Spring/spring-data-keyvalue
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DATAKV-297 - Use computeIfAbsent to create keyspace maps.

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We now use computeIfAbsent to ensure atomic creation of keyspace maps if the underlying Map implementation allows for concurrent access.
This commit is contained in:
Mark Paluch
2020-09-30 14:52:55 +02:00
parent e8cdd00ff1
commit d1929fa546
1 changed files with 1 additions and 11 deletions
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12
src/main/java/org/springframework/data/map/MapKeyValueAdapter.java
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@@ -189,17 +189,7 @@ public class MapKeyValueAdapter extends AbstractKeyValueAdapter {
Assert.notNull(keyspace, "Collection must not be null for lookup.");
Map<Object, Object> map = store.get(keyspace);
if (map != null) {
return map;
}
addMapForKeySpace(keyspace);
return store.get(keyspace);
return store.computeIfAbsent(keyspace, it -> CollectionFactory.createMap(keySpaceMapType, 1000));
}
private void addMapForKeySpace(String keyspace) {
store.put(keyspace, CollectionFactory.createMap(keySpaceMapType, 1000));
}
}