bundles/org.simantics.layer0.utils/src/org/simantics/layer0/utils/instantiation/MultiInstance.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.layer0.utils.instantiation;
  13
  14 import java.util.Collection;
  15
  16 import org.simantics.db.Resource;
  17
  18 /**
  19  * Helper class for creating multi-instances.
  20  * Note : This does NOT check conflicting requirements.
  21  *
  22  * @author Marko Luukkainen <Marko.Luukkainen@vtt.fi>
  23  *
  24  */
  25 public class MultiInstance extends Instance {
  26
  27         public MultiInstance(Collection<Instance> instances, Resource instanceOf) {
  28                 for (Instance i : instances) {
  29                         if (i.equals != null)
  30                                 throw new UnsupportedOperationException("Don't know how to handle equal instances.");
  31                         for (RelatedInstance ri : i.relatedInstances) {
  32                                 boolean contains = false;
  33                                 for (RelatedInstance cri : relatedInstances) {
  34                                         if (cri.relation == ri.relation &&
  35                                                 cri.relation != instanceOf) {
  36                                                 contains = true;
  37                                                 break;
  38                                         }
  39                                 }
  40                                 if(!contains) {
  41                                         relatedInstances.add(ri);
  42                                 }
  43                         }
  44                 }
  45         }
  46
  47 }