How to use

getPredecessorNode

method

in

org.apache.flink.optimizer.dag.BulkIterationNode

@Override
public void computeOutputEstimates(DataStatistics statistics) {
  copyEstimates(this.iterationNode.getPredecessorNode());
}

@Override
protected void computeOperatorSpecificDefaultEstimates(DataStatistics statistics) {
  this.estimatedOutputSize = getPredecessorNode().getEstimatedOutputSize();
  this.estimatedNumRecords = getPredecessorNode().getEstimatedNumRecords();
}

  @Override
  public void computeUnclosedBranchStack() {
    if (this.openBranches != null) {
      return;
    }

    OptimizerNode inputToIteration = this.iterationNode.getPredecessorNode();
    
    addClosedBranches(inputToIteration.closedBranchingNodes);
    List<UnclosedBranchDescriptor> fromInput = inputToIteration.getBranchesForParent(this.iterationNode.getIncomingConnection());
    this.openBranches = (fromInput == null || fromInput.isEmpty()) ? Collections.<UnclosedBranchDescriptor>emptyList() : fromInput;
  }
}

@Override
public void computeOutputEstimates(DataStatistics statistics) {
  copyEstimates(this.iterationNode.getPredecessorNode());
}

@Override
public void computeOutputEstimates(DataStatistics statistics) {
  copyEstimates(this.iterationNode.getPredecessorNode());
}

@Override
protected void computeOperatorSpecificDefaultEstimates(DataStatistics statistics) {
  this.estimatedOutputSize = getPredecessorNode().getEstimatedOutputSize();
  this.estimatedNumRecords = getPredecessorNode().getEstimatedNumRecords();
}

@Override
public void computeOutputEstimates(DataStatistics statistics) {
  copyEstimates(this.iterationNode.getPredecessorNode());
}

@Override
protected void computeOperatorSpecificDefaultEstimates(DataStatistics statistics) {
  this.estimatedOutputSize = getPredecessorNode().getEstimatedOutputSize();
  this.estimatedNumRecords = getPredecessorNode().getEstimatedNumRecords();
}

@Override
protected void computeOperatorSpecificDefaultEstimates(DataStatistics statistics) {
  this.estimatedOutputSize = getPredecessorNode().getEstimatedOutputSize();
  this.estimatedNumRecords = getPredecessorNode().getEstimatedNumRecords();
}

@Override
protected void computeOperatorSpecificDefaultEstimates(DataStatistics statistics) {
  this.estimatedOutputSize = getPredecessorNode().getEstimatedOutputSize();
  this.estimatedNumRecords = getPredecessorNode().getEstimatedNumRecords();
}

@Override
public void computeOutputEstimates(DataStatistics statistics) {
  copyEstimates(this.iterationNode.getPredecessorNode());
}

  @Override
  public void computeUnclosedBranchStack() {
    if (this.openBranches != null) {
      return;
    }

    OptimizerNode inputToIteration = this.iterationNode.getPredecessorNode();
    
    addClosedBranches(inputToIteration.closedBranchingNodes);
    List<UnclosedBranchDescriptor> fromInput = inputToIteration.getBranchesForParent(this.iterationNode.getIncomingConnection());
    this.openBranches = (fromInput == null || fromInput.isEmpty()) ? Collections.<UnclosedBranchDescriptor>emptyList() : fromInput;
  }
}

  @Override
  public void computeUnclosedBranchStack() {
    if (this.openBranches != null) {
      return;
    }

    OptimizerNode inputToIteration = this.iterationNode.getPredecessorNode();
    
    addClosedBranches(inputToIteration.closedBranchingNodes);
    List<UnclosedBranchDescriptor> fromInput = inputToIteration.getBranchesForParent(this.iterationNode.getIncomingConnection());
    this.openBranches = (fromInput == null || fromInput.isEmpty()) ? Collections.<UnclosedBranchDescriptor>emptyList() : fromInput;
  }
}

  @Override
  public void computeUnclosedBranchStack() {
    if (this.openBranches != null) {
      return;
    }

    OptimizerNode inputToIteration = this.iterationNode.getPredecessorNode();
    
    addClosedBranches(inputToIteration.closedBranchingNodes);
    List<UnclosedBranchDescriptor> fromInput = inputToIteration.getBranchesForParent(this.iterationNode.getIncomingConnection());
    this.openBranches = (fromInput == null || fromInput.isEmpty()) ? Collections.<UnclosedBranchDescriptor>emptyList() : fromInput;
  }
}

  @Override
  public void computeUnclosedBranchStack() {
    if (this.openBranches != null) {
      return;
    }

    OptimizerNode inputToIteration = this.iterationNode.getPredecessorNode();
    
    addClosedBranches(inputToIteration.closedBranchingNodes);
    List<UnclosedBranchDescriptor> fromInput = inputToIteration.getBranchesForParent(this.iterationNode.getIncomingConnection());
    this.openBranches = (fromInput == null || fromInput.isEmpty()) ? Collections.<UnclosedBranchDescriptor>emptyList() : fromInput;
  }
}