oceanbase::ObCompaction类 参考

Represents a compaction task in the LSM-Tree. 更多...

#include <ob_compaction.h>

Public 成员函数
	ObCompaction (int level)
	Constructs a compaction task targeting a specific level. 更多...
int	level () const
	Gets the target level for this compaction. 更多...
shared_ptr< ObSSTable >	input (int which, int i) const
	Retrieves an SSTable from the input SSTable list. 更多...
int	size () const
	Computes the total number of input SSTables for the compaction task. 更多...
const vector< shared_ptr< ObSSTable > > &	inputs (int which) const
	Retrieves the vector of SSTables from the specified input level.

Private 属性
std::vector< shared_ptr< ObSSTable > >	inputs_ [2]
	Each compaction reads inputs from "level_" and "level_+1"
int	level_
	The current level of SSTables involved in the compaction.

友元
class	ObCompactionPicker
	Grants access to private members of this class to compaction picker classes. 更多...
class	TiredCompactionPicker
class	LeveledCompactionPicker

详细描述

Represents a compaction task in the LSM-Tree.

This class encapsulates the metadata and operations for a single compaction task, including input SSTables and the target level of the compaction.

构造及析构函数说明

ObCompaction()

oceanbase::ObCompaction::ObCompaction ( int  level )

inlineexplicit

Constructs a compaction task targeting a specific level.

参数

level

The current level of the SSTables involved in the compaction.

成员函数说明

input()

shared_ptr< ObSSTable > oceanbase::ObCompaction::input ( int  which, int  i  ) const

inline

Retrieves an SSTable from the input SSTable list.

参数

which	Index indicating which level's inputs to access (0 for level_, 1 for level_ + 1).
i	Index of the SSTable within the specified level's inputs.

返回

A shared pointer to the specified SSTable.

level()

int oceanbase::ObCompaction::level ( ) const

inline

Gets the target level for this compaction.

返回

The integer value representing the level.

size()

int oceanbase::ObCompaction::size ( ) const

inline

Computes the total number of input SSTables for the compaction task.

返回

The total number of input SSTables across both levels.

友元及相关函数文档

ObCompactionPicker

friend class ObCompactionPicker

friend

Grants access to private members of this class to compaction picker classes.

参见

ObCompactionPicker, TiredCompactionPicker, LeveledCompactionPicker

---

该类的文档由以下文件生成:

• src/oblsm/compaction/ob_compaction.h