Edge.java

/*   Copyright 2012 Tim Garrett, Mothsoft LLC
 *
 *  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 com.mothsoft.alexis.domain;

import java.util.Map;

public class Edge {

    private Node nodeA;
    private Node nodeB;
    private Map<String, String> properties;

    public Edge(Node nodeA, Node nodeB) {
        this.nodeA = nodeA;
        this.nodeB = nodeB;
    }

    public Edge(Node nodeA, Node nodeB, Map<String, String> properties) {
        this.nodeA = nodeA;
        this.nodeB = nodeB;
        this.properties = properties;
    }

    public Node getNodeA() {
        return nodeA;
    }

    public Node getNodeB() {
        return nodeB;
    }

    public Map<String, String> getProperties() {
        return this.properties;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((nodeA == null) ? 0 : nodeA.hashCode());
        result = prime * result + ((nodeB == null) ? 0 : nodeB.hashCode());
        result = prime * result + ((properties == null) ? 0 : properties.hashCode());
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        Edge other = (Edge) obj;
        if (nodeA == null) {
            if (other.nodeA != null)
                return false;
        } else if (!nodeA.equals(other.nodeA))
            return false;
        if (nodeB == null) {
            if (other.nodeB != null)
                return false;
        } else if (!nodeB.equals(other.nodeB))
            return false;
        if (properties == null) {
            if (other.properties != null)
                return false;
        } else if (!properties.equals(other.properties))
            return false;
        return true;
    }

}