github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/cdc/sink/dmlsink/mq/dispatcher/partition/default.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 partition
    15  
    16  import (
    17  	"github.com/pingcap/tiflow/cdc/model"
    18  )
    19  
    20  // DefaultDispatcher is the default partition dispatcher.
    21  type DefaultDispatcher struct {
    22  	tbd *TableDispatcher
    23  }
    24  
    25  // NewDefaultDispatcher creates a DefaultDispatcher.
    26  func NewDefaultDispatcher() *DefaultDispatcher {
    27  	return &DefaultDispatcher{
    28  		tbd: NewTableDispatcher(),
    29  	}
    30  }
    31  
    32  // DispatchRowChangedEvent returns the target partition to which
    33  // a row changed event should be dispatched.
    34  func (d *DefaultDispatcher) DispatchRowChangedEvent(row *model.RowChangedEvent, partitionNum int32) (int32, string, error) {
    35  	return d.tbd.DispatchRowChangedEvent(row, partitionNum)
    36  }