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A library for incremental automata construction. This artifact contains algorithms for incrementally constructing DFAs (prefix-closed and non-prefix-closed), Mealy machines, and Moore machines from a finite, incrementally growing set of example inputs/outputs.

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/* Copyright (C) 2013 TU Dortmund
 * This file is part of AutomataLib, http://www.automatalib.net/.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.automatalib.incremental.mealy.dag;


public final class State {
	
	private int numIncoming;
	private final StateSignature signature;
	
	public State(StateSignature signature) {
		this.signature = signature;
	}
	
	public void increaseIncoming() {
		numIncoming++;
	}
	
	public void decreaseIncoming() {
		numIncoming--;
	}
	
	public int getNumIncoming() {
		return numIncoming;
	}
	
	public boolean isConfluence() {
		return (numIncoming > 1);
	}
	
	public State getSuccessor(int idx) {
		return signature.successors[idx];
	}
	
	public Object getOutput(int idx) {
		return signature.outputs[idx];
	}
	
	public StateSignature getSignature() {
		return signature;
	}
}