1 files changed, 5 insertions, 2 deletions
diff --git a/database/src/backends/mod.rs b/database/src/backends/mod.rs
index a95b00a..dd028f4 100644
--- a/database/src/backends/mod.rs
+++ b/database/src/backends/mod.rs
@@ -25,8 +25,11 @@ pub trait WriteTransaction: ReadTransaction {
 }
 pub trait ReadTransaction {
     fn get(&self, key: &[u8]) -> Result<Option<Vec<u8>>>;
-    fn next(&self, key: &[u8]) -> Result<Option<Vec<u8>>>;
-    fn prev(&self, key: &[u8]) -> Result<Option<Vec<u8>>>;
+    fn iter<'a>(
+        &'a self,
+        key: &[u8],
+        reverse: bool,
+    ) -> Result<Box<dyn Iterator<Item = Result<Vec<u8>>> + 'a>>;
 }
 
 pub fn create_backend(driver: &str, path: &Path) -> Result<Arc<dyn Db>> {