Package org.apache.hadoop.hbase.regionserver.querymatcher

Class RawScanQueryMatcher

java.lang.Object

org.apache.hadoop.hbase.regionserver.querymatcher.ScanQueryMatcher

org.apache.hadoop.hbase.regionserver.querymatcher.UserScanQueryMatcher

org.apache.hadoop.hbase.regionserver.querymatcher.RawScanQueryMatcher

All Implemented Interfaces:

ShipperListener

@Private
public abstract class RawScanQueryMatcher
extends UserScanQueryMatcher

Query matcher for raw scan.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hbase.regionserver.querymatcher.ScanQueryMatcher

ScanQueryMatcher.MatchCode

Field Summary

Fields inherited from class org.apache.hadoop.hbase.regionserver.querymatcher.UserScanQueryMatcher

filter, hasNullColumn, stopRow, tr

Fields inherited from class org.apache.hadoop.hbase.regionserver.querymatcher.ScanQueryMatcher

columns, currentRow, now, oldestUnexpiredTS, rowComparator, startKey

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	RawScanQueryMatcher(Scan scan, ScanInfo scanInfo, ColumnTracker columns, boolean hasNullColumn, long oldestUnexpiredTS, long now)

Method Summary

Modifier and Type	Method	Description
static RawScanQueryMatcher	create(Scan scan, ScanInfo scanInfo, ColumnTracker columns, boolean hasNullColumn, long oldestUnexpiredTS, long now)
protected boolean	isGet()
ScanQueryMatcher.MatchCode	match(ExtendedCell cell)	Determines if the caller should do one of several things: seek/skip to the next row (MatchCode.SEEK_NEXT_ROW) seek/skip to the next column (MatchCode.SEEK_NEXT_COL) include the current KeyValue (MatchCode.INCLUDE) ignore the current KeyValue (MatchCode.SKIP) got to the next row (MatchCode.DONE)
protected void	reset()

Methods inherited from class org.apache.hadoop.hbase.regionserver.querymatcher.UserScanQueryMatcher

beforeShipped, create, getFilter, getNextKeyHint, hasNullColumnInQuery, isUserScan, matchColumn, moreRowsMayExistAfter, moreRowsMayExistsAfter

Methods inherited from class org.apache.hadoop.hbase.regionserver.querymatcher.ScanQueryMatcher

checkColumn, checkDeleted, clearCurrentRow, compareKeyForNextColumn, compareKeyForNextRow, createStartKeyFromRow, currentRow, getKeyForNextColumn, getStartKey, getTrackers, preCheck, setToNewRow

Methods inherited from class java.lang.Object

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

Constructor Details

RawScanQueryMatcher

protected RawScanQueryMatcher(Scan scan,
 ScanInfo scanInfo,
 ColumnTracker columns,
 boolean hasNullColumn,
 long oldestUnexpiredTS,
 long now)

Method Details

match

public ScanQueryMatcher.MatchCode match(ExtendedCell cell)
                                 throws IOException

Description copied from class: ScanQueryMatcher

Determines if the caller should do one of several things:

• seek/skip to the next row (MatchCode.SEEK_NEXT_ROW)
• seek/skip to the next column (MatchCode.SEEK_NEXT_COL)
• include the current KeyValue (MatchCode.INCLUDE)
• ignore the current KeyValue (MatchCode.SKIP)
• got to the next row (MatchCode.DONE)

Specified by:

match in class ScanQueryMatcher

Parameters:

cell - KeyValue to check

Returns:

The match code instance.

Throws:

IOException - in case there is an internal consistency problem caused by a data corruption.

reset

protected void reset()

Specified by:

reset in class ScanQueryMatcher

isGet

protected boolean isGet()

Specified by:

isGet in class UserScanQueryMatcher

create

public static RawScanQueryMatcher create(Scan scan,
 ScanInfo scanInfo,
 ColumnTracker columns,
 boolean hasNullColumn,
 long oldestUnexpiredTS,
 long now)