co.cask.tephra.hbase11.coprocessor

Class CellSkipFilter

java.lang.Object

org.apache.hadoop.hbase.filter.Filter

org.apache.hadoop.hbase.filter.FilterBase

co.cask.tephra.hbase11.coprocessor.CellSkipFilter

public class CellSkipFilter
extends org.apache.hadoop.hbase.filter.FilterBase

Filter that encapsulates another Filter. It remembers the last KeyValue for which the underlying filter returned the ReturnCode#NEXT_COL or ReturnCode#INCLUDE_AND_NEXT_COL, so that when filterKeyValue(org.apache.hadoop.hbase.Cell) is called again for the same KeyValue with different version, it returns ReturnCode#NEXT_COL directly without consulting the underlying Filter. Please see TEPHRA-169 for more details.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hbase.filter.Filter

org.apache.hadoop.hbase.filter.Filter.ReturnCode

Field Summary

Fields inherited from class org.apache.hadoop.hbase.filter.Filter

reversed

Constructor Summary

Constructors

Constructor and Description
CellSkipFilter(org.apache.hadoop.hbase.filter.Filter filter)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	filterAllRemaining()
org.apache.hadoop.hbase.filter.Filter.ReturnCode	filterKeyValue(org.apache.hadoop.hbase.Cell cell)
boolean	filterRow()
void	filterRowCells(List<org.apache.hadoop.hbase.Cell> kvs)
boolean	filterRowKey(byte[] buffer, int offset, int length)
org.apache.hadoop.hbase.Cell	getNextCellHint(org.apache.hadoop.hbase.Cell currentKV)
org.apache.hadoop.hbase.KeyValue	getNextKeyHint(org.apache.hadoop.hbase.KeyValue currentKV)
boolean	hasFilterRow()
boolean	isFamilyEssential(byte[] name)
void	reset()
byte[]	toByteArray()
org.apache.hadoop.hbase.Cell	transformCell(org.apache.hadoop.hbase.Cell cell)

Methods inherited from class org.apache.hadoop.hbase.filter.FilterBase

createFilterFromArguments, toString, transform

Methods inherited from class org.apache.hadoop.hbase.filter.Filter

isReversed, parseFrom, setReversed

Methods inherited from class java.lang.Object

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

Constructor Detail

CellSkipFilter

public CellSkipFilter(org.apache.hadoop.hbase.filter.Filter filter)

Method Detail

filterKeyValue

public org.apache.hadoop.hbase.filter.Filter.ReturnCode filterKeyValue(org.apache.hadoop.hbase.Cell cell)
                                                                throws IOException

Specified by:

filterKeyValue in class org.apache.hadoop.hbase.filter.Filter

Throws:

IOException

filterRow

public boolean filterRow()
                  throws IOException

Overrides:

filterRow in class org.apache.hadoop.hbase.filter.FilterBase

Throws:

IOException

transformCell

public org.apache.hadoop.hbase.Cell transformCell(org.apache.hadoop.hbase.Cell cell)
                                           throws IOException

Overrides:

transformCell in class org.apache.hadoop.hbase.filter.FilterBase

Throws:

IOException

reset

public void reset()
           throws IOException

Overrides:

reset in class org.apache.hadoop.hbase.filter.FilterBase

Throws:

IOException

filterRowKey

public boolean filterRowKey(byte[] buffer,
                   int offset,
                   int length)
                     throws IOException

Overrides:

filterRowKey in class org.apache.hadoop.hbase.filter.FilterBase

Throws:

IOException

filterAllRemaining

public boolean filterAllRemaining()
                           throws IOException

Overrides:

filterAllRemaining in class org.apache.hadoop.hbase.filter.FilterBase

Throws:

IOException

filterRowCells

public void filterRowCells(List<org.apache.hadoop.hbase.Cell> kvs)
                    throws IOException

Overrides:

filterRowCells in class org.apache.hadoop.hbase.filter.FilterBase

Throws:

IOException

hasFilterRow

public boolean hasFilterRow()

Overrides:

hasFilterRow in class org.apache.hadoop.hbase.filter.FilterBase

getNextKeyHint

public org.apache.hadoop.hbase.KeyValue getNextKeyHint(org.apache.hadoop.hbase.KeyValue currentKV)
                                                throws IOException

Overrides:

getNextKeyHint in class org.apache.hadoop.hbase.filter.FilterBase

Throws:

IOException

getNextCellHint

public org.apache.hadoop.hbase.Cell getNextCellHint(org.apache.hadoop.hbase.Cell currentKV)
                                             throws IOException

Overrides:

getNextCellHint in class org.apache.hadoop.hbase.filter.FilterBase

Throws:

IOException

isFamilyEssential

public boolean isFamilyEssential(byte[] name)
                          throws IOException

Overrides:

isFamilyEssential in class org.apache.hadoop.hbase.filter.FilterBase

Throws:

IOException

toByteArray

public byte[] toByteArray()
                   throws IOException

Overrides:

toByteArray in class org.apache.hadoop.hbase.filter.FilterBase

Throws:

IOException