| /* |
| * Copyright 2014-present Open Networking Foundation |
| * |
| * 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; |
| |
| import org.onlab.graph.Weight; |
| |
| import java.util.List; |
| |
| /** |
| * Representation of a contiguous directed path in a network. Path comprises |
| * of a sequence of links, where adjacent links must share the same device, |
| * meaning that destination of the source of one link must coincide with the |
| * destination of the previous link. Path weight (cost) is an aggregation |
| * of the weights of the links the path consists of. |
| */ |
| public interface Path extends Link { |
| |
| /** |
| * Returns sequence of links comprising the path. |
| * |
| * @return list of links |
| */ |
| List<Link> links(); |
| |
| /** |
| * Returns the path cost as a unit-less value. |
| * |
| * @return unit-less path cost |
| * |
| * @deprecated in Junco (1.9.0), use weight() instead |
| */ |
| @Deprecated |
| double cost(); |
| |
| /** |
| * Returns the path cost as an weight instance. |
| * |
| * @return weight path cost |
| */ |
| Weight weight(); |
| |
| } |