@InterfaceAudience.Public public class FuzzyRowFilter extends org.apache.hadoop.hbase.filter.FilterBase
row key = "????_99_????_01" (one can use any value instead of "?") fuzzy info = "\x01\x01\x01\x01\x00\x00\x00\x00\x01\x01\x01\x01\x00\x00\x00"I.e. fuzzy info tells the matching mask is "????_99_????_01", where at ? can be any value.
Filter.ReturnCode
Constructor and Description |
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FuzzyRowFilter(List<Pair<byte[],byte[]>> fuzzyKeysData) |
Modifier and Type | Method and Description |
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boolean |
equals(Object obj) |
boolean |
filterAllRemaining()
Filters that never filter all remaining can inherit this implementation that never stops the
filter early.
|
Filter.ReturnCode |
filterCell(Cell c)
A way to filter based on the column family, column qualifier and/or the column value.
|
boolean |
filterRow()
Filters that never filter by rows based on previously gathered state from
Filter.filterCell(Cell) can inherit this implementation that never filters a row. |
Cell |
getNextCellHint(Cell currentCell)
Filters that are not sure which key must be next seeked to, can inherit this implementation
that, by default, returns a null Cell.
|
int |
hashCode() |
static FuzzyRowFilter |
parseFrom(byte[] pbBytes)
Parse a serialized representation of
FuzzyRowFilter |
void |
reset()
Filters that are purely stateless and do nothing in their reset() methods can inherit this
null/empty implementation.
|
byte[] |
toByteArray()
Returns The filter serialized using pb
|
String |
toString()
Return filter's info for debugging and logging purpose.
|
createFilterFromArguments, filterRowCells, filterRowKey, hasFilterRow, isFamilyEssential, transformCell
isReversed, setReversed
public FuzzyRowFilter(List<Pair<byte[],byte[]>> fuzzyKeysData)
public void reset() throws IOException
org.apache.hadoop.hbase.filter.FilterBase
IOException
.reset
in class org.apache.hadoop.hbase.filter.FilterBase
IOException
- in case an I/O or an filter specific failure needs to be signaled.public boolean filterRow() throws IOException
org.apache.hadoop.hbase.filter.FilterBase
Filter.filterCell(Cell)
can inherit this implementation that never filters a row.
Last chance to veto row based on previous Filter.filterCell(Cell)
calls. The filter needs to
retain state then return a particular value for this call if they wish to exclude a row if a
certain column is missing (for example). Concrete implementers can signal a failure condition
in their code by throwing an IOException
.filterRow
in class org.apache.hadoop.hbase.filter.FilterBase
IOException
- in case an I/O or an filter specific failure needs to be signaled.public Filter.ReturnCode filterCell(Cell c)
Filter
ReturnCode.NEXT_ROW
, it should return
ReturnCode.NEXT_ROW
until Filter.reset()
is called just in case the caller calls
for the next row. Concrete implementers can signal a failure condition in their code by
throwing an IOException
.filterCell
in class Filter
c
- the Cell in questionFilter.ReturnCode
public Cell getNextCellHint(Cell currentCell)
org.apache.hadoop.hbase.filter.FilterBase
IOException
.getNextCellHint
in class org.apache.hadoop.hbase.filter.FilterBase
public boolean filterAllRemaining()
org.apache.hadoop.hbase.filter.FilterBase
IOException
.filterAllRemaining
in class org.apache.hadoop.hbase.filter.FilterBase
public byte[] toByteArray()
toByteArray
in class org.apache.hadoop.hbase.filter.FilterBase
public static FuzzyRowFilter parseFrom(byte[] pbBytes) throws org.apache.hadoop.hbase.exceptions.DeserializationException
FuzzyRowFilter
pbBytes
- A pb serialized FuzzyRowFilter
instanceFuzzyRowFilter
made from bytes
org.apache.hadoop.hbase.exceptions.DeserializationException
- if an error occurredtoByteArray()
public String toString()
org.apache.hadoop.hbase.filter.FilterBase
toString
in class org.apache.hadoop.hbase.filter.FilterBase
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