| /* |
| * Copyright 2016-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.ui.model.topo; |
| |
| import org.onlab.util.Identifier; |
| |
| /** |
| * Identifier of a topology layout. |
| */ |
| public final class UiTopoLayoutId extends Identifier<String> { |
| |
| private static final String DEFAULT_STR = "root"; |
| |
| /** |
| * Default topology layout identifier. |
| */ |
| public static final UiTopoLayoutId DEFAULT_ID = |
| UiTopoLayoutId.layoutId(DEFAULT_STR); |
| |
| // For serialization |
| private UiTopoLayoutId() { |
| } |
| |
| private UiTopoLayoutId(String value) { |
| super(value); |
| } |
| |
| /** |
| * Returns the layout identifier created from the specified value. |
| * |
| * @param value string value |
| * @return layout identifier |
| */ |
| public static UiTopoLayoutId layoutId(String value) { |
| return new UiTopoLayoutId(value); |
| } |
| |
| /** |
| * Returns true if this is the identifier for the default layout. |
| * |
| * @return true if this is the default layout identifier |
| */ |
| public boolean isDefault() { |
| return DEFAULT_STR.equals(identifier); |
| } |
| } |