caffe2::db::DB Class Reference

An abstract class for accessing a database of key-value pairs. More...

#include <db.h>

Inheritance diagram for caffe2::db::DB:

Public Member Functions
	DB (const string &source, Mode mode)
virtual void	Close ()=0
	Closes the database.
virtual std::unique_ptr< Cursor >	NewCursor ()=0
	Returns a cursor to read the database. More...
virtual std::unique_ptr< Transaction >	NewTransaction ()=0
	Returns a transaction to write data to the database. More...

Protected Member Functions
	DISABLE_COPY_AND_ASSIGN (DB)

Protected Attributes
Mode	mode_

Detailed Description

An abstract class for accessing a database of key-value pairs.

Definition at line 80 of file db.h.

Member Function Documentation

NewCursor()

virtual std::unique_ptr<Cursor> caffe2::db::DB::NewCursor ( )

pure virtual

Returns a cursor to read the database.

The caller takes the ownership of the pointer.

Implemented in caffe2::db::MiniDB, caffe2::db::LMDB, caffe2::db::ZmqDB, caffe2::db::ProtoDB, caffe2::db::RocksDB, and caffe2::db::LevelDB.

NewTransaction()

virtual std::unique_ptr<Transaction> caffe2::db::DB::NewTransaction ( )

pure virtual

Returns a transaction to write data to the database.

The caller takes the ownership of the pointer.

Implemented in caffe2::db::MiniDB, caffe2::db::LMDB, caffe2::db::ZmqDB, caffe2::db::ProtoDB, caffe2::db::RocksDB, and caffe2::db::LevelDB.

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The documentation for this class was generated from the following file:

• caffe2/core/db.h