--- /dev/null
+/*******************************************************************************
+ * 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 java.util.ListIterator;
+
+import org.junit.Test;
+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.common.utils.OrderedSetUtils;
+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 UndoTest02 extends ExistingDatabaseTest {
+ private boolean DEBUG = false;
+ @Test
+ public void testUndo2() throws Exception {
+
+ Session session = getSession();
+ final UndoRedoSupport support = session.getService(UndoRedoSupport.class);
+
+ final DataContainer<Resource> subject = new DataContainer<Resource>();
+ final int size = 3;
+ try {
+ session.syncRequest(new WriteRequest() {
+ @Override
+ public void perform(WriteGraph g) throws DatabaseException {
+ Layer0 b = Layer0.getInstance(g);
+ Resource l = OrderedSetUtils.create(g, b.Type);
+ subject.set(l);
+ for (int i=0; i<size; ++i) {
+ Resource el = g.newResource();
+ g.claim(el, b.InstanceOf, null, b.Type);
+ OrderedSetUtils.add(g, l, el);
+ }
+ }
+ });
+ } catch (Throwable e) {
+ fail("Write transaction threw an unknown exception ", e);
+ }
+
+ try {
+ session.syncRequest(new ReadRequest() {
+ @Override
+ public void run(ReadGraph g) throws DatabaseException {
+ Resource l = subject.get();
+ ListIterator<Resource> it = OrderedSetUtils.iterator(g, l);
+ int count = 0;
+ while (it.hasNext()) {
+ Resource r = it.next();
+ if (DEBUG)
+ System.out.println("Resource " + r);
+ ++count;
+ }
+ if (size != count)
+ fail("Number of ordered set elements doesn't match!");
+ }
+ });
+ } catch (Throwable e) {
+ fail("Read transaction threw an unexpected exception ", e);
+ }
+
+ try {
+ session.syncRequest(new WriteRequest() {
+ @Override
+ public void perform(WriteGraph g) throws DatabaseException {
+ g.markUndoPoint();
+ Layer0 b = Layer0.getInstance(g);
+ Resource l = subject.get();
+ Resource el = g.newResource();
+ g.claim(el, b.InstanceOf, null, b.Type);
+ OrderedSetUtils.add(g, l, el);
+ }
+ });
+ } catch (Throwable e) {
+ fail("Write transaction threw an unknown exception ", e);
+ }
+
+ try {
+ session.syncRequest(new ReadRequest() {
+ @Override
+ public void run(ReadGraph g) throws DatabaseException {
+ Resource l = subject.get();
+ ListIterator<Resource> it = OrderedSetUtils.iterator(g, l);
+ int count = 0;
+ while (it.hasNext()) {
+ Resource r = it.next();
+ if (DEBUG)
+ System.out.println("Resource " + r);
+ ++count;
+ }
+ if (size+1 != count)
+ fail("Number of ordered set elements doesn't match!");
+ }
+ });
+ } catch (Throwable e) {
+ fail("Read transaction threw an unexpected exception ", e);
+ }
+ support.undo(session, 1);
+
+ try {
+ session.syncRequest(new ReadRequest() {
+ @Override
+ public void run(ReadGraph g) throws DatabaseException {
+ Resource l = subject.get();
+ ListIterator<Resource> it = OrderedSetUtils.iterator(g, l);
+ int count = 0;
+ while (it.hasNext()) {
+ Resource r = it.next();
+ if (DEBUG)
+ System.out.println("Resource " + r);
+ ++count;
+ }
+ if (size != count)
+ fail("Number of ordered set elements doesn't match! expected=" + size + " got=" + count);
+ }
+ });
+ } catch (Throwable e) {
+ fail("Read transaction threw an unexpected exception ", e);
+ }
+
+ }
+
+}