Typecheck all ranking expressions

1 files changed, 12 insertions, 0 deletions

diff --git a/config-model/src/main/java/com/yahoo/searchdefinition/FeatureNames.java b/config-model/src/main/java/com/yahoo/searchdefinition/FeatureNames.java
index dd03cb8b2a7..c01b009e93b 100644
--- a/config-model/src/main/java/com/yahoo/searchdefinition/FeatureNames.java
+++ b/config-model/src/main/java/com/yahoo/searchdefinition/FeatureNames.java
@@ -101,6 +101,18 @@ public class FeatureNames {
         return canonicalize("query(\"" + propertyName + "\")");
     }
 
+    public static boolean isConstantFeature(String feature) {
+        return feature.startsWith("constant(");
+    }
+
+    public static boolean isAttributeFeature(String feature) {
+        return feature.startsWith("attribute(");
+    }
+
+    public static boolean isQueryFeature(String feature) {
+        return feature.startsWith("query(");
+    }
+
     /**
      * Returns the single argument of the given feature name, without any quotes,
      * or empty if it is not a valid query, attribute or constant feature name