org.apache.flink.optimizer.operators.OperatorDescriptorDual Java Examples

private List<OperatorDescriptorDual> createRightOuterJoinDescriptors(JoinHint hint) {

		List<OperatorDescriptorDual> list = new ArrayList<>();
		switch (hint) {
			case OPTIMIZER_CHOOSES:
				list.add(new SortMergeRightOuterJoinDescriptor(this.keys1, this.keys2, true));
				list.add(new HashRightOuterJoinBuildFirstDescriptor(this.keys1, this.keys2, true, true));
				break;
			case REPARTITION_SORT_MERGE:
				list.add(new SortMergeRightOuterJoinDescriptor(this.keys1, this.keys2, false));
				break;
			case REPARTITION_HASH_FIRST:
				list.add(new HashRightOuterJoinBuildFirstDescriptor(this.keys1, this.keys2, false, true));
				break;
			case BROADCAST_HASH_FIRST:
				list.add(new HashRightOuterJoinBuildFirstDescriptor(this.keys1, this.keys2, true, false));
				break;
			case REPARTITION_HASH_SECOND:
				list.add(new HashRightOuterJoinBuildSecondDescriptor(this.keys1, this.keys2, false, true));
				break;
			case BROADCAST_HASH_SECOND:
			default:
				throw new CompilerException("Invalid join hint: " + hint + " for right outer join");
		}
		return list;
	}
 

/**
 * 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));
}
 

private List<OperatorDescriptorDual> createFullOuterJoinDescriptors(JoinHint hint) {

		List<OperatorDescriptorDual> list = new ArrayList<>();
		switch (hint) {
			case OPTIMIZER_CHOOSES:
				list.add(new SortMergeFullOuterJoinDescriptor(this.keys1, this.keys2));
				break;
			case REPARTITION_SORT_MERGE:
				list.add(new SortMergeFullOuterJoinDescriptor(this.keys1, this.keys2));
				break;
			case REPARTITION_HASH_FIRST:
				list.add(new HashFullOuterJoinBuildFirstDescriptor(this.keys1, this.keys2));
				break;
			case REPARTITION_HASH_SECOND:
				list.add(new HashFullOuterJoinBuildSecondDescriptor(this.keys1, this.keys2));
				break;
			case BROADCAST_HASH_FIRST:
			case BROADCAST_HASH_SECOND:
			default:
				throw new CompilerException("Invalid join hint: " + hint + " for full outer join");
		}
		return list;
	}
 

private List<OperatorDescriptorDual> createRightOuterJoinDescriptors(JoinHint hint) {

		List<OperatorDescriptorDual> list = new ArrayList<>();
		switch (hint) {
			case OPTIMIZER_CHOOSES:
				list.add(new SortMergeRightOuterJoinDescriptor(this.keys1, this.keys2, true));
				list.add(new HashRightOuterJoinBuildFirstDescriptor(this.keys1, this.keys2, true, true));
				break;
			case REPARTITION_SORT_MERGE:
				list.add(new SortMergeRightOuterJoinDescriptor(this.keys1, this.keys2, false));
				break;
			case REPARTITION_HASH_FIRST:
				list.add(new HashRightOuterJoinBuildFirstDescriptor(this.keys1, this.keys2, false, true));
				break;
			case BROADCAST_HASH_FIRST:
				list.add(new HashRightOuterJoinBuildFirstDescriptor(this.keys1, this.keys2, true, false));
				break;
			case REPARTITION_HASH_SECOND:
				list.add(new HashRightOuterJoinBuildSecondDescriptor(this.keys1, this.keys2, false, true));
				break;
			case BROADCAST_HASH_SECOND:
			default:
				throw new CompilerException("Invalid join hint: " + hint + " for right outer join");
		}
		return list;
	}
 

private List<OperatorDescriptorDual> createLeftOuterJoinDescriptors(JoinHint hint) {

