github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/engine/pkg/meta/internal/etcdkv/model/interfaces.go (about)

     1  // Copyright 2022 PingCAP, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package model
    15  
    16  import (
    17  	"context"
    18  
    19  	metaModel "github.com/pingcap/tiflow/engine/pkg/meta/model"
    20  )
    21  
    22  // KVExt extends the KV interface with Do method to implement the intermediate
    23  type KVExt interface {
    24  	metaModel.KV
    25  
    26  	// Do applies a single Op on KV without a transaction.
    27  	// Do is useful when adding intermidate layer to KV implement
    28  	Do(ctx context.Context, op metaModel.Op) (metaModel.OpResponse, metaModel.Error)
    29  }