forked from cerc-io/plugeth
52 lines
1.5 KiB
Go
52 lines
1.5 KiB
Go
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// Copyright 2014 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package ethdb
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type table struct {
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db Database
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prefix string
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}
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// NewTable returns a Database object that prefixes all keys with a given
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// string.
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func NewTable(db Database, prefix string) Database {
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return &table{
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db: db,
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prefix: prefix,
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}
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}
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func (dt *table) Put(key []byte, value []byte) error {
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return dt.db.Put(append([]byte(dt.prefix), key...), value)
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}
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func (dt *table) Has(key []byte) (bool, error) {
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return dt.db.Has(append([]byte(dt.prefix), key...))
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}
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func (dt *table) Get(key []byte) ([]byte, error) {
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return dt.db.Get(append([]byte(dt.prefix), key...))
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}
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func (dt *table) Delete(key []byte) error {
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return dt.db.Delete(append([]byte(dt.prefix), key...))
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}
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func (dt *table) Close() {
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// Do nothing; don't close the underlying DB.
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}
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