)` Returns this
    `FST.Arc<T>` | FST.`findTargetArc(int labelToMatch, FST.Arc<T> follow, FST.Arc<T> arc, FST.BytesReader in)` Finds an arc leaving the incoming arc, replacing the arc in place.
    `FST.Arc<T>` | FST.`getFirstArc(FST.Arc<T> arc)` Fills virtual 'start' arc, ie, an empty incoming arc to the FST's start node
    `static <T> FST.Arc<T>` | Util.`readCeilArc(int label, FST<T> fst, FST.Arc<T> follow, FST.Arc<T> arc, FST.BytesReader in)` Reads the first arc greater or equal that the given label into the provided arc in place and returns it iff found, otherwise return `null`.
    `FST.Arc<T>` | FST.`readFirstRealTargetArc(long node, FST.Arc<T> arc, FST.BytesReader in)`
    `FST.Arc<T>` | FST.`readFirstTargetArc(FST.Arc<T> follow, FST.Arc<T> arc, FST.BytesReader in)` Follow the `follow` arc and read the first arc of its target; this changes the provided `arc` (2nd arg) in-place and returns it.
    `FST.Arc<T>` | FST.`readLastTargetArc(FST.Arc<T> follow, FST.Arc<T> arc, FST.BytesReader in)` Follows the `follow` arc and reads the last arc of its target; this changes the provided `arc` (2nd arg) in-place and returns it.
    `FST.Arc<T>` | FST.`readNextArc(FST.Arc<T> arc, FST.BytesReader in)` In-place read; returns the arc.
    `FST.Arc<T>` | FST.`readNextRealArc(FST.Arc<T> arc, FST.BytesReader in)` Never returns null, but you should never call this if arc.isLast() is true.

    Methods in org.apache.lucene.util.fst with parameters of type FST.Arc
    Modifier and Type | Method and Description
    --- | ---
    `void` | Util.TopNSearcher.`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.
    `FST.Arc<T>` | FST.Arc.`copyFrom(FST.Arc<T> other)` Returns this
    `FST.Arc<T>` | FST.`findTargetArc(int labelToMatch, FST.Arc<T> follow, FST.Arc<T> arc, FST.BytesReader in)` Finds an arc leaving the incoming arc, replacing the arc in place.
    `FST.Arc<T>` | FST.`findTargetArc(int labelToMatch, FST.Arc<T> follow, FST.Arc<T> arc, FST.BytesReader in)` Finds an arc leaving the incoming arc, replacing the arc in place.
    `static IntsRef` | Util.`getByOutput(FST<Long> fst, long targetOutput, FST.BytesReader in, FST.Arc<Long> arc, FST.Arc<Long> scratchArc, IntsRef result)` Expert: like `Util.getByOutput(FST, long)` except reusing BytesReader, initial and scratch Arc, and result.
    `static IntsRef` | Util.`getByOutput(FST<Long> fst, long targetOutput, FST.BytesReader in, FST.Arc<Long> arc, FST.Arc<Long> scratchArc, IntsRef result)` Expert: like `Util.getByOutput(FST, long)` except reusing BytesReader, initial and scratch Arc, and result.
    `FST.Arc<T>` | FST.`getFirstArc(FST.Arc<T> arc)` Fills virtual 'start' arc, ie, an empty incoming arc to the FST's start node
    `static <T> FST.Arc<T>` | Util.`readCeilArc(int label, FST<T> fst, FST.Arc<T> follow, FST.Arc<T> arc, FST.BytesReader in)` Reads the first arc greater or equal that the given label into the provided arc in place and returns it iff found, otherwise return `null`.
    `static <T> FST.Arc<T>` | Util.`readCeilArc(int label, FST<T> fst, FST.Arc<T> follow, FST.Arc<T> arc, FST.BytesReader in)` Reads the first arc greater or equal that the given label into the provided arc in place and returns it iff found, otherwise return `null`.
    `FST.Arc<T>` | FST.`readFirstRealTargetArc(long node, FST.Arc<T> arc, FST.BytesReader in)`
    `FST.Arc<T>` | FST.`readFirstTargetArc(FST.Arc<T> follow, FST.Arc<T> arc, FST.BytesReader in)` Follow the `follow` arc and read the first arc of its target; this changes the provided `arc` (2nd arg) in-place and returns it.
    `FST.Arc<T>` | FST.`readFirstTargetArc(FST.Arc<T> follow, FST.Arc<T> arc, FST.BytesReader in)` Follow the `follow` arc and read the first arc of its target; this changes the provided `arc` (2nd arg) in-place and returns it.
    `FST.Arc<T>` | FST.`readLastTargetArc(FST.Arc<T> follow, FST.Arc<T> arc, FST.BytesReader in)` Follows the `follow` arc and reads the last arc of its target; this changes the provided `arc` (2nd arg) in-place and returns it.
    `FST.Arc<T>` | FST.`readLastTargetArc(FST.Arc<T> follow, FST.Arc<T> arc, FST.BytesReader in)` Follows the `follow` arc and reads the last arc of its target; this changes the provided `arc` (2nd arg) in-place and returns it.
    `FST.Arc<T>` | FST.`readNextArc(FST.Arc<T> arc, FST.BytesReader in)` In-place read; returns the arc.
    `int` | FST.`readNextArcLabel(FST.Arc<T> arc, FST.BytesReader in)` Peeks at next arc's label; does not alter arc.
    `FST.Arc<T>` | FST.`readNextRealArc(FST.Arc<T> arc, FST.BytesReader in)` Never returns null, but you should never call this if arc.isLast() is true.
    `static <T> Util.MinResult<T>[]` | Util.`shortestPaths(FST<T> fst, FST.Arc<T> fromNode, T startOutput, Comparator<T> comparator, int topN, boolean allowEmptyString)` Starting from node, find the top N min cost completions to a final node.
    `static <T> boolean` | FST.`targetHasArcs(FST.Arc<T> arc)` returns true if the node at this address has any outgoing arcs

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