001/*
002MIT License
003
004Copyright (c) 2020 earlygrey
005
006Permission is hereby granted, free of charge, to any person obtaining a copy
007of this software and associated documentation files (the "Software"), to deal
008in the Software without restriction, including without limitation the rights
009to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
010copies of the Software, and to permit persons to whom the Software is
011furnished to do so, subject to the following conditions:
012
013The above copyright notice and this permission notice shall be included in all
014copies or substantial portions of the Software.
015
016THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
017IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
018FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
019AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
020LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
021OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
022SOFTWARE.
023 */
024package squidpony.squidai.graph;
025
026import java.io.Serializable;
027
028/**
029 * Abstract superclass of any connection between nodes on a graph.
030 * @param <V> the vertex type; often {@link squidpony.squidmath.Coord}
031 * @author earlygrey
032 */
033public abstract class Edge<V> implements Serializable {
034    public Edge(){}
035
036    public abstract V getA();
037    public abstract V getB();
038
039    public abstract float getWeight();
040    public abstract void setWeight(float weight);
041
042    protected abstract Node<V> getInternalNodeA();
043    protected abstract Node<V> getInternalNodeB();
044
045    protected abstract void set(Node<V> a, Node<V> b, float weight);
046}