SplitTransactionImpl (Apache HBase 1.4.11 API)

java.lang.Object
- org.apache.hadoop.hbase.regionserver.SplitTransactionImpl

All Implemented Interfaces:: SplitTransaction

@InterfaceAudience.Private
public class SplitTransactionImpl
extends Object
implements SplitTransaction

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class SplitTransactionImpl.JournalEntryImpl
- Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.regionserver.SplitTransaction
  SplitTransaction.JournalEntry, SplitTransaction.SplitTransactionPhase, SplitTransaction.TransactionListener

Nested Classes
Modifier and Type	Class and Description
`static class`	`SplitTransactionImpl.JournalEntryImpl`

Field Summary

Fields
Modifier and Type Field and Description

SplitTransactionCoordination.SplitTransactionDetails std

Fields
Modifier and Type	Field and Description
`SplitTransactionCoordination.SplitTransactionDetails`	`std`

Constructor Summary

Constructors
Constructor and Description

SplitTransactionImpl(Region r, byte[] splitrow)
Constructor

Constructors
Constructor and Description
`SplitTransactionImpl(Region r, byte[] splitrow)` Constructor

Method Summary

Methods
Modifier and Type	Method and Description
`Put`	`addLocation(Put p, ServerName sn, long openSeqNum)`
`PairOfSameType<Region>`	`execute(Server server, RegionServerServices services)` Run the transaction.
`PairOfSameType<Region>`	`execute(Server server, RegionServerServices services, User user)` Run the transaction.
`List<SplitTransaction.JournalEntry>`	`getJournal()` Get the journal for the transaction.
`RegionServerServices`	`getRegionServerServices()` Get the RegonServerServices of the server running the transaction or rollback
`Server`	`getServer()` Get the Server running the transaction or rollback
`boolean`	`prepare()` Does checks on split inputs.
`SplitTransaction`	`registerTransactionListener(SplitTransaction.TransactionListener listener)` Register a listener for transaction preparation, execution, and possibly rollback phases.
`boolean`	`rollback(Server server, RegionServerServices services)` Roll back a failed transaction
`boolean`	`rollback(Server server, RegionServerServices services, User user)` Roll back a failed transaction
`PairOfSameType<Region>`	`stepsAfterPONR(Server server, RegionServerServices services, PairOfSameType<Region> regions)` Deprecated.
`PairOfSameType<Region>`	`stepsAfterPONR(Server server, RegionServerServices services, PairOfSameType<Region> regions, User user)`
`PairOfSameType<Region>`	`stepsBeforePONR(Server server, RegionServerServices services, boolean testing)`
`String`	`toString()`

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

- Field Detail
  - std
```
public SplitTransactionCoordination.SplitTransactionDetails std
```
- Constructor Detail
  - SplitTransactionImpl
```
public SplitTransactionImpl(Region r,
                    byte[] splitrow)
```
    Constructor
    
    Parameters:
    r - Region to split
    splitrow - Row to split around
- Method Detail
  - prepare
```
public boolean prepare()
                throws IOException
```
    Does checks on split inputs.
    
    Specified by:
    
    prepare in interface SplitTransaction
    
    Returns:
    true if the region is splittable else false if it is not (e.g. its already closed, etc.).
    
    Throws:
    
    IOException
  - stepsBeforePONR
```
public PairOfSameType<Region> stepsBeforePONR(Server server,
                                     RegionServerServices services,
                                     boolean testing)
                                       throws IOException
```
    Throws:
    
    IOException
  - execute
```
public PairOfSameType<Region> execute(Server server,
                             RegionServerServices services)
                               throws IOException
```
    Description copied from interface: SplitTransaction
    
    Run the transaction.
    
    Specified by:
    
    execute in interface SplitTransaction
    
    Parameters:
    server - Hosting server instance. Can be null when testing.
    services - Used to online/offline regions.
    
