gs::IWalWriter Class Reference

#include <wal.h>

Inheritance diagram for gs::IWalWriter:

Public Member Functions
virtual	~IWalWriter ()
virtual std::string	type () const =0
virtual void	open (const std::string &uri, int thread_id)=0
virtual void	close ()=0
virtual bool	append (const char *data, size_t length)=0

Detailed Description

The interface of wal writer.

Constructor & Destructor Documentation

~IWalWriter()

virtual gs::IWalWriter::~IWalWriter ( )

inlinevirtual

Member Function Documentation

append()

virtual bool gs::IWalWriter::append ( const char *  data, size_t  length  )

pure virtual

Append data to the wal file.

Implemented in gs::LocalWalWriter.

close()

virtual void gs::IWalWriter::close ( )

pure virtual

Close the wal writer. If a remote connection is hold by the wal writer, it should be closed.

Implemented in gs::LocalWalWriter.

open()

virtual void gs::IWalWriter::open ( const std::string &  uri, int  thread_id  )

pure virtual

Open a wal file. In our design, each thread has its own wal file. The uri could be a file_path or a remote connection string.

Implemented in gs::LocalWalWriter.

type()

virtual std::string gs::IWalWriter::type ( ) const

pure virtual

Implemented in gs::LocalWalWriter.

---

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

• /home/runner/work/GraphScope/GraphScope/flex/engines/graph_db/database/wal/wal.h