org.apache.hadoop.hbase.regionserver.querymatcher

类 LegacyScanQueryMatcher

java.lang.Object

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

org.apache.hadoop.hbase.regionserver.querymatcher.LegacyScanQueryMatcher

已过时。

@Deprecated
@InterfaceAudience.Private
public class LegacyScanQueryMatcher
extends ScanQueryMatcher

The old query matcher implementation. Used to keep compatibility for coprocessor that could overwrite the StoreScanner before compaction. Should be removed once we find a better way to do filtering during compaction.

嵌套类概要

从类继承的嵌套类/接口 org.apache.hadoop.hbase.regionserver.querymatcher.ScanQueryMatcher

ScanQueryMatcher.MatchCode

字段概要

字段

限定符和类型	字段和说明
protected long	earliestPutTs 已过时。 Oldest put in any of the involved store files Used to decide whether it is ok to delete family delete marker of this store keeps deleted KVs.

从类继承的字段 org.apache.hadoop.hbase.regionserver.querymatcher.ScanQueryMatcher

columns, currentRow, now, oldestUnexpiredTS, rowComparator, startKey

方法概要

方法

限定符和类型	方法和说明
static LegacyScanQueryMatcher	create(Scan scan, ScanInfo scanInfo, NavigableSet<byte[]> columns, ScanType scanType, long readPointToUse, long earliestPutTs, long oldestUnexpiredTS, long now, byte[] dropDeletesFromRow, byte[] dropDeletesToRow, RegionCoprocessorHost regionCoprocessorHost) 已过时。
Filter	getFilter() 已过时。
Cell	getNextKeyHint(Cell cell) 已过时。 Delegate to Filter.getNextCellHint(Cell).
boolean	hasNullColumnInQuery() 已过时。
boolean	isUserScan() 已过时。
ScanQueryMatcher.MatchCode	match(Cell cell) 已过时。 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)
boolean	moreRowsMayExistAfter(Cell cell) 已过时。
protected void	reset() 已过时。

从类继承的方法 org.apache.hadoop.hbase.regionserver.querymatcher.ScanQueryMatcher

checkDeleted, clearCurrentRow, compareKeyForNextColumn, compareKeyForNextRow, createStartKeyFromRow, currentRow, getKeyForNextColumn, getStartKey, instantiateDeleteTracker, preCheck, setToNewRow

从类继承的方法 java.lang.Object

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

字段详细资料

earliestPutTs

protected final long earliestPutTs

已过时。

Oldest put in any of the involved store files Used to decide whether it is ok to delete family delete marker of this store keeps deleted KVs.

方法详细资料

match

public ScanQueryMatcher.MatchCode match(Cell cell)
                                 throws IOException

已过时。

从类复制的说明: 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)

指定者:

match 在类中 ScanQueryMatcher

参数:

cell - KeyValue to check

返回:

The match code instance.

抛出:

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

hasNullColumnInQuery

public boolean hasNullColumnInQuery()

已过时。

指定者:

hasNullColumnInQuery 在类中 ScanQueryMatcher

返回:

whether there is an null column in the query

reset

protected void reset()

已过时。

指定者:

reset 在类中 ScanQueryMatcher

isUserScan

public boolean isUserScan()

已过时。

指定者:

isUserScan 在类中 ScanQueryMatcher

moreRowsMayExistAfter

public boolean moreRowsMayExistAfter(Cell cell)

已过时。

指定者:

moreRowsMayExistAfter 在类中 ScanQueryMatcher

返回:

Returns false if we know there are no more rows to be scanned (We've reached the stopRow or we are scanning on row only because this Scan is for a Get, etc.

getFilter

public Filter getFilter()

已过时。

指定者:

getFilter 在类中 ScanQueryMatcher

返回:

the Filter

getNextKeyHint

public Cell getNextKeyHint(Cell cell)
                    throws IOException

已过时。

从类复制的说明: ScanQueryMatcher

Delegate to Filter.getNextCellHint(Cell). If no filter, return null.

指定者:

getNextKeyHint 在类中 ScanQueryMatcher

抛出:

IOException

create

public static LegacyScanQueryMatcher create(Scan scan,
                            ScanInfo scanInfo,
                            NavigableSet<byte[]> columns,
                            ScanType scanType,
                            long readPointToUse,
                            long earliestPutTs,
                            long oldestUnexpiredTS,
                            long now,
                            byte[] dropDeletesFromRow,
                            byte[] dropDeletesToRow,
                            RegionCoprocessorHost regionCoprocessorHost)
                                     throws IOException

已过时。

抛出:

IOException