github.com/aaa256/atlantis@v0.0.0-20210707112435-42ee889287a2/core/rawdb/interfaces.go (about)

     1  // Copyright 2018 The go-athereum Authors
     2  // This file is part of the go-athereum library.
     3  //
     4  // The go-athereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-athereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-athereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package rawdb
    18  
    19  // DatabaseReader wraps the Has and Get method of a backing data store.
    20  type DatabaseReader interface {
    21  	Has(key []byte) (bool, error)
    22  	Get(key []byte) ([]byte, error)
    23  }
    24  
    25  // DatabaseWriter wraps the Put method of a backing data store.
    26  type DatabaseWriter interface {
    27  	Put(key []byte, value []byte) error
    28  }
    29  
    30  // DatabaseDeleter wraps the Delete method of a backing data store.
    31  type DatabaseDeleter interface {
    32  	Delete(key []byte) error
    33  }