Tidied up the Stamper module and upgraded to a 1.34 dependency

Added stamper.revert method to be used for rollback - rolling back to a previous
commit in case of deleting all documents or rolling operations back should reset
the stamper as well

Added type alias for Opstamp - helps code readibility instead of seeing u64
returned by functions.

Moved to AtomicU64 on stable rust (since 1.34) - where possible use standard
library interfaces.

1 files changed, 4 insertions, 3 deletions

diff --git a/src/indexer/merge_operation.rs b/src/indexer/merge_operation.rs
index 9d7bcbc..5bf84f1 100644
--- a/src/indexer/merge_operation.rs
+++ b/src/indexer/merge_operation.rs
@@ -1,4 +1,5 @@
 use census::{Inventory, TrackedObject};
+use indexer::Opstamp;
 use std::collections::HashSet;
 use SegmentId;
 
@@ -35,14 +36,14 @@ pub struct MergeOperation {
 }
 
 struct InnerMergeOperation {
-    target_opstamp: u64,
+    target_opstamp: Opstamp,
     segment_ids: Vec<SegmentId>,
 }
 
 impl MergeOperation {
     pub fn new(
         inventory: &MergeOperationInventory,
-        target_opstamp: u64,
+        target_opstamp: Opstamp,
         segment_ids: Vec<SegmentId>,
     ) -> MergeOperation {
         let inner_merge_operation = InnerMergeOperation {
@@ -54,7 +55,7 @@ impl MergeOperation {
         }
     }
 
-    pub fn target_opstamp(&self) -> u64 {
+    pub fn target_opstamp(&self) -> Opstamp {
         self.inner.target_opstamp
     }