| /* |
| * Copyright 2014-2015 Open Networking Laboratory |
| * |
| * 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 org.onosproject.net.topology; |
| |
| import org.onosproject.net.Description; |
| |
| import com.google.common.collect.ImmutableSet; |
| |
| /** |
| * Describes attribute(s) of a network graph. |
| */ |
| public interface GraphDescription extends Description { |
| |
| /** |
| * Returns the creation timestamp of the graph description. This is |
| * expressed in system nanos to allow proper sequencing. |
| * |
| * @return graph description creation timestamp |
| */ |
| long timestamp(); |
| |
| /** |
| * Returns the creation timestamp of the graph description. This is |
| * expressed in system millis to allow proper date and time formatting. |
| * |
| * @return graph description creation timestamp in millis |
| */ |
| long creationTime(); |
| |
| /** |
| * Returns the set of topology graph vertexes. |
| * |
| * @return set of graph vertexes |
| */ |
| ImmutableSet<TopologyVertex> vertexes(); |
| |
| /** |
| * Returns the set of topology graph edges. |
| * |
| * @return set of graph edges |
| */ |
| ImmutableSet<TopologyEdge> edges(); |
| |
| } |