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   *   Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you under the Apache License, Version 2.0 (the
   *  "License"); you may not use this file except in compliance
   *  with the License.  You may obtain a copy of the License at
   *
   *    https://www.apache.org/licenses/LICENSE-2.0
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   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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  package org.apache.cayenne.unit.di;
  
  import org.apache.cayenne.graph.ArcId;
  import org.apache.cayenne.graph.GraphChangeHandler;
  
  public class DataChannelSyncStats implements GraphChangeHandler {
  
      public int arcsCreated;
      public int arcsDeleted;
      public int nodesCreated;
      public int nodeIdsChanged;
      public int nodePropertiesChanged;
      public int nodesRemoved;
  
      @Override
      public void arcCreated(Object nodeId, Object targetNodeId, ArcId arcId) {
          arcsCreated++;
      }
  
      @Override
      public void arcDeleted(Object nodeId, Object targetNodeId, ArcId arcId) {
          arcsDeleted++;
      }
  
      @Override
      public void nodeCreated(Object nodeId) {
          nodesCreated++;
      }
  
      @Override
      public void nodeIdChanged(Object nodeId, Object newId) {
          nodeIdsChanged++;
      }
  
      @Override
      public void nodePropertyChanged(
              Object nodeId,
              String property,
              Object oldValue,
              Object newValue) {
          nodePropertiesChanged++;
      }
  
      @Override
      public void nodeRemoved(Object nodeId) {
          nodesRemoved++;
      }
  }