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   *  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
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   *
   *    https://www.apache.org/licenses/LICENSE-2.0
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   ****************************************************************/
  package org.apache.cayenne.access.util;
  
  import java.util.List;
  
  import org.apache.cayenne.CayenneRuntimeException;
  import org.apache.cayenne.ObjectId;
  import org.apache.cayenne.ResultIterator;
  import org.apache.cayenne.access.OperationObserver;
  import org.apache.cayenne.query.Query;
  
  /**
   * A very simple observer that does nothing with provided data, and rethrows any
   * reported exceptions. Can be used as a base superclass for custom observers.
   * 
   * @since 4.0
   */
  public class DoNothingOperationObserver implements OperationObserver {
  
  	@Override
  	public boolean isIteratedResult() {
  		return false;
  	}
  
  	@Override
  	public void nextCount(Query query, int resultCount) {
  		// TODO Auto-generated method stub
  
  	}
  
  	@Override
  	public void nextBatchCount(Query query, int[] resultCount) {
  		// TODO Auto-generated method stub
  
  	}
  
  	@Override
  	public void nextRows(Query query, List<?> dataRows) {
  		// TODO Auto-generated method stub
  
  	}
  
  	@Override
  	public void nextRows(Query q, ResultIterator<?> it) {
  		// TODO Auto-generated method stub
  
  	}
  
  	@Override
  	public void nextGeneratedRows(Query query, ResultIterator<?> keys, List<ObjectId> idsToUpdate) {
  		// do
  	}
  
  	@Override
  	public void nextQueryException(Query query, Exception ex) {
  		throw new CayenneRuntimeException(ex);
  	}
  
  	@Override
  	public void nextGlobalException(Exception ex) {
  		throw new CayenneRuntimeException(ex);
  	}
  }
  