1 /*******************************************************************************
2 * Copyright (c) 2007, 2010 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 * VTT Technical Research Centre of Finland - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.layer0.utils.instantiation;
14 import java.util.ArrayList;
15 import java.util.List;
17 import org.simantics.db.ReadGraph;
18 import org.simantics.db.Resource;
19 import org.simantics.db.WriteGraph;
20 import org.simantics.db.common.utils.Literals;
21 import org.simantics.db.common.utils.NameUtils;
22 import org.simantics.db.exception.DatabaseException;
25 public class Instance {
27 public static class RelatedInstance {
33 public Resource equals = null;
34 public List<RelatedInstance> relatedInstances = new ArrayList<RelatedInstance>();
35 public Object value = null;
40 public Instance(Resource equals) {
44 public Resource instantiate(WriteGraph graph) throws DatabaseException {
47 Resource ret = graph.newResource();
48 for(RelatedInstance instance : relatedInstances)
49 for(int i=0;i<instance.cardinality;++i)
50 graph.claim(ret, instance.relation,
51 instance.instance.instantiate(graph));
53 graph.claimValue(ret, value);
57 public Resource instantiateUsing(WriteGraph graph, Resource resource) throws DatabaseException {
60 Resource ret = resource;
61 for(RelatedInstance instance : relatedInstances)
62 for(int i=0;i<instance.cardinality;++i)
63 graph.claim(ret, instance.relation,
64 instance.instance.instantiate(graph));
66 graph.claimValue(ret, value);
70 public void print(StringBuilder builder, int indentation, ReadGraph graph) throws DatabaseException {
73 builder.append(NameUtils.getSafeName(graph, equals));
77 builder.append(Literals.literalToString(value));
78 builder.append(" : ");
81 builder.append("* : ");
82 // boolean first = true;
84 for(RelatedInstance instance : relatedInstances) {
86 for(int i=0;i<indentation;++i)
88 builder.append(NameUtils.getSafeName(graph, instance.relation));
89 if(instance.cardinality != 1)
90 builder.append("[" + instance.cardinality + "]");
91 builder.append(" = ");
92 instance.instance.print(builder, indentation, graph);
98 public String toString(ReadGraph graph) throws DatabaseException {
99 StringBuilder builder = new StringBuilder();
100 print(builder, 0, graph);
101 return builder.toString();