[HBASE-16480] Merge WALEdit and WALKey

• Type: Sub-task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Fix Version/s: 3.0.0-beta-2
• Component/s: wal
• Assignee: Unassigned
• Reporter: Enis Soztutar
• Created: 23/Aug/16 13:11
• Updated: 16/Dec/23 09:45

Description

No need for separate classes:

// TODO: Key and WALEdit are never used separately, or in one-to-many relation, for practical
//       purposes. They need to be merged into WALEntry.
@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.REPLICATION)
public class WALKey implements SequenceId, Comparable<WALKey> {

Will reduce garbage a little and simplify code. We can get rid of WAL.Entry as well.