		List<OperatorDescriptorDual> list = new ArrayList<>();
		switch (hint) {
			case OPTIMIZER_CHOOSES:
				list.add(new SortMergeLeftOuterJoinDescriptor(this.keys1, this.keys2, true));
				list.add(new HashLeftOuterJoinBuildSecondDescriptor(this.keys1, this.keys2, true, true));
				break;
			case REPARTITION_SORT_MERGE:
				list.add(new SortMergeLeftOuterJoinDescriptor(this.keys1, this.keys2, false));
				break;
			case REPARTITION_HASH_SECOND:
				list.add(new HashLeftOuterJoinBuildSecondDescriptor(this.keys1, this.keys2, false, true));
				break;
			case BROADCAST_HASH_SECOND:
				list.add(new HashLeftOuterJoinBuildSecondDescriptor(this.keys1, this.keys2, true, false));
				break;
			case REPARTITION_HASH_FIRST:
				list.add(new HashLeftOuterJoinBuildFirstDescriptor(this.keys1, this.keys2, false, true));
				break;
			case BROADCAST_HASH_FIRST:
			default:
				throw new CompilerException("Invalid join hint: " + hint + " for left outer join");
		}
		return list;
	}
 

private List<OperatorDescriptorDual> initializeDataProperties(Partitioner<?> customPartitioner) {
	Ordering groupOrder1 = null;
	Ordering groupOrder2 = null;
	
	CoGroupOperatorBase<?, ?, ?, ?> cgc = getOperator();
	groupOrder1 = cgc.getGroupOrderForInputOne();
	groupOrder2 = cgc.getGroupOrderForInputTwo();
		
	if (groupOrder1 != null && groupOrder1.getNumberOfFields() == 0) {
		groupOrder1 = null;
	}
	if (groupOrder2 != null && groupOrder2.getNumberOfFields() == 0) {
		groupOrder2 = null;
	}
	
	CoGroupDescriptor descr = new CoGroupDescriptor(this.keys1, this.keys2, groupOrder1, groupOrder2);
	if (customPartitioner != null) {
		descr.setCustomPartitioner(customPartitioner);
	}
	
	return Collections.<OperatorDescriptorDual>singletonList(descr);
}
 

/**
 * 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));
}
 

private List<OperatorDescriptorDual> initializeDataProperties(Partitioner<?> customPartitioner) {
	Ordering groupOrder1 = null;
	Ordering groupOrder2 = null;
	
	CoGroupOperatorBase<?, ?, ?, ?> cgc = getOperator();
	groupOrder1 = cgc.getGroupOrderForInputOne();
	groupOrder2 = cgc.getGroupOrderForInputTwo();
		
	if (groupOrder1 != null && groupOrder1.getNumberOfFields() == 0) {
		groupOrder1 = null;
	}
	if (groupOrder2 != null && groupOrder2.getNumberOfFields() == 0) {
		groupOrder2 = null;
	}
	
	CoGroupDescriptor descr = new CoGroupDescriptor(this.keys1, this.keys2, groupOrder1, groupOrder2);
	if (customPartitioner != null) {
		descr.setCustomPartitioner(customPartitioner);
	}
	
	return Collections.<OperatorDescriptorDual>singletonList(descr);
}
 

private List<OperatorDescriptorDual> createLeftOuterJoinDescriptors(JoinHint hint) {

		List<OperatorDescriptorDual> list = new ArrayList<>();
		switch (hint) {
			case OPTIMIZER_CHOOSES:
				list.add(new SortMergeLeftOuterJoinDescriptor(this.keys1, this.keys2, true));
				list.add(new HashLeftOuterJoinBuildSecondDescriptor(this.keys1, this.keys2, true, true));
				break;
			case REPARTITION_SORT_MERGE:
				list.add(new SortMergeLeftOuterJoinDescriptor(this.keys1, this.keys2, false));
				break;
			case REPARTITION_HASH_SECOND:
				list.add(new HashLeftOuterJoinBuildSecondDescriptor(this.keys1, this.keys2, false, true));
				break;
			case BROADCAST_HASH_SECOND:
				list.add(new HashLeftOuterJoinBuildSecondDescriptor(this.keys1, this.keys2, true, false));
				break;
			case REPARTITION_HASH_FIRST:
				list.add(new HashLeftOuterJoinBuildFirstDescriptor(this.keys1, this.keys2, false, true));
				break;
			case BROADCAST_HASH_FIRST:
			default:
				throw new CompilerException("Invalid join hint: " + hint + " for left outer join");
		}
		return list;
	}
 

private List<OperatorDescriptorDual> createFullOuterJoinDescriptors(JoinHint hint) {

