belliottsmith commented on a change in pull request #1:
URL: https://github.com/apache/cassandra-accord/pull/1#discussion_r798464083
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File path: accord-core/src/main/java/accord/topology/Topologies.java
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@@ -0,0 +1,272 @@
+package accord.topology;
+
+import accord.local.Node;
+import accord.utils.IndexedConsumer;
+import com.google.common.base.Preconditions;
+
+import java.util.*;
+import java.util.function.Consumer;
+
+public interface Topologies
+{
+ Topology current();
+
+ default long currentEpoch()
+ {
+ return current().epoch;
+ }
+
+ boolean fastPathPermitted();
+
+ // topologies are stored in reverse epoch order, with the highest epoch at
idx 0
+ Topology get(int i);
+
+ int size();
+
+ int totalShards();
+
+ Set<Node.Id> nodes();
+
+ Topologies withMinEpoch(long epoch);
Review comment:
Perhaps `truncateWithMinEpoch`? Or `removeEpochsBefore`?
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