belliottsmith commented on code in PR #50:
URL: https://github.com/apache/cassandra-accord/pull/50#discussion_r1285024330
##########
accord-core/src/main/java/accord/local/CommandStores.java:
##########
@@ -474,40 +474,42 @@ public <O> void mapReduceConsume(PreLoadContext context,
IntStream commandStore
public <O> AsyncChain<O> mapReduce(PreLoadContext context, Routables<?>
keys, long minEpoch, long maxEpoch, MapReduce<? super SafeCommandStore, O>
mapReduce)
{
- AsyncChain<O> chain = null;
BiFunction<O, O, O> reducer = mapReduce::reduce;
Snapshot snapshot = current;
ShardHolder[] shards = snapshot.shards;
+ List<AsyncChain<? extends O>> chains = null;
Review Comment:
I’d be fine with a version of the loop that just allocates the list on
encountering the second chain
##########
accord-core/src/main/java/accord/local/CommandStores.java:
##########
@@ -474,40 +474,42 @@ public <O> void mapReduceConsume(PreLoadContext context,
IntStream commandStore
public <O> AsyncChain<O> mapReduce(PreLoadContext context, Routables<?>
keys, long minEpoch, long maxEpoch, MapReduce<? super SafeCommandStore, O>
mapReduce)
{
- AsyncChain<O> chain = null;
BiFunction<O, O, O> reducer = mapReduce::reduce;
Snapshot snapshot = current;
ShardHolder[] shards = snapshot.shards;
+ List<AsyncChain<? extends O>> chains = null;
Review Comment:
I’d be fine with a version of the loop that just allocates the list on
encountering the second chain
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