How to use

FilterNode

in

org.apache.flink.optimizer.dag

  /**
   * Computes the estimates for the Filter operator. Since it applies a filter on the data we assume a cardinality
   * decrease. To give the system a hint at data decrease, we use a default magic number to indicate a 0.5 decrease. 
   */
  @Override
  protected void computeOperatorSpecificDefaultEstimates(DataStatistics statistics) {
    this.estimatedNumRecords = (long) (getPredecessorNode().getEstimatedNumRecords() * 0.5);
    this.estimatedOutputSize = (long) (getPredecessorNode().getEstimatedOutputSize() * 0.5);
  }
}

n = new FilterNode((FilterOperatorBase<?, ?>) c);

n = new FilterNode((FilterOperatorBase<?, ?>) c);

  /**
   * Computes the estimates for the Filter operator. Since it applies a filter on the data we assume a cardinality
   * decrease. To give the system a hint at data decrease, we use a default magic number to indicate a 0.5 decrease. 
   */
  @Override
  protected void computeOperatorSpecificDefaultEstimates(DataStatistics statistics) {
    this.estimatedNumRecords = (long) (getPredecessorNode().getEstimatedNumRecords() * 0.5);
    this.estimatedOutputSize = (long) (getPredecessorNode().getEstimatedOutputSize() * 0.5);
  }
}

n = new FilterNode((FilterOperatorBase<?, ?>) c);

  /**
   * Computes the estimates for the Filter operator. Since it applies a filter on the data we assume a cardinality
   * decrease. To give the system a hint at data decrease, we use a default magic number to indicate a 0.5 decrease. 
   */
  @Override
  protected void computeOperatorSpecificDefaultEstimates(DataStatistics statistics) {
    this.estimatedNumRecords = (long) (getPredecessorNode().getEstimatedNumRecords() * 0.5);
    this.estimatedOutputSize = (long) (getPredecessorNode().getEstimatedOutputSize() * 0.5);
  }
}

n = new FilterNode((FilterOperatorBase<?, ?>) c);

  /**
   * Computes the estimates for the Filter operator. Since it applies a filter on the data we assume a cardinality
   * decrease. To give the system a hint at data decrease, we use a default magic number to indicate a 0.5 decrease. 
   */
  @Override
  protected void computeOperatorSpecificDefaultEstimates(DataStatistics statistics) {
    this.estimatedNumRecords = (long) (getPredecessorNode().getEstimatedNumRecords() * 0.5);
    this.estimatedOutputSize = (long) (getPredecessorNode().getEstimatedOutputSize() * 0.5);
  }
}

n = new FilterNode((FilterOperatorBase<?, ?>) c);

  /**
   * Computes the estimates for the Filter operator. Since it applies a filter on the data we assume a cardinality
   * decrease. To give the system a hint at data decrease, we use a default magic number to indicate a 0.5 decrease. 
   */
  @Override
  protected void computeOperatorSpecificDefaultEstimates(DataStatistics statistics) {
    this.estimatedNumRecords = (long) (getPredecessorNode().getEstimatedNumRecords() * 0.5);
    this.estimatedOutputSize = (long) (getPredecessorNode().getEstimatedOutputSize() * 0.5);
  }
}