Example usage for org.apache.lucene.util.automaton Operations union

Introduction

In this page you can find the example usage for org.apache.lucene.util.automaton Operations union.

Prototype

public static Automaton union(Collection<Automaton> l) 

Source Link

Document

Returns an automaton that accepts the union of the languages of the given automata.

Usage

From source file:org.codelibs.elasticsearch.common.regex.Regex.java

License:Apache License

/**
 * Return an Automaton that matches the union of the provided patterns.
 *///from  www .ja v  a2s.  co m
public static Automaton simpleMatchToAutomaton(String... patterns) {
    if (patterns.length < 1) {
        throw new IllegalArgumentException("There must be at least one pattern, zero given");
    }
    List<Automaton> automata = new ArrayList<>();
    for (String pattern : patterns) {
        automata.add(simpleMatchToAutomaton(pattern));
    }
    return Operations.union(automata);
}

---