gerrit.simantics Code Review - simantics/sysdyn.git/blob

   1 package org.simantics.sysdyn.modelImport.model.expression;\r
   2 \r
   3 import java.util.Arrays;\r
   4 \r
   5 import org.simantics.db.ReadGraph;\r
   6 import org.simantics.db.Resource;\r
   7 import org.simantics.db.WriteGraph;\r
   8 import org.simantics.db.common.utils.ListUtils;\r
   9 import org.simantics.db.exception.DatabaseException;\r
  10 import org.simantics.layer0.Layer0;\r
  11 import org.simantics.layer0.utils.direct.GraphUtils;\r
  12 import org.simantics.sysdyn.SysdynResource;\r
  13 import org.simantics.sysdyn.modelImport.model.IWriteableObject;\r
  14 import org.simantics.sysdyn.modelImport.model.WriteContext;\r
  15 \r
  16 public abstract class Expression implements IWriteableObject {\r
  17 \r
  18         private Resource expr;\r
  19 \r
  20         @Override\r
  21         public Resource write(WriteGraph graph, Resource parent, WriteContext context) throws DatabaseException {\r
  22                 Layer0 l0 = Layer0.getInstance(graph);\r
  23                 SysdynResource sr = SysdynResource.getInstance(graph);\r
  24                 \r
  25                 expr = GraphUtils.create2(graph, getExpressionType(graph),\r
  26                                 l0.PartOf, parent);\r
  27 \r
  28                 // insert the expression into the expression list of the variable \r
  29                 // (necessary because of enumeration expressions)\r
  30                 Resource list = graph.getPossibleObject(parent, sr.Variable_expressionList);\r
  31                 if (list != null)\r
  32                         ListUtils.insertBack(graph, list, Arrays.asList(expr));\r
  33                 else\r
  34                         graph.claim(parent, sr.Variable_expressionList, ListUtils.create(graph, Arrays.asList(expr)));\r
  35 \r
  36                 return expr;\r
  37         }\r
  38         \r
  39         public abstract Resource getExpressionType(ReadGraph graph);\r
  40 \r
  41         @Override\r
  42         public Resource getResource() {\r
  43                 return expr;\r
  44         }\r
  45 }\r