MultiServerCallable (Apache HBase 1.2.12 API)

java.lang.Object
- org.apache.hadoop.hbase.client.RegionServerCallable<MultiResponse>
- - org.apache.hadoop.hbase.client.MultiServerCallable<R>

Type Parameters:
R -

All Implemented Interfaces:

Cancellable, RetryingCallable<MultiResponse>
```
 class MultiServerCallable<R>
extends RegionServerCallable<MultiResponse>
implements Cancellable
```
Callable that handles the multi method call going against a single regionserver; i.e. A RegionServerCallable for the multi call (It is not a RegionServerCallable that goes against multiple regions.

Field Summary

Fields
Modifier and Type Field and Description

private boolean cellBlock

private PayloadCarryingRpcController controller

private MultiAction<R> multiAction
- Fields inherited from class org.apache.hadoop.hbase.client.RegionServerCallable
  connection, location, row, tableName

Fields
Modifier and Type	Field and Description
`private boolean`	`cellBlock`
`private PayloadCarryingRpcController`	`controller`
`private MultiAction<R>`	`multiAction`

Constructor Summary

Constructors
Constructor and Description
`MultiServerCallable(ClusterConnection connection, TableName tableName, ServerName location, RpcControllerFactory rpcFactory, MultiAction<R> multi)`

Method Summary

Methods
Modifier and Type	Method and Description
`MultiResponse`	`call(int callTimeout)` Computes a result, or throws an exception if unable to do so.
`void`	`cancel()`
`HRegionInfo`	`getHRegionInfo()`
`protected HRegionLocation`	`getLocation()`
`(package private) MultiAction<R>`	`getMulti()`
`(package private) ServerName`	`getServerName()`
`boolean`	`isCancelled()`
`private boolean`	`isCellBlock()`
`void`	`prepare(boolean reload)` Prepare for connection to the server hosting region with row from tablename.

Methods inherited from class org.apache.hadoop.hbase.client.RegionServerCallable
getConnection, getExceptionMessageAdditionalDetail, getRow, getStub, getTableName, setLocation, setStub, sleep, throwable

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

- Field Detail
  - multiAction
```
private final MultiAction<R> multiAction
```
  - cellBlock
```
private final boolean cellBlock
```
  - controller
```
private final PayloadCarryingRpcController controller
```
- Constructor Detail
  - MultiServerCallable
```
MultiServerCallable(ClusterConnection connection,
                   TableName tableName,
                   ServerName location,
                   RpcControllerFactory rpcFactory,
                   MultiAction<R> multi)
```
- Method Detail
  - getLocation
```
protected HRegionLocation getLocation()
```
    Overrides:
    
    getLocation in class RegionServerCallable<MultiResponse>
  - getHRegionInfo
```
public HRegionInfo getHRegionInfo()
```
    Overrides:
    
    getHRegionInfo in class RegionServerCallable<MultiResponse>
    
    Returns:
    the HRegionInfo for the current region
  - getMulti
```
MultiAction<R> getMulti()
```
  - call
```
public MultiResponse call(int callTimeout)
                   throws IOException
```
    Description copied from interface: RetryingCallable
    
    Computes a result, or throws an exception if unable to do so.
    
    Specified by:
    
    call in interface RetryingCallable<MultiResponse>
    
    Parameters:
    callTimeout - - the time available for this call. 0 for infinite.
    
    Returns:
    computed result
    
    Throws:
    
    IOException
  - cancel
```
public void cancel()
```
    Specified by:
    
    cancel in interface Cancellable
  - isCancelled
```
public boolean isCancelled()
```
    Specified by:
    
    isCancelled in interface Cancellable
  - isCellBlock
```
private boolean isCellBlock()
```
    Returns:
    True if we should send data in cellblocks. This is an expensive call. Cache the result if you can rather than call each time.
  - prepare
```
public void prepare(boolean reload)
             throws IOException
```
    Description copied from class: RegionServerCallable
    
    Prepare for connection to the server hosting region with row from tablename. Does lookup to find region location and hosting server.
    
    Specified by:
    
    prepare in interface RetryingCallable<MultiResponse>
    
    Overrides:
    
    prepare in class RegionServerCallable<MultiResponse>
    
    Parameters:
    reload - Set this to true if connection should re-find the region
    
    Throws:
    
    IOException - e
  - getServerName
```
ServerName getServerName()
```

Class MultiServerCallable<R>

Field Summary

Fields inherited from class org.apache.hadoop.hbase.client.RegionServerCallable

Constructor Summary

Method Summary

Methods inherited from class org.apache.hadoop.hbase.client.RegionServerCallable

Methods inherited from class java.lang.Object

Field Detail

multiAction

cellBlock

controller

Constructor Detail

MultiServerCallable

Method Detail

getLocation

getHRegionInfo

getMulti

call

cancel

isCancelled

isCellBlock

prepare

getServerName