		List<OperatorDescriptorDual> list = new ArrayList<>();
		switch (hint) {
			case OPTIMIZER_CHOOSES:
				list.add(new SortMergeFullOuterJoinDescriptor(this.keys1, this.keys2));
				break;
			case REPARTITION_SORT_MERGE:
				list.add(new SortMergeFullOuterJoinDescriptor(this.keys1, this.keys2));
				break;
			case REPARTITION_HASH_FIRST:
				list.add(new HashFullOuterJoinBuildFirstDescriptor(this.keys1, this.keys2));
				break;
			case REPARTITION_HASH_SECOND:
				list.add(new HashFullOuterJoinBuildSecondDescriptor(this.keys1, this.keys2));
				break;
			case BROADCAST_HASH_FIRST:
			case BROADCAST_HASH_SECOND:
			default:
				throw new CompilerException("Invalid join hint: " + hint + " for full outer join");
		}
		return list;
	}
 

private List<OperatorDescriptorDual> initializeDataProperties() {
	Ordering groupOrder1 = null;
	Ordering groupOrder2 = null;

	CoGroupRawOperatorBase<?, ?, ?, ?> cgc = getOperator();
	groupOrder1 = cgc.getGroupOrderForInputOne();
	groupOrder2 = cgc.getGroupOrderForInputTwo();

	if (groupOrder1 != null && groupOrder1.getNumberOfFields() == 0) {
		groupOrder1 = null;
	}
	if (groupOrder2 != null && groupOrder2.getNumberOfFields() == 0) {
		groupOrder2 = null;
	}

	return Collections.<OperatorDescriptorDual>singletonList(new CoGroupRawDescriptor(this.keys1, this.keys2, groupOrder1, groupOrder2));
}
 

private List<OperatorDescriptorDual> initializeDataProperties() {
	Ordering groupOrder1 = null;
	Ordering groupOrder2 = null;

	CoGroupRawOperatorBase<?, ?, ?, ?> cgc = getOperator();
	groupOrder1 = cgc.getGroupOrderForInputOne();
	groupOrder2 = cgc.getGroupOrderForInputTwo();

	if (groupOrder1 != null && groupOrder1.getNumberOfFields() == 0) {
		groupOrder1 = null;
	}
	if (groupOrder2 != null && groupOrder2.getNumberOfFields() == 0) {
		groupOrder2 = null;
	}

	return Collections.<OperatorDescriptorDual>singletonList(new CoGroupRawDescriptor(this.keys1, this.keys2, groupOrder1, groupOrder2));
}
 

private List<OperatorDescriptorDual> initializeDataProperties(Partitioner<?> customPartitioner) {
	Ordering groupOrder1 = null;
	Ordering groupOrder2 = null;
	
	CoGroupOperatorBase<?, ?, ?, ?> cgc = getOperator();
	groupOrder1 = cgc.getGroupOrderForInputOne();
	groupOrder2 = cgc.getGroupOrderForInputTwo();
		
	if (groupOrder1 != null && groupOrder1.getNumberOfFields() == 0) {
		groupOrder1 = null;
	}
	if (groupOrder2 != null && groupOrder2.getNumberOfFields() == 0) {
		groupOrder2 = null;
	}
	
	CoGroupDescriptor descr = new CoGroupDescriptor(this.keys1, this.keys2, groupOrder1, groupOrder2);
	if (customPartitioner != null) {
		descr.setCustomPartitioner(customPartitioner);
	}
	
	return Collections.<OperatorDescriptorDual>singletonList(descr);
}
 

/**
 * 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));
}
 

private List<OperatorDescriptorDual> createFullOuterJoinDescriptors(JoinHint hint) {

		List<OperatorDescriptorDual> list = new ArrayList<>();
		switch (hint) {
			case OPTIMIZER_CHOOSES:
				list.add(new SortMergeFullOuterJoinDescriptor(this.keys1, this.keys2));
				break;
			case REPARTITION_SORT_MERGE:
				list.add(new SortMergeFullOuterJoinDescriptor(this.keys1, this.keys2));
				break;
			case REPARTITION_HASH_FIRST:
				list.add(new HashFullOuterJoinBuildFirstDescriptor(this.keys1, this.keys2));
				break;
			case REPARTITION_HASH_SECOND:
				list.add(new HashFullOuterJoinBuildSecondDescriptor(this.keys1, this.keys2));
				break;
			case BROADCAST_HASH_FIRST:
			case BROADCAST_HASH_SECOND:
			default:
				throw new CompilerException("Invalid join hint: " + hint + " for full outer join");
		}
		return list;
	}
 

private List<OperatorDescriptorDual> createLeftOuterJoinDescriptors(JoinHint hint) {

