How to use

getSolutionSetKeyFields

method

in

org.apache.flink.api.common.operators.base.DeltaIterationBase

/**
 * Creates a new node with a single input for the optimizer plan.
 * 
 * @param iteration The iteration operator that the node represents.
 */
public WorksetIterationNode(DeltaIterationBase<?, ?> iteration) {
  super(iteration);
  
  final int[] ssKeys = iteration.getSolutionSetKeyFields();
  if (ssKeys == null || ssKeys.length == 0) {
    throw new CompilerException("Invalid WorksetIteration: No key fields defined for the solution set.");
  }
  this.solutionSetKeyFields = new FieldList(ssKeys);
  this.partitionedProperties = new GlobalProperties();
  this.partitionedProperties.setHashPartitioned(this.solutionSetKeyFields);
  
  int weight = iteration.getMaximumNumberOfIterations() > 0 ? 
    iteration.getMaximumNumberOfIterations() : DEFAULT_COST_WEIGHT;
    
  if (weight > OptimizerNode.MAX_DYNAMIC_PATH_COST_WEIGHT) {
    weight = OptimizerNode.MAX_DYNAMIC_PATH_COST_WEIGHT;
  }
  this.costWeight = weight; 
  
  this.dataProperties = Collections.<OperatorDescriptorDual>singletonList(new WorksetOpDescriptor(this.solutionSetKeyFields));
}

TypeInformation<?> solutionType = operatorInfo.getFirstInputType();
int[] keyColumns = iteration.getSolutionSetKeyFields();
boolean[] inputOrderings = new boolean[keyColumns.length];
TypeComparator<T> inputComparator = ((CompositeType<T>) solutionType).createComparator(keyColumns, inputOrderings, 0, executionConfig);

assertArrayEquals(iterationKeys, iteration.getSolutionSetKeyFields());
assertEquals(iterationParallelism, iteration.getParallelism());
assertEquals(iterationName, iteration.getName());

/**
 * Creates a new node with a single input for the optimizer plan.
 * 
 * @param iteration The iteration operator that the node represents.
 */
public WorksetIterationNode(DeltaIterationBase<?, ?> iteration) {
  super(iteration);
  
  final int[] ssKeys = iteration.getSolutionSetKeyFields();
  if (ssKeys == null || ssKeys.length == 0) {
    throw new CompilerException("Invalid WorksetIteration: No key fields defined for the solution set.");
  }
  this.solutionSetKeyFields = new FieldList(ssKeys);
  this.partitionedProperties = new GlobalProperties();
  this.partitionedProperties.setHashPartitioned(this.solutionSetKeyFields);
  
  int weight = iteration.getMaximumNumberOfIterations() > 0 ? 
    iteration.getMaximumNumberOfIterations() : DEFAULT_COST_WEIGHT;
    
  if (weight > OptimizerNode.MAX_DYNAMIC_PATH_COST_WEIGHT) {
    weight = OptimizerNode.MAX_DYNAMIC_PATH_COST_WEIGHT;
  }
  this.costWeight = weight; 
  
  this.dataProperties = Collections.<OperatorDescriptorDual>singletonList(new WorksetOpDescriptor(this.solutionSetKeyFields));
}

/**
 * Creates a new node with a single input for the optimizer plan.
 * 
 * @param iteration The iteration operator that the node represents.
 */
public WorksetIterationNode(DeltaIterationBase<?, ?> iteration) {
  super(iteration);
  
  final int[] ssKeys = iteration.getSolutionSetKeyFields();
  if (ssKeys == null || ssKeys.length == 0) {
    throw new CompilerException("Invalid WorksetIteration: No key fields defined for the solution set.");
  }
  this.solutionSetKeyFields = new FieldList(ssKeys);
  this.partitionedProperties = new GlobalProperties();
  this.partitionedProperties.setHashPartitioned(this.solutionSetKeyFields);
  
  int weight = iteration.getMaximumNumberOfIterations() > 0 ? 
    iteration.getMaximumNumberOfIterations() : DEFAULT_COST_WEIGHT;
    
  if (weight > OptimizerNode.MAX_DYNAMIC_PATH_COST_WEIGHT) {
    weight = OptimizerNode.MAX_DYNAMIC_PATH_COST_WEIGHT;
  }
  this.costWeight = weight; 
  
  this.dataProperties = Collections.<OperatorDescriptorDual>singletonList(new WorksetOpDescriptor(this.solutionSetKeyFields));
}

/**
 * Creates a new node with a single input for the optimizer plan.
 * 
 * @param iteration The iteration operator that the node represents.
 */
public WorksetIterationNode(DeltaIterationBase<?, ?> iteration) {
  super(iteration);
  
  final int[] ssKeys = iteration.getSolutionSetKeyFields();
  if (ssKeys == null || ssKeys.length == 0) {
    throw new CompilerException("Invalid WorksetIteration: No key fields defined for the solution set.");
  }
  this.solutionSetKeyFields = new FieldList(ssKeys);
  this.partitionedProperties = new GlobalProperties();
  this.partitionedProperties.setHashPartitioned(this.solutionSetKeyFields);
  
  int weight = iteration.getMaximumNumberOfIterations() > 0 ? 
    iteration.getMaximumNumberOfIterations() : DEFAULT_COST_WEIGHT;
    
  if (weight > OptimizerNode.MAX_DYNAMIC_PATH_COST_WEIGHT) {
    weight = OptimizerNode.MAX_DYNAMIC_PATH_COST_WEIGHT;
  }
  this.costWeight = weight; 
  
  this.dataProperties = Collections.<OperatorDescriptorDual>singletonList(new WorksetOpDescriptor(this.solutionSetKeyFields));
}

/**
 * Creates a new node with a single input for the optimizer plan.
 * 
 * @param iteration The iteration operator that the node represents.
 */
public WorksetIterationNode(DeltaIterationBase<?, ?> iteration) {
  super(iteration);
  
  final int[] ssKeys = iteration.getSolutionSetKeyFields();
  if (ssKeys == null || ssKeys.length == 0) {
    throw new CompilerException("Invalid WorksetIteration: No key fields defined for the solution set.");
  }
  this.solutionSetKeyFields = new FieldList(ssKeys);
  this.partitionedProperties = new GlobalProperties();
  this.partitionedProperties.setHashPartitioned(this.solutionSetKeyFields);
  
  int weight = iteration.getMaximumNumberOfIterations() > 0 ? 
    iteration.getMaximumNumberOfIterations() : DEFAULT_COST_WEIGHT;
    
  if (weight > OptimizerNode.MAX_DYNAMIC_PATH_COST_WEIGHT) {
    weight = OptimizerNode.MAX_DYNAMIC_PATH_COST_WEIGHT;
  }
  this.costWeight = weight; 
  
  this.dataProperties = Collections.<OperatorDescriptorDual>singletonList(new WorksetOpDescriptor(this.solutionSetKeyFields));
}

TypeInformation<?> solutionType = operatorInfo.getFirstInputType();
int[] keyColumns = iteration.getSolutionSetKeyFields();
boolean[] inputOrderings = new boolean[keyColumns.length];
TypeComparator<T> inputComparator = ((CompositeType<T>) solutionType).createComparator(keyColumns, inputOrderings, 0, executionConfig);

TypeInformation<?> solutionType = operatorInfo.getFirstInputType();
int[] keyColumns = iteration.getSolutionSetKeyFields();
boolean[] inputOrderings = new boolean[keyColumns.length];
TypeComparator<T> inputComparator = ((CompositeType<T>) solutionType).createComparator(keyColumns, inputOrderings, 0, executionConfig);