+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.db.tests.api.support.undoRedoSupport;
+
+import org.junit.Test;
+import org.simantics.databoard.Bindings;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.Session;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.common.request.ReadRequest;
+import org.simantics.db.common.request.WriteRequest;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.service.UndoRedoSupport;
+import org.simantics.db.testing.base.ExistingDatabaseTest;
+import org.simantics.layer0.Layer0;
+import org.simantics.utils.DataContainer;
+
+/**
+ * Test case description missing!
+ */
+public class UndoTest04 extends ExistingDatabaseTest {
+
+ @Test
+ public void testUndo4() throws Exception {
+
+ Session session = getSession();
+ final UndoRedoSupport support = session.getService(UndoRedoSupport.class);
+ final DataContainer<Resource> subject = new DataContainer<Resource>();
+ final String value = "value";
+ final String newValue = "new value";
+ try {
+ session.syncRequest(new WriteRequest() {
+ @Override
+ public void perform(WriteGraph graph) throws DatabaseException {
+ // Use any non-functional relation
+ Layer0 b = Layer0.getInstance(graph);
+ Resource s = graph.newResource();
+ graph.claim(s, b.InstanceOf, b.Entity);
+ graph.claimValue(s, value);
+ subject.set(s);
+ }
+ });
+ } catch (Throwable e) {
+ fail("Write transaction threw an unknown exception " + e);
+ }
+
+ try {
+ session.syncRequest(new ReadRequest() {
+ @Override
+ public void run(ReadGraph graph) throws DatabaseException {
+ Resource s = subject.get();
+ if (!graph.hasStatement(s))
+ fail("Failed to verify modifications (stm).");
+ String t = graph.getValue(s, Bindings.STRING);
+ if (!t.equals(value))
+ fail("Failed to verify modifications (value).");
+ }
+ });
+ } catch (Throwable e) {
+ fail("Read transaction threw an unexpected exception " + e);
+ }
+
+ try {
+ session.syncRequest(new WriteRequest() {
+ @Override
+ public void perform(WriteGraph graph) throws DatabaseException {
+ graph.markUndoPoint();
+ Resource s = subject.get();
+ graph.claimValue(s, newValue);
+ }
+ });
+ } catch (Throwable e) {
+ fail("Write transaction threw an unknown exception " + e);
+ }
+
+ support.undo(session, 1);
+
+ try {
+ session.syncRequest(new ReadRequest() {
+ @Override
+ public void run(ReadGraph graph) throws DatabaseException {
+ Resource s = subject.get();
+ String t = graph.getValue(s, Bindings.STRING);
+ if (!t.equals(value))
+ fail("Failed to verify modifications (value).");
+ }
+ });
+ } catch (Throwable e) {
+ fail("Read transaction threw an unexpected exception " + e);
+ }
+
+ }
+
+}