bundles/org.simantics.objmap2/src/org/simantics/objmap/graph/annotations/factories/UpdateMethodFactory.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2013 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.objmap.graph.annotations.factories;
  13
  14 import java.lang.annotation.Annotation;
  15 import java.lang.reflect.Method;
  16
  17 import org.slf4j.Logger;
  18 import org.slf4j.LoggerFactory;
  19 import org.simantics.db.ReadGraph;
  20 import org.simantics.db.WriteGraph;
  21 import org.simantics.db.exception.DatabaseException;
  22 import org.simantics.objmap.backward.IBackwardMapping;
  23 import org.simantics.objmap.bidirectional.IBidirectionalMappingRule;
  24 import org.simantics.objmap.exceptions.MappingException;
  25 import org.simantics.objmap.forward.IForwardMapping;
  26 import org.simantics.objmap.graph.rules.factory.IMethodRuleFactory;
  27
  28 public class UpdateMethodFactory<Domain, Range> implements IMethodRuleFactory<Domain, Range> {
  29
  30     static Logger LOGGER = LoggerFactory.getLogger(UpdateMethodFactory.class);
  31
  32     @Override
  33     public IBidirectionalMappingRule<Domain, Range> create(ReadGraph g,
  34             Annotation annotation,
  35             final Method method)
  36             throws DatabaseException {
  37         method.setAccessible(true);
  38         return new IBidirectionalMappingRule<Domain,Range>() {
  39
  40             @Override
  41             public boolean updateRange(ReadGraph g, IForwardMapping<Domain, Range> map,
  42                     Domain domainElement, Range rangeElement)
  43                     throws MappingException {
  44                 LOGGER.trace("    UpdateMethodFactory.updateRange");
  45                 try {
  46                     return (Boolean)method.invoke(rangeElement, g, domainElement);
  47                 } catch (Exception e) {
  48                     // TODO Auto-generated catch block
  49                     e.printStackTrace();
  50                 }
  51                 return false;
  52             }
  53
  54             @Override
  55             public boolean updateDomain(WriteGraph g, IBackwardMapping<Domain,Range> map,
  56                     Domain domainElement, Range rangeElement)
  57                     throws MappingException {
  58                 return false;
  59             }
  60
  61             @Override
  62             public boolean checkChanges(ReadGraph g, IForwardMapping<Domain, Range> map, Domain domainElement,
  63                     Range rangeElement) throws MappingException {
  64                 return false;
  65             }
  66
  67             public void createDomain(WriteGraph g, IBackwardMapping<Domain,Range> map, Domain domainElement, Range rangeElement) throws MappingException {
  68                 updateDomain(g, map, domainElement, rangeElement);
  69             };
  70
  71             public void createRange(ReadGraph g, IForwardMapping<Domain,Range> map, Domain domainElement, Range rangeElement) throws MappingException {
  72                 updateRange(g, map, domainElement, rangeElement);
  73             };
  74         };
  75     }
  76
  77 }