CloseRegionHandler (Apache HBase 1.2.12 API)

java.lang.Object
- org.apache.hadoop.hbase.executor.EventHandler
- - org.apache.hadoop.hbase.regionserver.handler.CloseRegionHandler

All Implemented Interfaces:

Comparable<Runnable>, Runnable

Direct Known Subclasses:

CloseMetaHandler
```
@InterfaceAudience.Private
public class CloseRegionHandler
extends EventHandler
```
Handles closing of a region on a region server.

Nested Class Summary
- Nested classes/interfaces inherited from class org.apache.hadoop.hbase.executor.EventHandler
  EventHandler.EventHandlerListener

Field Summary

Fields
Modifier and Type	Field and Description
`private boolean`	`abort`
`private CloseRegionCoordination`	`closeRegionCoordination`
`private CloseRegionCoordination.CloseRegionDetails`	`closeRegionDetails`
`private ServerName`	`destination`
`private static org.apache.commons.logging.Log`	`LOG`
`private HRegionInfo`	`regionInfo`
`private RegionServerServices`	`rsServices`
`private boolean`	`useZKForAssignment`

Fields inherited from class org.apache.hadoop.hbase.executor.EventHandler
eventType, seqids, server, waitingTimeForEvents

Constructor Summary

Constructors
Modifier	Constructor and Description
	`CloseRegionHandler(Server server, RegionServerServices rsServices, HRegionInfo regionInfo, boolean abort, CloseRegionCoordination closeRegionCoordination, CloseRegionCoordination.CloseRegionDetails crd)` This method used internally by the RegionServer to close out regions.
	`CloseRegionHandler(Server server, RegionServerServices rsServices, HRegionInfo regionInfo, boolean abort, CloseRegionCoordination closeRegionCoordination, CloseRegionCoordination.CloseRegionDetails crd, EventType eventType)`
`protected`	`CloseRegionHandler(Server server, RegionServerServices rsServices, HRegionInfo regionInfo, boolean abort, CloseRegionCoordination closeRegionCoordination, CloseRegionCoordination.CloseRegionDetails crd, EventType eventType, ServerName destination)`
	`CloseRegionHandler(Server server, RegionServerServices rsServices, HRegionInfo regionInfo, boolean abort, CloseRegionCoordination closeRegionCoordination, CloseRegionCoordination.CloseRegionDetails crd, ServerName destination)`

Method Summary

Methods
Modifier and Type Method and Description

HRegionInfo getRegionInfo()

void process()
This method is the main processing loop to be implemented by the various subclasses.
- Methods inherited from class org.apache.hadoop.hbase.executor.EventHandler
  compareTo, getEventType, getInformativeName, getListener, getPriority, getSeqid, handleException, prepare, run, setListener, toString
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods
Modifier and Type	Method and Description
`HRegionInfo`	`getRegionInfo()`
`void`	`process()` This method is the main processing loop to be implemented by the various subclasses.

Field Detail

LOG

private static final org.apache.commons.logging.Log LOG

rsServices

private final RegionServerServices rsServices

regionInfo
```
private final HRegionInfo regionInfo
```

abort
```
private final boolean abort
```

destination
```
private ServerName destination
```

closeRegionCoordination

private CloseRegionCoordination closeRegionCoordination

closeRegionDetails

private CloseRegionCoordination.CloseRegionDetails closeRegionDetails

useZKForAssignment

private final boolean useZKForAssignment

Constructor Detail

CloseRegionHandler

public CloseRegionHandler(Server server,
                  RegionServerServices rsServices,
                  HRegionInfo regionInfo,
                  boolean abort,
                  CloseRegionCoordination closeRegionCoordination,
                  CloseRegionCoordination.CloseRegionDetails crd)

This method used internally by the RegionServer to close out regions.

Parameters:: server -; rsServices -; regionInfo -; abort - If the regionserver is aborting.; closeRegionCoordination - consensus for closing regions; crd - object carrying details about region close task.

CloseRegionHandler

public CloseRegionHandler(Server server,
                  RegionServerServices rsServices,
                  HRegionInfo regionInfo,
                  boolean abort,
                  CloseRegionCoordination closeRegionCoordination,
                  CloseRegionCoordination.CloseRegionDetails crd,
                  ServerName destination)

CloseRegionHandler

public CloseRegionHandler(Server server,
                  RegionServerServices rsServices,
                  HRegionInfo regionInfo,
                  boolean abort,
                  CloseRegionCoordination closeRegionCoordination,
                  CloseRegionCoordination.CloseRegionDetails crd,
                  EventType eventType)

CloseRegionHandler

protected CloseRegionHandler(Server server,
                  RegionServerServices rsServices,
                  HRegionInfo regionInfo,
                  boolean abort,
                  CloseRegionCoordination closeRegionCoordination,
                  CloseRegionCoordination.CloseRegionDetails crd,
                  EventType eventType,
                  ServerName destination)

Method Detail
- getRegionInfo
```
public HRegionInfo getRegionInfo()
```
- process
```
public void process()
```
  Description copied from class: EventHandler
  
  This method is the main processing loop to be implemented by the various subclasses.
  
  Specified by:
  
  process in class EventHandler

Class CloseRegionHandler

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hbase.executor.EventHandler

Field Summary

Fields inherited from class org.apache.hadoop.hbase.executor.EventHandler

Constructor Summary

Method Summary

Methods inherited from class org.apache.hadoop.hbase.executor.EventHandler

Methods inherited from class java.lang.Object

Field Detail

LOG

rsServices

regionInfo

abort

destination

closeRegionCoordination

closeRegionDetails

useZKForAssignment

Constructor Detail

CloseRegionHandler

CloseRegionHandler

CloseRegionHandler

CloseRegionHandler

Method Detail

getRegionInfo

process