org.apache.hadoop.hbase.replication

Interface WALEntryFilter

All Known Implementing Classes:

BaseWALEntryFilter, ChainWALEntryFilter, ClusterMarkingEntryFilter, NamespaceTableCfWALEntryFilter, ScopeWALEntryFilter, SystemTableWALEntryFilter

@InterfaceAudience.LimitedPrivate(value="Replication")
public interface WALEntryFilter

A Filter for WAL entries before being sent over to replication. Multiple filters might be chained together using ChainWALEntryFilter.

Method Summary

Modifier and Type	Method and Description
WAL.Entry	filter(WAL.Entry entry) Applies the filter, possibly returning a different Entry instance.

Method Detail

filter

WAL.Entry filter(WAL.Entry entry)

Applies the filter, possibly returning a different Entry instance. If null is returned, the entry will be skipped.

Parameters:

entry - Entry to filter

Returns:

a (possibly modified) Entry to use. Returning null or an entry with no cells will cause the entry to be skipped for replication.