LsmRecordScanner类 参考

类 LsmRecordScanner 继承关系图:

Public 成员函数
	LsmRecordScanner (Table *table, ObLsm *oblsm, Trx *trx)
RC	open_scan () override
	打开 RecordScanner 更多...
RC	close_scan () override
	关闭 RecordScanner，释放相应的资源 更多...
RC	next (Record &record) override
	获取下一条记录 更多...
virtual RC	open_scan ()=0
	打开 RecordScanner 更多...
virtual RC	close_scan ()=0
	关闭 RecordScanner，释放相应的资源 更多...
virtual RC	next (Record &record)=0
	获取下一条记录 更多...

Private 属性
Table *	table_ = nullptr
ObLsm *	oblsm_ = nullptr
Trx *	trx_ = nullptr
ObLsmIterator *	lsm_iter_ = nullptr
RowTuple	tuple_
Record	record_

成员函数说明

close_scan()

RC LsmRecordScanner::close_scan ( )

overridevirtual

关闭 RecordScanner，释放相应的资源

实现了 RecordScanner.

next()

RC LsmRecordScanner::next ( Record &  record )

overridevirtual

获取下一条记录

参数

record

返回的下一条记录

实现了 RecordScanner.

open_scan()

RC LsmRecordScanner::open_scan ( )

overridevirtual

打开 RecordScanner

实现了 RecordScanner.

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该类的文档由以下文件生成:

• src/observer/storage/record/lsm_record_scanner.h
• src/observer/storage/record/lsm_record_scanner.cpp