netudima commented on code in PR #2497:
URL: https://github.com/apache/cassandra/pull/2497#discussion_r2098915780


##########
src/java/org/apache/cassandra/tools/nodetool/EnableAutoCompaction.java:
##########
@@ -17,25 +17,37 @@
  */
 package org.apache.cassandra.tools.nodetool;
 
-import io.airlift.airline.Arguments;
-import io.airlift.airline.Command;
-
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
 import org.apache.cassandra.tools.NodeProbe;
-import org.apache.cassandra.tools.NodeTool.NodeToolCmd;
+
+import org.apache.cassandra.tools.nodetool.layout.CassandraUsage;
+import picocli.CommandLine.Command;
+import picocli.CommandLine.Parameters;
+
+import static 
org.apache.cassandra.tools.nodetool.CommandUtils.parseOptionalKeyspace;
+import static 
org.apache.cassandra.tools.nodetool.CommandUtils.parseOptionalTables;
+import static org.apache.cassandra.tools.nodetool.CommandUtils.concatArgs;
 
 @Command(name = "enableautocompaction", description = "Enable autocompaction 
for the given keyspace and table")
-public class EnableAutoCompaction extends NodeToolCmd
+public class EnableAutoCompaction extends AbstractCommand
 {
-    @Arguments(usage = "[<keyspace> <tables>...]", description = "The keyspace 
followed by one or many tables")
+    @CassandraUsage(usage = "[<keyspace> <tables>...]", description = "The 
keyspace followed by one or many tables")
     private List<String> args = new ArrayList<>();
 
+    @Parameters(index = "0", description = "The keyspace to enable 
auto-compaction on", arity = "0..1")
+    private String keyspace;
+
+    @Parameters(index = "1..*", description = "The tables to enable 
auto-compaction on", arity = "0..1")

Review Comment:
   why do we have 0..1 arity here if multiple tables are supported here?



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