diff --git a/CoreStore/Setting Up/DataStack.swift b/CoreStore/Setting Up/DataStack.swift
index 8c3bdf6..e435c0a 100644
--- a/CoreStore/Setting Up/DataStack.swift	
+++ b/CoreStore/Setting Up/DataStack.swift	
@@ -89,6 +89,14 @@ public final class DataStack {
         return self.model.entityMapping()
     }
     
+    /**
+    Returns the `NSManagedObjectID` for the specified object URI if it exists in the persistent store.
+    */
+    public func objectIDForURIRepresentation(url: NSURL) -> NSManagedObjectID? {
+        
+        return self.coordinator.managedObjectIDForURIRepresentation(url)
+    }
+    
     /**
     Adds an in-memory store to the stack.