# 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

Fields in org.apache.lucene.util.fst declared as FST.Arc
Modifier and Type
Field
Description
`FST.Arc<T>`
Util.FSTPath.`arc`
Holds the last arc appended to this path
`protected FST.Arc<T>[]`
FSTEnum.`arcs`
`protected FST.Arc<T>[]`
FSTEnum.`arcs`
Methods in org.apache.lucene.util.fst that return FST.Arc
Modifier and Type
Method
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
`FST.Arc<T>`
FST.`readArcByContinuous(FST.Arc<T> arc, FST.BytesReader in, int rangeIndex)`
Reads a Continuous node arc, with the provided index in the label range.
`FST.Arc<T>`
FST.`readArcByDirectAddressing(FST.Arc<T> arc, FST.BytesReader in, int rangeIndex)`
Reads a present direct addressing node arc, with the provided index in the label range.
`FST.Arc<T>`
FST.`readArcByIndex(FST.Arc<T> arc, FST.BytesReader in, int idx)`
`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 than the given label into the provided arc in place and returns it iff found, otherwise return `null`.
`FST.Arc<T>`
FST.`readFirstRealTargetArc(long nodeAddress, 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.`readLastArcByContinuous(FST.Arc<T> arc, FST.BytesReader in)`
Reads the last arc of a continuous node.
`FST.Arc<T>`
FST.`readLastArcByDirectAddressing(FST.Arc<T> arc, FST.BytesReader in)`
Reads the last arc of a direct addressing node.
`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
Description
`void`
Util.TopNSearcher.`addStartPaths(FST.Arc<T> node, T startOutput, boolean allowEmptyString, IntsRefBuilder input)`
`void`
Util.TopNSearcher.`addStartPaths(FST.Arc<T> node, T startOutput, boolean allowEmptyString, IntsRefBuilder input, float boost, CharSequence context, int payload)`
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.`getFirstArc(FST.Arc<T> arc)`
Fills virtual 'start' arc, ie, an empty incoming arc to the FST's start node
`FST.Arc<T>`
FST.`readArcByContinuous(FST.Arc<T> arc, FST.BytesReader in, int rangeIndex)`
Reads a Continuous node arc, with the provided index in the label range.
`FST.Arc<T>`
FST.`readArcByDirectAddressing(FST.Arc<T> arc, FST.BytesReader in, int rangeIndex)`
Reads a present direct addressing node arc, with the provided index in the label range.
`FST.Arc<T>`
FST.`readArcByIndex(FST.Arc<T> arc, FST.BytesReader in, int idx)`
`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 than the given label into the provided arc in place and returns it iff found, otherwise return `null`.
`FST.Arc<T>`
FST.`readFirstRealTargetArc(long nodeAddress, 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.`readLastArcByContinuous(FST.Arc<T> arc, FST.BytesReader in)`
Reads the last arc of a continuous node.
`FST.Arc<T>`
FST.`readLastArcByDirectAddressing(FST.Arc<T> arc, FST.BytesReader in)`
Reads the last arc of a direct addressing node.
`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.
`static <T> Util.TopResults<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