/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.openjpa.persistence.cascade;

import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;

@Entity
public class Edge {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private long oid;

    @ManyToOne(cascade = CascadeType.ALL)
    @JoinColumn(name = "SOURCE_OID")
    private Vertex source;

    @ManyToOne(cascade = CascadeType.ALL)
    @JoinColumn(name = "TARGET_OID")
    private Vertex target;

    protected Edge() {
    }

    Edge( Vertex src ) {
        this();
        this.source = src;
    }

    public void setTarget( Vertex node ) {
        this.target = node;
    }

	public long getOid() {
		return oid;
	}
}