bundles/org.simantics.graph/src/org/simantics/graph/diff/Statement.java

   1 package org.simantics.graph.diff;\r
   2 \r
   3 public class Statement {\r
   4         int subject;\r
   5         int predicate;\r
   6         int inverse;\r
   7         int object;\r
   8         \r
   9         public Statement(int subject, int predicate, int inverse, int object) {\r
  10                 this.subject = subject;\r
  11                 this.predicate = predicate;\r
  12                 this.inverse = inverse;\r
  13                 this.object = object;\r
  14         }\r
  15 \r
  16         @Override\r
  17         public int hashCode() {\r
  18                 final int prime = 31;\r
  19                 int result = 1;\r
  20                 result = prime * result + inverse;\r
  21                 result = prime * result + object;\r
  22                 result = prime * result + predicate;\r
  23                 result = prime * result + subject;\r
  24                 return result;\r
  25         }\r
  26 \r
  27         @Override\r
  28         public boolean equals(Object obj) {\r
  29                 if (this == obj)\r
  30                         return true;\r
  31                 if (obj == null)\r
  32                         return false;\r
  33                 if (getClass() != obj.getClass())\r
  34                         return false;\r
  35                 Statement other = (Statement) obj;\r
  36                 if (inverse != other.inverse)\r
  37                         return false;\r
  38                 if (object != other.object)\r
  39                         return false;\r
  40                 if (predicate != other.predicate)\r
  41                         return false;\r
  42                 if (subject != other.subject)\r
  43                         return false;\r
  44                 return true;\r
  45         }\r
  46         \r
  47         public Statement map(int[] map) {\r
  48                 int mappedSubject = map[subject];\r
  49                 if(mappedSubject < 0) return null;\r
  50                 int mappedPredicate = map[predicate];\r
  51                 if(mappedPredicate < 0) return null;            \r
  52                 int mappedInverse;\r
  53                 if(inverse < 0)\r
  54                         mappedInverse = inverse;\r
  55                 else {\r
  56                         mappedInverse = map[inverse];\r
  57                         if(mappedInverse < 0) return null;\r
  58                 }\r
  59                 int mappedObject = map[object];\r
  60                 if(mappedObject < 0) return null;\r
  61                 return new Statement(mappedSubject, mappedPredicate, mappedInverse, mappedObject);\r
  62         }\r
  63 }\r