		List<OperatorDescriptorDual> list = new ArrayList<>();
		switch (hint) {
			case OPTIMIZER_CHOOSES:
				list.add(new SortMergeLeftOuterJoinDescriptor(this.keys1, this.keys2, true));
				list.add(new HashLeftOuterJoinBuildSecondDescriptor(this.keys1, this.keys2, true, true));
				break;
			case REPARTITION_SORT_MERGE:
				list.add(new SortMergeLeftOuterJoinDescriptor(this.keys1, this.keys2, false));
				break;
			case REPARTITION_HASH_SECOND:
				list.add(new HashLeftOuterJoinBuildSecondDescriptor(this.keys1, this.keys2, false, true));
				break;
			case BROADCAST_HASH_SECOND:
				list.add(new HashLeftOuterJoinBuildSecondDescriptor(this.keys1, this.keys2, true, false));
				break;
			case REPARTITION_HASH_FIRST:
				list.add(new HashLeftOuterJoinBuildFirstDescriptor(this.keys1, this.keys2, false, true));
				break;
			case BROADCAST_HASH_FIRST:
			default:
				throw new CompilerException("Invalid join hint: " + hint + " for left outer join");
		}
		return list;
	}
 

private List<OperatorDescriptorDual> createRightOuterJoinDescriptors(JoinHint hint) {

		List<OperatorDescriptorDual> list = new ArrayList<>();
		switch (hint) {
			case OPTIMIZER_CHOOSES:
				list.add(new SortMergeRightOuterJoinDescriptor(this.keys1, this.keys2, true));
				list.add(new HashRightOuterJoinBuildFirstDescriptor(this.keys1, this.keys2, true, true));
				break;
			case REPARTITION_SORT_MERGE:
				list.add(new SortMergeRightOuterJoinDescriptor(this.keys1, this.keys2, false));
				break;
			case REPARTITION_HASH_FIRST:
				list.add(new HashRightOuterJoinBuildFirstDescriptor(this.keys1, this.keys2, false, true));
				break;
			case BROADCAST_HASH_FIRST:
				list.add(new HashRightOuterJoinBuildFirstDescriptor(this.keys1, this.keys2, true, false));
				break;
			case REPARTITION_HASH_SECOND:
				list.add(new HashRightOuterJoinBuildSecondDescriptor(this.keys1, this.keys2, false, true));
				break;
			case BROADCAST_HASH_SECOND:
			default:
				throw new CompilerException("Invalid join hint: " + hint + " for right outer join");
		}
		return list;
	}
 

private List<OperatorDescriptorDual> initializeDataProperties() {
	Ordering groupOrder1 = null;
	Ordering groupOrder2 = null;

	CoGroupRawOperatorBase<?, ?, ?, ?> cgc = getOperator();
	groupOrder1 = cgc.getGroupOrderForInputOne();
	groupOrder2 = cgc.getGroupOrderForInputTwo();

	if (groupOrder1 != null && groupOrder1.getNumberOfFields() == 0) {
		groupOrder1 = null;
	}
	if (groupOrder2 != null && groupOrder2.getNumberOfFields() == 0) {
		groupOrder2 = null;
	}

	return Collections.<OperatorDescriptorDual>singletonList(new CoGroupRawDescriptor(this.keys1, this.keys2, groupOrder1, groupOrder2));
}
 

private List<OperatorDescriptorDual> getDataProperties() {
	OuterJoinOperatorBase<?, ?, ?, ?> operator = getOperator();

	OuterJoinType type = operator.getOuterJoinType();

	JoinHint joinHint = operator.getJoinHint();
	joinHint = joinHint == null ? JoinHint.OPTIMIZER_CHOOSES : joinHint;

	List<OperatorDescriptorDual> list;
	switch (type) {
		case LEFT:
			list = createLeftOuterJoinDescriptors(joinHint);
			break;
		case RIGHT:
			list = createRightOuterJoinDescriptors(joinHint);
			break;
		case FULL:
			list = createFullOuterJoinDescriptors(joinHint);
			break;
		default:
			throw new CompilerException("Unknown outer join type: " + type);
	}

	Partitioner<?> customPartitioner = operator.getCustomPartitioner();
	if (customPartitioner != null) {
		for (OperatorDescriptorDual desc : list) {
			((AbstractJoinDescriptor) desc).setCustomPartitioner(customPartitioner);
		}
	}
	return list;
}
 

@Override
public void computeInterestingPropertiesForInputs(CostEstimator estimator) {
	// get what we inherit and what is preserved by our user code 
	final InterestingProperties props1 = getInterestingProperties().filterByCodeAnnotations(this, 0);
	final InterestingProperties props2 = getInterestingProperties().filterByCodeAnnotations(this, 1);
	
