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java.lang.Objectorg.apache.hadoop.hbase.filter.RegExpRowFilter
public class RegExpRowFilter
Implementation of RowFilterInterface that can filter by rowkey regular
expression and/or individual column values (equals comparison only). Multiple
column filters imply an implicit conjunction of filter criteria.
Note that column value filtering in this interface has been replaced by
ColumnValueFilter.
| Constructor Summary | |
|---|---|
RegExpRowFilter()
Default constructor, filters nothing. |
|
RegExpRowFilter(String rowKeyRegExp)
Constructor that takes a row key regular expression to filter on. |
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RegExpRowFilter(String rowKeyRegExp,
Map<byte[],Cell> columnFilter)
Deprecated. Column filtering has been replaced by ColumnValueFilter
Constructor that takes a row key regular expression to filter on. |
|
| Method Summary | |
|---|---|
boolean |
filterAllRemaining()
Determines if the filter has decided that all remaining results should be filtered (skipped). |
boolean |
filterColumn(byte[] rowKey,
byte[] colKey,
byte[] data)
Filters on row key, column name, and column value. |
boolean |
filterRow(SortedMap<byte[],Cell> columns)
Filter on the fully assembled row. |
boolean |
filterRowKey(byte[] rowKey)
Filters on just a row key. |
boolean |
processAlways()
Returns whether or not the filter should always be processed in any filtering call. |
void |
readFields(DataInput in)
|
void |
reset()
Resets the state of the filter. |
void |
rowProcessed(boolean filtered,
byte[] rowKey)
Called to let filter know the final decision (to pass or filter) on a given row. |
void |
setColumnFilter(byte[] colKey,
byte[] value)
Deprecated. Column filtering has been replaced by ColumnValueFilter
Specify a value that must be matched for the given column. |
void |
setColumnFilters(Map<byte[],Cell> columnFilter)
Deprecated. Column filtering has been replaced by ColumnValueFilter
Set column filters for a number of columns. |
void |
validate(byte[][] columns)
Validates that this filter applies only to a subset of the given columns. |
void |
write(DataOutput out)
|
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public RegExpRowFilter()
public RegExpRowFilter(String rowKeyRegExp)
rowKeyRegExp -
@Deprecated
public RegExpRowFilter(String rowKeyRegExp,
Map<byte[],Cell> columnFilter)
ColumnValueFilter
Constructor that takes a row key regular expression to filter on.
rowKeyRegExp - columnFilter - | Method Detail |
|---|
public void rowProcessed(boolean filtered,
byte[] rowKey)
RowFilterInterface
rowProcessed in interface RowFilterInterfaceRowFilterSetpublic boolean processAlways()
RowFilterInterface
processAlways in interface RowFilterInterface
@Deprecated
public void setColumnFilter(byte[] colKey,
byte[] value)
ColumnValueFilter
Specify a value that must be matched for the given column.
colKey - the column to match onvalue - the value that must equal the stored value.@Deprecated public void setColumnFilters(Map<byte[],Cell> columnFilter)
ColumnValueFilter
Set column filters for a number of columns.
columnFilter - Map of columns with value criteria.public void reset()
RowFilterInterface
reset in interface RowFilterInterfacepublic boolean filterAllRemaining()
RowFilterInterface
filterAllRemaining in interface RowFilterInterfacepublic boolean filterRowKey(byte[] rowKey)
RowFilterInterface
filterRowKey in interface RowFilterInterface
public boolean filterColumn(byte[] rowKey,
byte[] colKey,
byte[] data)
RowFilterInterface
filterColumn in interface RowFilterInterfacerowKey - row key to filter on.colKey - column name to filter ondata - column value to filter on
public boolean filterRow(SortedMap<byte[],Cell> columns)
RowFilterInterface
filterRow in interface RowFilterInterface
public void readFields(DataInput in)
throws IOException
readFields in interface org.apache.hadoop.io.WritableIOExceptionpublic void validate(byte[][] columns)
RowFilterInterface
validate in interface RowFilterInterface
public void write(DataOutput out)
throws IOException
write in interface org.apache.hadoop.io.WritableIOException
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