54 lines
1.5 KiB
Go
54 lines
1.5 KiB
Go
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// Copyright © 2016 Abcum Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package kv
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import "fmt"
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// DBError is an error which occurs when there is a
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// problem with writing keys/values to the database.
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type DBError struct {
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Err error
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}
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// Error returns the string representation of the error.
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func (e *DBError) Error() string {
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return fmt.Sprintf("Unable to write to the database")
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}
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// TXError is an error which occurs when there is a
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// problem with a writable transaction.
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type TXError struct {
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Err error
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}
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// Error returns the string representation of the error.
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func (e *TXError) Error() string {
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return fmt.Sprintf("Unable to write to the transaction")
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}
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// KVError is an error which occurs when there is a
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// problem with a conditional put or delete.
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type KVError struct {
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Err error
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Key []byte
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Val []byte
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Exp []byte
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}
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// Error returns the string representation of the error.
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func (e *KVError) Error() string {
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return fmt.Sprintf("Key `%s` already exists. Expecting `%s`, but found `%s`", e.Key, e.Exp, e.Val)
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}
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