LantaoJin commented on a change in pull request #24982: [SPARK-28181][CORE] Add
a filter interface to KVStore to speed up the entities retrieve
URL: https://github.com/apache/spark/pull/24982#discussion_r298501045
##########
File path:
common/kvstore/src/main/java/org/apache/spark/util/kvstore/LevelDB.java
##########
@@ -197,6 +201,23 @@ public void delete(Class<?> type, Object naturalKey)
throws Exception {
};
}
+ @Override
+ public <T> KVStoreView<T> viewWithCondition(Class<T> type, Predicate<T>
condition) throws Exception {
+ return new KVStoreView<T>() {
+ @Override
+ public Iterator<T> iterator() {
+ try {
+ Iterator<T> base = new LevelDBIterator<>(type, LevelDB.this, this);
+ Iterable<T> iterable = () -> base;
Review comment:
Updated
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