1 files changed, 17 insertions, 0 deletions
diff --git a/vespajlib/src/main/java/com/yahoo/compress/Hasher.java b/vespajlib/src/main/java/com/yahoo/compress/Hasher.java
index 92a9ed26085..d991a98a5d0 100644
--- a/vespajlib/src/main/java/com/yahoo/compress/Hasher.java
+++ b/vespajlib/src/main/java/com/yahoo/compress/Hasher.java
@@ -8,8 +8,25 @@ import net.openhft.hashing.LongHashFunction;
  * @author baldersheim
  */
 public class Hasher {
+    private final LongHashFunction hasher;
     /** Uses net.openhft.hashing.LongHashFunction.xx3() */
     public static long xxh3(byte [] data) {
         return LongHashFunction.xx3().hashBytes(data);
     }
+    public static long xxh3(byte [] data, long seed) {
+        return LongHashFunction.xx3(seed).hashBytes(data);
+    }
+
+    private Hasher(LongHashFunction hasher) {
+        this.hasher = hasher;
+    }
+    public static Hasher of(long seed) {
+        return new Hasher(LongHashFunction.xx3(seed));
+    }
+    public long hash(long v) {
+        return hasher.hashLong(v);
+    }
+    public long hash(String s) {
+        return hasher.hashChars(s);
+    }
 }