1 /*******************************************************************************
2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the Eclipse Public License v1.0
6 * which accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
10 * VTT Technical Research Centre of Finland - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.db.layer0.variable;
14 import java.util.HashMap;
17 import org.simantics.db.ReadGraph;
18 import org.simantics.db.exception.DatabaseException;
19 import org.simantics.db.layer0.exception.MissingVariableException;
21 final public class VariableRepository {
23 final private static HashMap<String, Variable> repository = new HashMap<String, Variable>();
25 public static synchronized void register(String uri, Variable variable) {
26 repository.put(uri, variable);
29 public static synchronized void unregister(String uri) {
30 repository.remove(uri);
33 public static synchronized Variable get(ReadGraph graph, String uri) throws DatabaseException {
34 for(Map.Entry<String, Variable> e : repository.entrySet()) {
35 if(uri.startsWith(e.getKey())) {
36 return e.getValue().browse(graph, uri.substring(e.getKey().length()));
39 throw new MissingVariableException(uri);
42 public static void clear() {