1 files changed, 29 insertions, 0 deletions
diff --git a/vespajlib/src/main/java/com/yahoo/tensor/functions/Map.java b/vespajlib/src/main/java/com/yahoo/tensor/functions/Map.java
new file mode 100644
index 00000000000..cb0615693ae
--- /dev/null
+++ b/vespajlib/src/main/java/com/yahoo/tensor/functions/Map.java
@@ -0,0 +1,29 @@
+package com.yahoo.tensor.functions;
+
+import java.util.function.DoubleBinaryOperator;
+import java.util.function.DoubleUnaryOperator;
+
+/**
+ * The join tensor function.
+ *
+ * @author bratseth
+ */
+public class Map extends PrimitiveTensorFunction {
+
+    private final TensorFunction argument;
+    private final DoubleUnaryOperator mapper;
+
+    public Map(TensorFunction argument, DoubleUnaryOperator mapper) {
+        this.argument = argument;
+        this.mapper = mapper;
+    }
+
+    public TensorFunction argument() { return argument; }
+    public DoubleUnaryOperator mapper() { return mapper; }
+
+    @Override
+    public PrimitiveTensorFunction toPrimitive() {
+        return new Map(argument.toPrimitive(), mapper);
+    }
+
+}