tests/org.simantics.db.tests/src/org/simantics/db/tests/api/request/misc/RequestParentTest6.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   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
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.db.tests.api.request.misc;
  13
  14 import java.util.Set;
  15
  16 import org.junit.Test;
  17 import org.simantics.db.AsyncReadGraph;
  18 import org.simantics.db.ReadGraph;
  19 import org.simantics.db.Resource;
  20 import org.simantics.db.Session;
  21 import org.simantics.db.exception.DatabaseException;
  22 import org.simantics.db.impl.query.CacheEntry;
  23 import org.simantics.db.impl.service.QueryDebug;
  24 import org.simantics.db.procedure.AsyncMultiListener;
  25 import org.simantics.db.request.Read;
  26 import org.simantics.db.testing.base.SimpleBase;
  27 import org.simantics.layer0.Layer0;
  28
  29 public class RequestParentTest6 extends SimpleBase {
  30
  31         @Test
  32         public void test() throws Exception {
  33
  34                 Session session = getSession();
  35
  36                 QueryDebug debug = session.getService(QueryDebug.class);
  37
  38         class Request implements Read<Object> {
  39
  40             @Override
  41             public Object perform(ReadGraph graph) throws DatabaseException {
  42                 return new Object();
  43             }
  44
  45         }
  46
  47         final Request request = new Request();
  48
  49         session.syncRequest(new TestAsyncReadRequest() {
  50
  51             @Override
  52             public void run(AsyncReadGraph graph) throws Throwable {
  53                 Layer0 l0 = Layer0.getInstance(graph);
  54                 graph.forEachObject(rl, l0.InstanceOf, new AsyncMultiListener<Resource>() {
  55
  56                     @Override
  57                     public void exception(AsyncReadGraph graph, Throwable t) {
  58                     }
  59
  60                     @Override
  61                     public void execute(AsyncReadGraph graph, Resource result) {
  62                         graph.asyncRequest(request);
  63                     }
  64
  65                     @Override
  66                     public boolean isDisposed() {
  67                         return false;
  68                     }
  69
  70                     @Override
  71                     public void finished(AsyncReadGraph graph) {
  72                     }
  73
  74                 });
  75
  76             }
  77
  78         });
  79
  80                 Set<CacheEntry> parents = debug.getParents(request);
  81                 if(!parents.isEmpty())fail("Request2 should not have parents");
  82
  83         }
  84
  85 }