Move asDocumentWeightAttribute() to IAttributeVector.

1 files changed, 4 insertions, 0 deletions

diff --git a/searchlib/src/vespa/searchlib/attribute/imported_attribute_vector.cpp b/searchlib/src/vespa/searchlib/attribute/imported_attribute_vector.cpp
index f02bf78c59e..5e2973790fc 100644
--- a/searchlib/src/vespa/searchlib/attribute/imported_attribute_vector.cpp
+++ b/searchlib/src/vespa/searchlib/attribute/imported_attribute_vector.cpp
@@ -99,6 +99,10 @@ std::unique_ptr<ISearchContext> ImportedAttributeVector::createSearchContext(std
     return std::unique_ptr<ISearchContext>();
 }
 
+const IDocumentWeightAttribute *ImportedAttributeVector::asDocumentWeightAttribute() const {
+    return nullptr;
+}
+
 BasicType::Type ImportedAttributeVector::getBasicType() const {
     return _target_attribute->getBasicType();
 }