nizhikov commented on a change in pull request #6982: IGNITE-12295: Index
partition purge for file-based rebalancing
URL: https://github.com/apache/ignite/pull/6982#discussion_r337059220
##########
File path:
modules/core/src/main/java/org/apache/ignite/internal/processors/cache/persistence/tree/BPlusTree.java
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@@ -1826,6 +1827,23 @@ public final boolean removex(L row) throws
IgniteCheckedException {
return res != null ? res : false;
}
+ /**
+ * Returns a cursor that removes rows when being iterated.
+ * Uses a specified closure as a predicate to filter rows.
+ *
+ * @param clo TreeRowClosure Closure to filter rows.
+ * @throws IgniteCheckedException If failed.
+ */
+ public GridCursor<Void> purge(TreeRowClosure<L, T> clo) throws
IgniteCheckedException {
Review comment:
I don't get why we should share "cursor that removes rows when being
iterated"?
Can we implement regular `Iterator` with support of `remove` operation?
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