- Add and use getAsDouble method returning a Double object. It behaves similar to Map.get(key).

  null indicates no value present. Then you avoid 2 lookups to first check if a value is present, and then to fetch that value.
  This does wonders when it is backed by a map and hashCode/equals are relatively expensive.

1 files changed, 3 insertions, 0 deletions

diff --git a/vespajlib/src/main/java/com/yahoo/tensor/MappedTensor.java b/vespajlib/src/main/java/com/yahoo/tensor/MappedTensor.java
index 5471ea65b97..3e0df5f2261 100644
--- a/vespajlib/src/main/java/com/yahoo/tensor/MappedTensor.java
+++ b/vespajlib/src/main/java/com/yahoo/tensor/MappedTensor.java
@@ -41,6 +41,9 @@ public class MappedTensor implements Tensor {
     public boolean has(TensorAddress address) { return cells.containsKey(address); }
 
     @Override
+    public Double getAsDouble(TensorAddress address) { return cells.get(address); }
+
+    @Override
     public Iterator<Cell> cellIterator() { return new CellIteratorAdaptor(cells.entrySet().iterator()); }
 
     @Override