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  1. // Copyright 2017-2018 DERO Project. All rights reserved.
  2. // Use of this source code in any form is governed by RESEARCH license.
  3. // license can be found in the LICENSE file.
  4. // GPG: 0F39 E425 8C65 3947 702A 8234 08B2 0360 A03A 9DE8
  5. //
  6. //
  7. // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
  8. // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  9. // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
  10. // THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  11. // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  12. // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  13. // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  14. // STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
  15. // THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  16. package storage
  17. type Store interface {
  18. Init(param map[string]interface{}) error // init the backend and connect to it
  19. Shutdown() error // shutdown the backend
  20. Commit() // commit all writes persistantly
  21. Rollback() // Rollback all changes since last commit
  22. Sync() // sync the data
  23. StoreObject(universe_bucket []byte, galaxy_bucket []byte, solar_bucket []byte, key []byte, data []byte) error // store object to a specific universe
  24. LoadObject(universe_bucket []byte, galaxy_bucket []byte, solar_bucket []byte, key []byte) ([]byte, error) // load object from a specific universe
  25. StoreUint64(universe_bucket []byte, galaxy_bucket []byte, solar_bucket []byte, key []byte, data uint64) error // store
  26. LoadUint64(universe_bucket []byte, galaxy_bucket []byte, solar_bucket []byte, key []byte) (uint64, error) // load object
  27. }
  28. //var Store Backend_Store// the system shouls chooose a backend at start Time