Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.graph / src / org / simantics / graph / diff / Statement.java

diff --git a/bundles/org.simantics.graph/src/org/simantics/graph/diff/Statement.java b/bundles/org.simantics.graph/src/org/simantics/graph/diff/Statement.java
new file mode 100644 (file)
index 0000000..a15e0bb
--- /dev/null
+++ b/bundles/org.simantics.graph/src/org/simantics/graph/diff/Statement.java
@@ -0,0 +1,63 @@
+package org.simantics.graph.diff;\r
+\r
+public class Statement {\r
+       int subject;\r
+       int predicate;\r
+       int inverse;\r
+       int object;\r
+       \r
+       public Statement(int subject, int predicate, int inverse, int object) {\r
+               this.subject = subject;\r
+               this.predicate = predicate;\r
+               this.inverse = inverse;\r
+               this.object = object;\r
+       }\r
+\r
+       @Override\r
+       public int hashCode() {\r
+               final int prime = 31;\r
+               int result = 1;\r
+               result = prime * result + inverse;\r
+               result = prime * result + object;\r
+               result = prime * result + predicate;\r
+               result = prime * result + subject;\r
+               return result;\r
+       }\r
+\r
+       @Override\r
+       public boolean equals(Object obj) {\r
+               if (this == obj)\r
+                       return true;\r
+               if (obj == null)\r
+                       return false;\r
+               if (getClass() != obj.getClass())\r
+                       return false;\r
+               Statement other = (Statement) obj;\r
+               if (inverse != other.inverse)\r
+                       return false;\r
+               if (object != other.object)\r
+                       return false;\r
+               if (predicate != other.predicate)\r
+                       return false;\r
+               if (subject != other.subject)\r
+                       return false;\r
+               return true;\r
+       }\r
+       \r
+       public Statement map(int[] map) {\r
+               int mappedSubject = map[subject];\r
+               if(mappedSubject < 0) return null;\r
+               int mappedPredicate = map[predicate];\r
+               if(mappedPredicate < 0) return null;            \r
+               int mappedInverse;\r
+               if(inverse < 0)\r
+                       mappedInverse = inverse;\r
+               else {\r
+                       mappedInverse = map[inverse];\r
+                       if(mappedInverse < 0) return null;\r
+               }\r
+               int mappedObject = map[object];\r
+               if(mappedObject < 0) return null;\r
+               return new Statement(mappedSubject, mappedPredicate, mappedInverse, mappedObject);\r
+       }\r
+}\r