/*
 *
 *
 * 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.usergrid.persistence.index;

/**
 * An edge to perform indexing on.
 */
/**
 *source node - edge - target node =>
 IndexEdge => sourceNode, edgeType, timestamp, NodeType we're indexing (TARGET)
 SearchEdge = > sourceNode, edgeType, NodeType (Target)

 */
public interface IndexEdge extends SearchEdge {

    /**
     * Get the timestamp on this edge
     * @return
     */
    long getTimestamp();

}