iroha::ametsuchi::RocksDbCommon Class Reference

#include "rocksdb_common.hpp"

Collaboration diagram for iroha::ametsuchi::RocksDbCommon:

Public Member Functions
	RocksDbCommon (std::shared_ptr< RocksDBContext > tx_context)
auto &	valueBuffer ()
	Get value buffer. More...
auto &	keyBuffer ()
	Get key buffer. More...
auto	commit ()
	Makes commit to DB. More...
auto	rollback ()
	Rollback all transaction changes. More...
auto	release ()
auto	prepare ()
	Prepare tx for 2pc. More...
void	skip ()
	Skips all changes made in this transaction. More...
void	savepoint ()
	Saves current state of a transaction. More...
auto	rollbackToSavepoint ()
	Restores to the previously saved savepoint. More...
auto	encode (uint64_t number)
	Encode number into. More...
auto	decode (uint64_t &number)
	Decode number from. More...
template<typename S , typename... Args>
auto	get (S const &fmtstring, Args &&... args)
	Read data from database to. More...
template<typename S , typename... Args>
auto	put (S const &fmtstring, Args &&... args)
	Put data from. More...
template<typename S , typename... Args>
auto	del (S const &fmtstring, Args &&... args)
	Delete database entry by the key. More...
template<typename S , typename... Args>
auto	seek (S const &fmtstring, Args &&... args)
	Searches for the first key that matches a prefix. More...
template<typename F , typename S , typename... Args>
auto	enumerate (std::unique_ptr< rocksdb::Iterator > &it, F &&func, S const &fmtstring, Args &&... args)
template<typename F , typename S , typename... Args>
auto	enumerate (F &&func, S const &fmtstring, Args &&... args)
template<typename S , typename... Args>
auto	filterDelete (S const &fmtstring, Args &&... args)
	Removes range of items by key-filter. More...

Detailed Description

Base functions to interact with RocksDB data.

Constructor & Destructor Documentation

RocksDbCommon()

iroha::ametsuchi::RocksDbCommon::RocksDbCommon ( std::shared_ptr< RocksDBContext >  tx_context )

inlineexplicit

Member Function Documentation

commit()

auto iroha::ametsuchi::RocksDbCommon::commit ( )

inline

Makes commit to DB.

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decode()

auto iroha::ametsuchi::RocksDbCommon::decode ( uint64_t &  number )

inline

Decode number from.

See also

valueBuffer

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del()

template<typename S , typename... Args>

auto iroha::ametsuchi::RocksDbCommon::del ( S const &  fmtstring, Args &&...  args  )

inline

Delete database entry by the key.

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encode()

auto iroha::ametsuchi::RocksDbCommon::encode ( uint64_t  number )

inline

Encode number into.

See also

valueBuffer

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enumerate() [1/2]

template<typename F , typename S , typename... Args>

auto iroha::ametsuchi::RocksDbCommon::enumerate ( std::unique_ptr< rocksdb::Iterator > &  it, F &&  func, S const &  fmtstring, Args &&...  args  )

inline

Iterate over all the keys begins from it, and matches a prefix and call lambda with key-value. To stop enumeration callback F must return false.

enumerate() [2/2]

template<typename F , typename S , typename... Args>

auto iroha::ametsuchi::RocksDbCommon::enumerate ( F &&  func, S const &  fmtstring, Args &&...  args  )

inline

Iterate over all the keys that matches a prefix and call lambda with key-value. To stop enumeration callback F must return false.

filterDelete()

template<typename S , typename... Args>

auto iroha::ametsuchi::RocksDbCommon::filterDelete ( S const &  fmtstring, Args &&...  args  )

inline

Removes range of items by key-filter.

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get()

template<typename S , typename... Args>

auto iroha::ametsuchi::RocksDbCommon::get ( S const &  fmtstring, Args &&...  args  )

inline

Read data from database to.

See also

valueBuffer

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keyBuffer()

auto& iroha::ametsuchi::RocksDbCommon::keyBuffer ( )

inline

Get key buffer.

prepare()

auto iroha::ametsuchi::RocksDbCommon::prepare ( )

inline

Prepare tx for 2pc.

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put()

template<typename S , typename... Args>

auto iroha::ametsuchi::RocksDbCommon::put ( S const &  fmtstring, Args &&...  args  )

inline

Put data from.

See also

valueBuffer to database

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release()

auto iroha::ametsuchi::RocksDbCommon::release ( )

inline

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rollback()

auto iroha::ametsuchi::RocksDbCommon::rollback ( )

inline

Rollback all transaction changes.

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rollbackToSavepoint()

auto iroha::ametsuchi::RocksDbCommon::rollbackToSavepoint ( )

inline

Restores to the previously saved savepoint.

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savepoint()

void iroha::ametsuchi::RocksDbCommon::savepoint ( )

inline

Saves current state of a transaction.

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seek()

template<typename S , typename... Args>

auto iroha::ametsuchi::RocksDbCommon::seek ( S const &  fmtstring, Args &&...  args  )

inline

Searches for the first key that matches a prefix.

skip()

void iroha::ametsuchi::RocksDbCommon::skip ( )

inline

Skips all changes made in this transaction.

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valueBuffer()

auto& iroha::ametsuchi::RocksDbCommon::valueBuffer ( )

inline

Get value buffer.

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

• irohad/ametsuchi/impl/rocksdb_common.hpp