1 files changed, 8 insertions, 0 deletions

diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/AnySymbolView.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/AnySymbolView.java
index 90b27ebb..7e9bf6df 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/AnySymbolView.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/AnySymbolView.java
@@ -28,4 +28,12 @@ public sealed interface AnySymbolView extends Constraint permits SymbolView {
         boolean get(Model model, Object[] tuple);
 
         Iterable<Object[]> getAll(Model model);
+
+        default Iterable<Object[]> getAdjacent(Model model, int slot, Object value) {
+                throw new IllegalArgumentException("Cannot index slot " + slot);
+        }
+
+        default boolean canIndexSlot(int slot) {
+                return false;
+        }
 }