AutomatonToTokenStream (Lucene 9.10.0 core API)

java.lang.Object
- org.apache.lucene.analysis.AutomatonToTokenStream

public class AutomatonToTokenStream
extends Object

Converts an Automaton into a TokenStream.

- Method Summary
  
  All Methods Static Methods Concrete Methods
  Modifier and Type Method Description
  
  static TokenStream toTokenStream(Automaton automaton)
  converts an automaton into a TokenStream.
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - toTokenStream
```
public static TokenStream toTokenStream(Automaton automaton)
```
    converts an automaton into a TokenStream. This is done by first Topo sorting the nodes in the Automaton. Nodes that have the same distance from the start are grouped together to form the position nodes for the TokenStream. The resulting TokenStream releases edges from the automaton as tokens in order from the position nodes. This requires the automaton be a finite DAG.
    
    Parameters:
    
    automaton - automaton to convert. Must be a finite DAG.
    
    Returns:
    
    TokenStream representation of automaton.