2 * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
3 * Copyright (C) $$Year-Rel$$ The Jalview Authors
5 * This file is part of Jalview.
7 * Jalview is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation, either version 3
10 * of the License, or (at your option) any later version.
12 * Jalview is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty
14 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
19 * The Jalview Authors are detailed in the 'AUTHORS' file.
21 package jalview.datamodel.features;
23 import java.util.HashMap;
27 * A singleton to hold metadata about feature attributes, keyed by a unique
28 * feature source identifier
33 public class FeatureSources
35 private static FeatureSources instance = new FeatureSources();
37 private Map<String, FeatureSourceI> sources;
40 * Answers the singleton instance of this class
44 public static FeatureSources getInstance()
49 private FeatureSources()
51 sources = new HashMap<>();
55 * Answers the FeatureSource with the given unique identifier, or null if not
61 public FeatureSourceI getSource(String sourceId)
63 return sources.get(sourceId);
67 * Adds the given source under the given key. This will replace any existing
68 * source with the same id, it is the caller's responsibility to ensure keys
69 * are unique if necessary.
74 public void addSource(String sourceId, FeatureSource source)
76 sources.put(sourceId, source);