bundles/org.simantics.structural2/src/org/simantics/structural2/variables/AbstractVariableConnectionPointDescriptor.java

   1 package org.simantics.structural2.variables;\r
   2 \r
   3 import java.util.Collection;\r
   4 \r
   5 import org.simantics.db.ReadGraph;\r
   6 import org.simantics.db.common.procedure.adapter.TransientCacheAsyncListener;\r
   7 import org.simantics.db.common.request.UnaryRead;\r
   8 import org.simantics.db.exception.DatabaseException;\r
   9 import org.simantics.db.layer0.request.PropertyInfo;\r
  10 import org.simantics.db.layer0.request.PropertyInfoRequest;\r
  11 import org.simantics.db.layer0.variable.Variable;\r
  12 import org.simantics.db.layer0.variable.Variables;\r
  13 import org.simantics.structural2.Functions;\r
  14 import org.simantics.structural2.Functions.InterfaceResolution;\r
  15 \r
  16 abstract public class AbstractVariableConnectionPointDescriptor implements VariableConnectionPointDescriptor {\r
  17 \r
  18         static class ComputeInterfaceDescription extends UnaryRead<AbstractVariableConnectionPointDescriptor, Collection<InterfaceResolution>> {\r
  19 \r
  20                 public ComputeInterfaceDescription(AbstractVariableConnectionPointDescriptor desc) {\r
  21                         super(desc);\r
  22                 }\r
  23 \r
  24                 @Override\r
  25                 public Collection<InterfaceResolution> perform(ReadGraph graph) throws DatabaseException {\r
  26                         return Functions.computeInterfacePaths(graph, parameter.getVariable(graph).getParent(graph));\r
  27                 }\r
  28                 \r
  29         }\r
  30         \r
  31         @Override\r
  32         public Collection<InterfaceResolution> getInterfaceDescription(ReadGraph graph) throws DatabaseException {\r
  33                 return graph.syncRequest(new ComputeInterfaceDescription(this), TransientCacheAsyncListener.<Collection<InterfaceResolution>>instance());\r
  34         }\r
  35         \r
  36         @Override\r
  37         public boolean isLeaf(ReadGraph graph) throws DatabaseException {\r
  38                 \r
  39                 Collection<InterfaceResolution> inf = getInterfaceDescription(graph);\r
  40                 if(inf == null) return true;\r
  41                 return inf.isEmpty();\r
  42                 \r
  43         }\r
  44         \r
  45         @Override\r
  46         public boolean hasClassification(ReadGraph graph, String classification) throws DatabaseException {\r
  47                 \r
  48         PropertyInfo info = graph.syncRequest(new PropertyInfoRequest(getConnectionPointResource(graph)), TransientCacheAsyncListener.<PropertyInfo>instance());\r
  49         return info.hasClassification(classification);\r
  50                 \r
  51         }\r
  52         \r
  53         @Override\r
  54         public String getRelativeRVI(ReadGraph graph, Variable base) throws DatabaseException {\r
  55                 \r
  56         String var = getURI(graph);\r
  57         String baseURI = base.getURI(graph);\r
  58         return Variables.getRelativeRVI(baseURI, var);\r
  59 \r
  60         }\r
  61 \r
  62 }\r