ArafatKhan2198 commented on code in PR #6969:
URL: https://github.com/apache/ozone/pull/6969#discussion_r1798978723
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hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/ReconUtils.java:
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@@ -596,6 +600,88 @@ public static long convertToEpochMillis(String dateString,
String dateFormat, Ti
}
}
+ /**
+ * Retrieves keys from the specified table based on pagination and prefix
filtering.
+ * This method handles different scenarios based on the presence of
startPrefix and prevKey,
+ * enabling efficient key retrieval from the table.
+ *
+ * The method handles the following cases:
+ *
+ * 1. prevKey provided, startPrefix empty:
+ * - Seeks to prevKey, skips it, and returns subsequent records up to the
limit.
+ *
+ * 2. prevKey empty, startPrefix empty:
+ * - Iterates from the beginning of the table, retrieving all records up to
the limit.
+ *
+ * 3. startPrefix provided, prevKey empty:
+ * - Seeks to the first key matching startPrefix and returns all matching
keys up to the limit.
+ *
+ * 4. startPrefix provided, prevKey provided:
+ * - Seeks to prevKey, skips it, and returns subsequent keys that match
startPrefix, up to the limit.
+ *
+ * This method also handles the following limit scenarios:
+ * - If limit = 0 or limit < -1, no records are returned.
+ * - If limit = -1, all records are returned.
+ * - For positive limits, it retrieves records up to the specified limit.
Review Comment:
Thanks for the help @adoroszlai it worked!
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