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

Class MajorCompactionScanQueryMatcher

java.lang.Object

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

org.apache.hadoop.hbase.regionserver.querymatcher.CompactionScanQueryMatcher

org.apache.hadoop.hbase.regionserver.querymatcher.DropDeletesCompactionScanQueryMatcher

org.apache.hadoop.hbase.regionserver.querymatcher.MajorCompactionScanQueryMatcher

All Implemented Interfaces:

ShipperListener

@Private
public class MajorCompactionScanQueryMatcher
extends DropDeletesCompactionScanQueryMatcher

Query matcher for major compaction.

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.DropDeletesCompactionScanQueryMatcher

earliestPutTs, timeToPurgeDeletes

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

deletes, keepDeletedCells, maxReadPointToTrackVersions

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

columns, currentRow, now, oldestUnexpiredTS, rowComparator, startKey

Constructor Summary

Constructors

Constructor	Description
MajorCompactionScanQueryMatcher(ScanInfo scanInfo, DeleteTracker deletes, ColumnTracker columns, long readPointToUse, long earliestPutTs, long oldestUnexpiredTS, long now)

Method Summary

Modifier and Type	Method	Description
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)

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

tryDropDelete

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

beforeShipped, create, getFilter, getNextKeyHint, hasNullColumnInQuery, isUserScan, moreRowsMayExistAfter, reset, trackDelete

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

MajorCompactionScanQueryMatcher

public MajorCompactionScanQueryMatcher(ScanInfo scanInfo,
 DeleteTracker deletes,
 ColumnTracker columns,
 long readPointToUse,
 long earliestPutTs,
 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.