1 /*******************************************************************************
2 * Copyright (c) 2015 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 * Semantum Oy - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.browsing.ui.model.queries;
14 import java.util.Collections;
16 import org.simantics.browsing.ui.NodeContext;
17 import org.simantics.browsing.ui.model.actions.ActionBrowseContext;
18 import org.simantics.browsing.ui.model.browsecontexts.ActionBrowseContextRequest;
19 import org.simantics.db.ReadGraph;
20 import org.simantics.db.common.procedure.adapter.TransientCacheAsyncListener;
21 import org.simantics.db.common.request.UnaryRead;
22 import org.simantics.db.exception.DatabaseException;
23 import org.simantics.project.ontology.ProjectResource;
26 * @author Tuukka Lehtonen
29 public class IsNodeContextModifiable extends UnaryRead<NodeContext, Boolean> {
31 public IsNodeContextModifiable(NodeContext context) {
36 public Boolean perform(ReadGraph graph) throws DatabaseException {
37 ActionBrowseContext defaultContext = graph.syncRequest(
38 new ActionBrowseContextRequest(Collections.singleton(ProjectResource.getInstance(graph).ProjectActionContext)),
39 TransientCacheAsyncListener.<ActionBrowseContext>instance());
40 ActionBrowseContext browseContext = ActionBrowseContext.get(graph, parameter, defaultContext);
41 return browseContext != null && browseContext.canRename(graph, parameter);