bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/genericrelation/Entry.java

   1 package org.simantics.db.layer0.genericrelation;
   2
   3 import org.simantics.databoard.Bindings;
   4 import org.simantics.datatypes.literal.GUID;
   5 import org.simantics.db.ReadGraph;
   6 import org.simantics.db.Resource;
   7 import org.simantics.db.common.request.TypeString;
   8 import org.simantics.db.exception.DatabaseException;
   9 import org.simantics.layer0.Layer0;
  10
  11 class Entry implements Comparable<Entry> {
  12
  13         Entry(Resource parent, Resource resource, String name, String types, String id) {
  14                 this.parent = parent;
  15                 this.resource = resource;
  16                 this.name = name;
  17                 this.types = types;
  18                 this.id = id;
  19         }
  20
  21         Entry(ReadGraph graph, Layer0 L0, Resource resource) throws DatabaseException {
  22                 this.parent = graph.getPossibleObject(resource, L0.PartOf);
  23                 this.resource = resource;
  24                 this.name = graph.getPossibleRelatedValue(resource, L0.HasName, Bindings.STRING);
  25                 this.types = graph.syncRequest(new TypeString(L0, graph.getTypes(resource)));
  26                 this.id = idFromGUID(graph.getPossibleRelatedValue(resource, L0.identifier, GUID.BINDING));
  27         }
  28
  29         private static String idFromGUID(GUID guid) {
  30                 if(guid == null) return "";
  31                 return guid.indexString();
  32         }
  33
  34         Entry(ReadGraph graph, Resource resource) throws DatabaseException {
  35                 this(graph, Layer0.getInstance(graph), resource);
  36         }
  37
  38         final Resource parent;
  39         final Resource resource;
  40
  41         String types;
  42         String name;
  43         String id;
  44         Resource principalType;
  45
  46         @Override
  47         public int compareTo(Entry o) {
  48                 int names = name.compareTo(o.name);
  49                 if(names != 0) return names;
  50                 int resources = resource.compareTo(o.resource);
  51                 if(resources != 0) return resources;
  52                 return id.compareTo(o.id);
  53         }
  54
  55         @Override
  56         public int hashCode() {
  57                 return resource.hashCode();
  58         }
  59
  60         @Override
  61         public boolean equals(Object obj) {
  62                 Entry other = (Entry)obj;
  63                 return resource.equals(other.resource);
  64         }
  65
  66 }