org.apache.hadoop.hbase.regionserver.querymatcher

类 NormalUserScanQueryMatcher

java.lang.Object

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

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

org.apache.hadoop.hbase.regionserver.querymatcher.NormalUserScanQueryMatcher

所有已实现的接口:

ShipperListener

@InterfaceAudience.Private
public abstract class NormalUserScanQueryMatcher
extends UserScanQueryMatcher

Query matcher for normal user scan.

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 boolean	seePastDeleteMarkers whether time range queries can see rows "behind" a delete

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

filter, hasNullColumn, stopRow, tr

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

columns, currentRow, now, oldestUnexpiredTS, rowComparator, startKey

构造器概要

构造器

限定符	构造器和说明
protected	NormalUserScanQueryMatcher(Scan scan, ScanInfo scanInfo, ColumnTracker columns, boolean hasNullColumn, DeleteTracker deletes, long oldestUnexpiredTS, long now)

方法概要

限定符和类型	方法和说明
void	beforeShipped() The action that needs to be performed before Shipper.shipped() is performed
static NormalUserScanQueryMatcher	create(Scan scan, ScanInfo scanInfo, ColumnTracker columns, DeleteTracker deletes, boolean hasNullColumn, long oldestUnexpiredTS, long now)
protected boolean	isGet()
ScanQueryMatcher.MatchCode	match(Cell 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()

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

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

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

checkDeleted, clearCurrentRow, compareKeyForNextColumn, compareKeyForNextRow, createStartKeyFromRow, currentRow, getKeyForNextColumn, getStartKey, getTrackers, 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

seePastDeleteMarkers

protected final boolean seePastDeleteMarkers

whether time range queries can see rows "behind" a delete

构造器详细资料

NormalUserScanQueryMatcher

protected NormalUserScanQueryMatcher(Scan scan,
                                     ScanInfo scanInfo,
                                     ColumnTracker columns,
                                     boolean hasNullColumn,
                                     DeleteTracker deletes,
                                     long oldestUnexpiredTS,
                                     long now)

方法详细资料

beforeShipped

public void beforeShipped()
                   throws IOException

从接口复制的说明: ShipperListener

The action that needs to be performed before Shipper.shipped() is performed

指定者:

beforeShipped 在接口中 ShipperListener

覆盖:

beforeShipped 在类中 UserScanQueryMatcher

抛出:

IOException

match

public ScanQueryMatcher.MatchCode match(Cell cell)
                                 throws IOException

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.

reset

protected void reset()

指定者:

reset 在类中 ScanQueryMatcher

isGet

protected boolean isGet()

指定者:

isGet 在类中 UserScanQueryMatcher

create

public static NormalUserScanQueryMatcher create(Scan scan,
                                                ScanInfo scanInfo,
                                                ColumnTracker columns,
                                                DeleteTracker deletes,
                                                boolean hasNullColumn,
                                                long oldestUnexpiredTS,
                                                long now)
                                         throws IOException

抛出:

IOException