@InterfaceAudience.Public public class ColumnPrefixFilter extends org.apache.hadoop.hbase.filter.FilterBase
Filter.ReturnCode
Modifier and Type | Field and Description |
---|---|
protected byte[] |
prefix |
Constructor and Description |
---|
ColumnPrefixFilter(byte[] prefix) |
Modifier and Type | Method and Description |
---|---|
static Filter |
createFilterFromArguments(ArrayList<byte[]> filterArguments) |
boolean |
equals(Object obj) |
Filter.ReturnCode |
filterCell(Cell cell)
A way to filter based on the column family, column qualifier and/or the column value.
|
Filter.ReturnCode |
filterColumn(Cell cell) |
boolean |
filterRowKey(Cell cell)
Filters a row based on the row key.
|
Cell |
getNextCellHint(Cell cell)
Filters that are not sure which key must be next seeked to, can inherit this implementation
that, by default, returns a null Cell.
|
byte[] |
getPrefix() |
int |
hashCode() |
static ColumnPrefixFilter |
parseFrom(byte[] pbBytes)
Parses a serialized representation of the
ColumnPrefixFilter |
byte[] |
toByteArray()
Returns The filter serialized using pb
|
String |
toString()
Return filter's info for debugging and logging purpose.
|
filterAllRemaining, filterRow, filterRowCells, hasFilterRow, isFamilyEssential, reset, transformCell
isReversed, setReversed
protected byte[] prefix
public ColumnPrefixFilter(byte[] prefix)
public byte[] getPrefix()
public boolean filterRowKey(Cell cell) throws IOException
Filter
Filter.filterCell(Cell)
below. If
Filter.filterAllRemaining()
returns true, then Filter.filterRowKey(Cell)
should also return
true. Concrete implementers can signal a failure condition in their code by throwing an
IOException
.filterRowKey
in class org.apache.hadoop.hbase.filter.FilterBase
cell
- The first cell coming in the new rowIOException
- in case an I/O or an filter specific failure needs to be signaled.public Filter.ReturnCode filterCell(Cell cell)
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
cell
- the Cell in questionFilter.ReturnCode
public Filter.ReturnCode filterColumn(Cell cell)
public static Filter createFilterFromArguments(ArrayList<byte[]> filterArguments)
public byte[] toByteArray()
toByteArray
in class org.apache.hadoop.hbase.filter.FilterBase
public static ColumnPrefixFilter parseFrom(byte[] pbBytes) throws org.apache.hadoop.hbase.exceptions.DeserializationException
ColumnPrefixFilter
pbBytes
- A pb serialized ColumnPrefixFilter
instanceColumnPrefixFilter
made from bytes
org.apache.hadoop.hbase.exceptions.DeserializationException
- if an error occurredtoByteArray()
public Cell getNextCellHint(Cell cell)
org.apache.hadoop.hbase.filter.FilterBase
IOException
.getNextCellHint
in class org.apache.hadoop.hbase.filter.FilterBase
public String toString()
org.apache.hadoop.hbase.filter.FilterBase
toString
in class org.apache.hadoop.hbase.filter.FilterBase
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