Example usage for org.apache.lucene.util.automaton Automaton getNextTransition

Introduction

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

Prototype

public void getNextTransition(Transition t) 

Source Link

Document

Iterate to the next transition after the provided one

Usage

From source file:org.getopt.luke.Luke.java

License:Apache License

private void addAutomaton(Object parent, Automaton a) {

    Object n = create("node");
    setString(n, "text", "Automaton: " + a != null ? a.toDot() : "null");
    add(parent, n);//  www. j a va 2s. c om

    Transition t = new Transition();

    for (int state = 0; state < a.getNumStates(); state++) {
        Object n1 = create("node");
        add(n, n1);

        StringBuilder msg = new StringBuilder();
        msg.append(String.valueOf(state));

        // initial state
        if (state == 0) {
            msg.append(" INITIAL");
        }

        msg.append(a.isAccept(state) ? " [accept]" : " [reject]");

        int numTransitions = a.initTransition(state, t);

        msg.append(", " + numTransitions + " transitions");
        setString(n1, "text", msg.toString());

        //System.out.println("toDot: state " + state + " has " + numTransitions + " transitions; t.nextTrans=" + t.transitionUpto);
        for (int i = 0; i < numTransitions; i++) {
            a.getNextTransition(t);

            Object n2 = create("node");
            add(n1, n2);
            setString(n2, "text", t.toString());
            assert t.max >= t.min;
        }
    }
}

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