@InterfaceAudience.Public public class QualifierFilter extends CompareFilter
This filter can be wrapped with WhileMatchFilter
and SkipFilter
to add more
control.
Multiple filters can be combined using FilterList
.
If an already known column qualifier is looked for, use
Get.addColumn(byte[], byte[])
directly rather than a filter.
Filter.ReturnCode
comparator, op
Constructor and Description |
---|
QualifierFilter(CompareOperator op,
ByteArrayComparable qualifierComparator)
Constructor.
|
Modifier and Type | Method and Description |
---|---|
static Filter |
createFilterFromArguments(ArrayList<byte[]> filterArguments) |
boolean |
equals(Object obj) |
Filter.ReturnCode |
filterCell(Cell c)
A way to filter based on the column family, column qualifier and/or the column value.
|
int |
hashCode() |
static QualifierFilter |
parseFrom(byte[] pbBytes)
Parse a serialized representation of
QualifierFilter |
byte[] |
toByteArray()
Returns The filter serialized using pb
|
compareFamily, compareQualifier, compareRow, compareValue, extractArguments, filterRowKey, getComparator, getCompareOperator, toString
filterAllRemaining, filterRow, filterRowCells, getNextCellHint, hasFilterRow, isFamilyEssential, reset, transformCell
isReversed, setReversed
public QualifierFilter(CompareOperator op, ByteArrayComparable qualifierComparator)
op
- the compare op for column qualifier matchingqualifierComparator
- the comparator for column qualifier matchingpublic 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 static Filter createFilterFromArguments(ArrayList<byte[]> filterArguments)
public byte[] toByteArray()
toByteArray
in class org.apache.hadoop.hbase.filter.FilterBase
public static QualifierFilter parseFrom(byte[] pbBytes) throws org.apache.hadoop.hbase.exceptions.DeserializationException
QualifierFilter
pbBytes
- A pb serialized QualifierFilter
instanceQualifierFilter
made from bytes
org.apache.hadoop.hbase.exceptions.DeserializationException
- if an error occurredtoByteArray()
public boolean equals(Object obj)
equals
in class CompareFilter
public int hashCode()
hashCode
in class CompareFilter
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