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interface.go
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interface.go
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/*
* Tencent is pleased to support the open source community by making Blueking Container Service available.
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
* Licensed under the MIT License (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
* http://opensource.org/licenses/MIT
* Unless required by applicable law or agreed to in writing, software distributed under
* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied. See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package storage
// Event for callback register
type Event interface {
AddEvent(key string, value []byte)
UpdateEvent(key string, oldData, curData []byte)
DeleteEvent(key string, value []byte)
}
// Locker for storage, basic use
// for pool Delete & IP lease/release
type Locker interface {
Lock() error
Unlock() error
}
// Storage interface for key/value storage
type Storage interface {
GetLocker(path string) (Locker, error) // get locker with new connection
Register(path string, data []byte) error // register self node
RegisterAndWatch(path string, data []byte) error // register and watch self node
Add(key string, value []byte) error // add new node data
Delete(key string) ([]byte, error) // delete node
Update(key string, data []byte) error // update node data
Get(key string) ([]byte, error) // get node data
List(key string) ([]string, error) // list all children nodes
Exist(key string) (bool, error) // check node exist
Stop() // close connection
}