NamespaceGroupingStrategy (Apache HBase 1.4.11 API)

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java.lang.Object
- org.apache.hadoop.hbase.wal.NamespaceGroupingStrategy

All Implemented Interfaces:

RegionGroupingProvider.RegionGroupingStrategy
```
@InterfaceAudience.Private
public class NamespaceGroupingStrategy
extends Object
implements RegionGroupingProvider.RegionGroupingStrategy
```
A WAL grouping strategy based on namespace. Notice: the wal-group mapping might change if we support dynamic namespace updating later, and special attention needed if we support feature like group-based replication.

Constructor Summary

Constructors
Constructor and Description

NamespaceGroupingStrategy()

Method Summary

Methods
Modifier and Type	Method and Description
`String`	`group(byte[] identifier, byte[] namespace)` Given an identifier and a namespace, pick a group.
`void`	`init(org.apache.hadoop.conf.Configuration config, String providerId)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - NamespaceGroupingStrategy
```
public NamespaceGroupingStrategy()
```
- Method Detail
  - group
```
public String group(byte[] identifier,
           byte[] namespace)
```
    Description copied from interface: RegionGroupingProvider.RegionGroupingStrategy
    
    Given an identifier and a namespace, pick a group.
    
    Specified by:
    
    group in interface RegionGroupingProvider.RegionGroupingStrategy
  - init
```
public void init(org.apache.hadoop.conf.Configuration config,
        String providerId)
```
    Specified by:
    
    init in interface RegionGroupingProvider.RegionGroupingStrategy

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