chart/property/TimePropertyModifier.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2011 Association for Decentralized Information Management in
   3  * 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.modeling.ui.chart.property;
  13
  14 import org.simantics.browsing.ui.swt.widgets.impl.TextModifyListenerImpl;
  15 import org.simantics.databoard.Bindings;
  16 import org.simantics.db.Resource;
  17 import org.simantics.db.WriteGraph;
  18 import org.simantics.db.exception.DatabaseException;
  19 import org.simantics.db.management.ISessionContext;
  20
  21 /**
  22  * @author Toni Kalajainen
  23  */
  24 public class TimePropertyModifier extends TextModifyListenerImpl<Resource> {
  25
  26     final private String propertyURI;
  27     TimeInputValidator validator;
  28
  29     public TimePropertyModifier(ISessionContext context, String propertyURI, TimeInputValidator validator) {
  30         this.propertyURI = propertyURI;
  31         this.validator = validator;
  32     }
  33
  34     @Override
  35     public void applyText(WriteGraph graph, Resource input, String text) throws DatabaseException {
  36         Double x = validator.parse(text);
  37         if (x == null) {
  38             if (graph.hasStatement(input, graph.getResource(propertyURI)))
  39                 graph.denyValue(input, graph.getResource(propertyURI));
  40         } else {
  41             graph.claimLiteral(input, graph.getResource(propertyURI), x, Bindings.DOUBLE);
  42         }
  43     }
  44
  45 }
  46