    Returns:
    Regions created
    
    Throws:
    
    IOException - If thrown, transaction failed. Call SplitTransaction.rollback(Server, RegionServerServices)
    See Also:
    SplitTransaction.rollback(Server, RegionServerServices)
  - execute
```
public PairOfSameType<Region> execute(Server server,
                             RegionServerServices services,
                             User user)
                               throws IOException
```
    Run the transaction.
    
    Specified by:
    
    execute in interface SplitTransaction
    
    Parameters:
    server - Hosting server instance. Can be null when testing
    services - Used to online/offline regions.
    
    Returns:
    Regions created
    
    Throws:
    
    IOException - If thrown, transaction failed. Call rollback(Server, RegionServerServices)
    
    IOException
    See Also:
    rollback(Server, RegionServerServices)
  - stepsAfterPONR
```
@Deprecated
public PairOfSameType<Region> stepsAfterPONR(Server server,
                                               RegionServerServices services,
                                               PairOfSameType<Region> regions)
                                      throws IOException
```
    Deprecated.
    
    Throws:
    
    IOException
  - stepsAfterPONR
```
public PairOfSameType<Region> stepsAfterPONR(Server server,
                                    RegionServerServices services,
                                    PairOfSameType<Region> regions,
                                    User user)
                                      throws IOException
```
    Throws:
    
    IOException
  - addLocation
```
public Put addLocation(Put p,
              ServerName sn,
              long openSeqNum)
```
  - rollback
```
public boolean rollback(Server server,
               RegionServerServices services)
                 throws IOException
```
    Description copied from interface: SplitTransaction
    
    Roll back a failed transaction
    
    Specified by:
    
    rollback in interface SplitTransaction
    
    Parameters:
    server - Hosting server instance (May be null when testing).
    
    Returns:
    True if we successfully rolled back, false if we got to the point of no return and so now need to abort the server to minimize damage.
    
    Throws:
    
    IOException - If thrown, rollback failed. Take drastic action.
  - rollback
```
public boolean rollback(Server server,
               RegionServerServices services,
               User user)
                 throws IOException
```
    Description copied from interface: SplitTransaction
    
    Roll back a failed transaction
    
    Specified by:
    
    rollback in interface SplitTransaction
    
    Parameters:
    server - Hosting server instance (May be null when testing).
    services -
    
    Returns:
    True if we successfully rolled back, false if we got to the point of no return and so now need to abort the server to minimize damage.
    
    Throws:
    
    IOException - If thrown, rollback failed. Take drastic action.
  - getJournal
```
public List<SplitTransaction.JournalEntry> getJournal()
```
    Description copied from interface: SplitTransaction
    
    Get the journal for the transaction.
    Journal entries are an opaque type represented as JournalEntry. They can also provide useful debugging information via their toString method.
    
    Specified by:
    
    getJournal in interface SplitTransaction
    
    Returns:
    the transaction journal
  - registerTransactionListener
```
public SplitTransaction registerTransactionListener(SplitTransaction.TransactionListener listener)
```
    Description copied from interface: SplitTransaction
    
    Register a listener for transaction preparation, execution, and possibly rollback phases.
    A listener can abort a transaction by throwing an exception.
    
    Specified by:
    
    registerTransactionListener in interface SplitTransaction
    
    Parameters:
    listener - the listener
    
    Returns:
    'this' for chaining
  - getServer
```
public Server getServer()
```
    Description copied from interface: SplitTransaction
    
    Get the Server running the transaction or rollback
    
    Specified by:
    
    getServer in interface SplitTransaction
    
    Returns:
    server instance
  - getRegionServerServices
```
public RegionServerServices getRegionServerServices()
```
    Description copied from interface: SplitTransaction
    
    Get the RegonServerServices of the server running the transaction or rollback
    
    Specified by:
    
    getRegionServerServices in interface SplitTransaction
    
    Returns:
    region server services
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class SplitTransactionImpl

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.regionserver.SplitTransaction

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

std

Constructor Detail

SplitTransactionImpl

Method Detail

prepare

stepsBeforePONR

execute

execute

stepsAfterPONR

stepsAfterPONR

addLocation

rollback

rollback

getJournal

registerTransactionListener

getServer

getRegionServerServices

toString