org.apache.hadoop.hbase.regionserver

Class MiniBatchOperationInProgress<T>

java.lang.Object

org.apache.hadoop.hbase.regionserver.MiniBatchOperationInProgress<T>

@InterfaceAudience.LimitedPrivate(value="Coprocesssor")
public class MiniBatchOperationInProgress<T>
extends Object

Wraps together the mutations which are applied as a batch to the region and their operation status and WALEdits.

See Also:

RegionObserver.preBatchMutate( org.apache.hadoop.hbase.coprocessor.ObserverContext, MiniBatchOperationInProgress), RegionObserver.postBatchMutate( org.apache.hadoop.hbase.coprocessor.ObserverContext, MiniBatchOperationInProgress)

Field Summary

Fields

Modifier and Type	Field and Description
private int	cellCount
private int	firstIndex
private int	lastIndexExclusive
private int	numOfDeletes
private int	numOfPuts
private T[]	operations
private Mutation[][]	operationsFromCoprocessors
private int	readyToWriteCount
private OperationStatus[]	retCodeDetails
private WALEdit[]	walEditsFromCoprocessors

Constructor Summary

Constructors

Constructor and Description
MiniBatchOperationInProgress(T[] operations, OperationStatus[] retCodeDetails, WALEdit[] walEditsFromCoprocessors, int firstIndex, int lastIndexExclusive, int readyToWriteCount)

Method Summary

Modifier and Type	Method and Description
void	addCellCount(int cellCount)
void	addOperationsFromCP(int index, Mutation[] newOperations) Add more Mutations corresponding to the Mutation at the given index to be committed atomically in the same batch.
private int	getAbsoluteIndex(int index)
int	getCellCount()
int	getLastIndexExclusive()
int	getNumOfDeletes()
int	getNumOfPuts()
T	getOperation(int index)
Mutation[]	getOperationsFromCoprocessors(int index)
OperationStatus	getOperationStatus(int index)
int	getReadyToWriteCount()
WALEdit	getWalEdit(int index)
void	incrementNumOfDeletes()
void	incrementNumOfPuts()
void	setOperationStatus(int index, OperationStatus opStatus) Sets the status code for the operation(Mutation) at the specified position.
void	setWalEdit(int index, WALEdit walEdit) Sets the walEdit for the operation(Mutation) at the specified position.
int	size()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

operations

private final T[] operations

operationsFromCoprocessors

private Mutation[][] operationsFromCoprocessors

retCodeDetails

private final OperationStatus[] retCodeDetails

walEditsFromCoprocessors

private final WALEdit[] walEditsFromCoprocessors

firstIndex

private final int firstIndex

lastIndexExclusive

private final int lastIndexExclusive

readyToWriteCount

private int readyToWriteCount

cellCount

private int cellCount

numOfPuts

private int numOfPuts

numOfDeletes

private int numOfDeletes

Constructor Detail

MiniBatchOperationInProgress

public MiniBatchOperationInProgress(T[] operations,
                                    OperationStatus[] retCodeDetails,
                                    WALEdit[] walEditsFromCoprocessors,
                                    int firstIndex,
                                    int lastIndexExclusive,
                                    int readyToWriteCount)

Method Detail

size

public int size()

Returns:

The number of operations(Mutations) involved in this batch.

getOperation

public T getOperation(int index)

Parameters:

index -

Returns:

The operation(Mutation) at the specified position.

setOperationStatus

public void setOperationStatus(int index,
                               OperationStatus opStatus)

Sets the status code for the operation(Mutation) at the specified position. By setting this status, RegionObserver can make HRegion to skip Mutations.

Parameters:

index -

opStatus -

getOperationStatus

public OperationStatus getOperationStatus(int index)

Parameters:

index -

Returns:

Gets the status code for the operation(Mutation) at the specified position.

setWalEdit

public void setWalEdit(int index,
                       WALEdit walEdit)

Sets the walEdit for the operation(Mutation) at the specified position.

Parameters:

index -

walEdit -

getWalEdit

public WALEdit getWalEdit(int index)

Parameters:

index -

Returns:

Gets the walEdit for the operation(Mutation) at the specified position.

getAbsoluteIndex

private int getAbsoluteIndex(int index)

addOperationsFromCP

public void addOperationsFromCP(int index,
                                Mutation[] newOperations)

Add more Mutations corresponding to the Mutation at the given index to be committed atomically in the same batch. These mutations are applied to the WAL and applied to the memstore as well. The timestamp of the cells in the given Mutations MUST be obtained from the original mutation. Note: The durability from CP will be replaced by the durability of corresponding mutation.

Parameters:

index - the index that corresponds to the original mutation index in the batch

newOperations - the Mutations to add

getOperationsFromCoprocessors

public Mutation[] getOperationsFromCoprocessors(int index)

getReadyToWriteCount

public int getReadyToWriteCount()

getLastIndexExclusive

public int getLastIndexExclusive()

getCellCount

public int getCellCount()

addCellCount

public void addCellCount(int cellCount)

getNumOfPuts

public int getNumOfPuts()

incrementNumOfPuts

public void incrementNumOfPuts()

getNumOfDeletes

public int getNumOfDeletes()

incrementNumOfDeletes

public void incrementNumOfDeletes()