bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/DataValues.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.layer0.util;
  13
  14 import org.simantics.databoard.Bindings;
  15 import org.simantics.databoard.binding.Binding;
  16 import org.simantics.databoard.type.Datatype;
  17 import org.simantics.db.Resource;
  18 import org.simantics.db.WriteGraph;
  19 import org.simantics.db.exception.DatabaseException;
  20 import org.simantics.layer0.Layer0;
  21
  22 public class DataValues {
  23
  24         public static Resource createLiteral(WriteGraph g, Object value, Binding binding) throws DatabaseException {
  25                 Layer0 l0 = Layer0.getInstance(g);
  26                 Resource literal = g.newResource();
  27                 g.claim(literal, l0.InstanceOf, l0.Literal);
  28                 Resource dataType = g.newResource();
  29                 g.claim(dataType, l0.InstanceOf, l0.DataType);
  30                 g.claimValue(dataType, binding.type(),
  31                                 Bindings.getBindingUnchecked(Datatype.class));
  32                 g.claim(literal, l0.HasDataType, dataType);
  33                 g.claimValue(literal, value, binding);
  34                 return literal;
  35         }
  36
  37 }