cypher performance

eldersantos · May 9, 2012 · c32b45b · c32b45b
1 parent 1da2945
commit c32b45b
Showing 1 changed file with 6 additions and 5 deletions.
diff --git a/cypher/src/main/scala/org/neo4j/cypher/internal/pipes/NiceHasher.scala b/cypher/src/main/scala/org/neo4j/cypher/internal/pipes/NiceHasher.scala
@@ -36,11 +36,12 @@ class NiceHasher(val original: Seq[Any]) {
 
   override def toString = hashCode() + " : " + original.toString
 
-  private lazy val hash = original.map {
-    case x: Array[AnyRef] => java.util.Arrays.deepHashCode(x)
-    case null => 0
-    case x => x.hashCode()
-  }.foldLeft(0)((a, b) => 31 * a + b)
+  private lazy val hash = original.foldLeft(0) ((hashValue,element) => { element match {
+     case x: Array[AnyRef] => java.util.Arrays.deepHashCode(x)
+     case null => 0
+     case x => x.hashCode()
+    }
+  } + hashValue * 31 )
 
   override def hashCode() = hash
 }