	// add all properties relevant to this node
	for (OperatorDescriptorDual dpd : getProperties()) {
		for (GlobalPropertiesPair gp : dpd.getPossibleGlobalProperties()) {
			// input 1
			props1.addGlobalProperties(gp.getProperties1());
			
			// input 2
			props2.addGlobalProperties(gp.getProperties2());
		}
		for (LocalPropertiesPair lp : dpd.getPossibleLocalProperties()) {
			// input 1
			props1.addLocalProperties(lp.getProperties1());
			
			// input 2
			props2.addLocalProperties(lp.getProperties2());
		}
	}
	this.input1.setInterestingProperties(props1);
	this.input2.setInterestingProperties(props2);
	
	for (DagConnection conn : getBroadcastConnections()) {
		conn.setInterestingProperties(new InterestingProperties());
	}
}
 

private List<OperatorDescriptorDual> getDataProperties() {
	OuterJoinOperatorBase<?, ?, ?, ?> operator = getOperator();

	OuterJoinType type = operator.getOuterJoinType();

	JoinHint joinHint = operator.getJoinHint();
	joinHint = joinHint == null ? JoinHint.OPTIMIZER_CHOOSES : joinHint;

	List<OperatorDescriptorDual> list;
	switch (type) {
		case LEFT:
			list = createLeftOuterJoinDescriptors(joinHint);
			break;
		case RIGHT:
			list = createRightOuterJoinDescriptors(joinHint);
			break;
		case FULL:
			list = createFullOuterJoinDescriptors(joinHint);
			break;
		default:
			throw new CompilerException("Unknown outer join type: " + type);
	}

	Partitioner<?> customPartitioner = operator.getCustomPartitioner();
	if (customPartitioner != null) {
		for (OperatorDescriptorDual desc : list) {
			((AbstractJoinDescriptor) desc).setCustomPartitioner(customPartitioner);
		}
	}
	return list;
}
 

@Override
public void computeInterestingPropertiesForInputs(CostEstimator estimator) {
	// get what we inherit and what is preserved by our user code 
	final InterestingProperties props1 = getInterestingProperties().filterByCodeAnnotations(this, 0);
	final InterestingProperties props2 = getInterestingProperties().filterByCodeAnnotations(this, 1);
	
	// add all properties relevant to this node
	for (OperatorDescriptorDual dpd : getProperties()) {
		for (GlobalPropertiesPair gp : dpd.getPossibleGlobalProperties()) {
			// input 1
			props1.addGlobalProperties(gp.getProperties1());
			
			// input 2
			props2.addGlobalProperties(gp.getProperties2());
		}
		for (LocalPropertiesPair lp : dpd.getPossibleLocalProperties()) {
			// input 1
			props1.addLocalProperties(lp.getProperties1());
			
			// input 2
			props2.addLocalProperties(lp.getProperties2());
		}
	}
	this.input1.setInterestingProperties(props1);
	this.input2.setInterestingProperties(props2);
	
	for (DagConnection conn : getBroadcastConnections()) {
		conn.setInterestingProperties(new InterestingProperties());
	}
}
 

@Override
public void computeInterestingPropertiesForInputs(CostEstimator estimator) {
	// get what we inherit and what is preserved by our user code 
	final InterestingProperties props1 = getInterestingProperties().filterByCodeAnnotations(this, 0);
	final InterestingProperties props2 = getInterestingProperties().filterByCodeAnnotations(this, 1);
	
	// add all properties relevant to this node
	for (OperatorDescriptorDual dpd : getProperties()) {
		for (GlobalPropertiesPair gp : dpd.getPossibleGlobalProperties()) {
			// input 1
			props1.addGlobalProperties(gp.getProperties1());
			
			// input 2
			props2.addGlobalProperties(gp.getProperties2());
		}
		for (LocalPropertiesPair lp : dpd.getPossibleLocalProperties()) {
			// input 1
			props1.addLocalProperties(lp.getProperties1());
			
			// input 2
			props2.addLocalProperties(lp.getProperties2());
		}
	}
	this.input1.setInterestingProperties(props1);
	this.input2.setInterestingProperties(props2);
	
	for (DagConnection conn : getBroadcastConnections()) {
		conn.setInterestingProperties(new InterestingProperties());
	}
}
 

private List<OperatorDescriptorDual> getDataProperties() {
	OuterJoinOperatorBase<?, ?, ?, ?> operator = getOperator();

	OuterJoinType type = operator.getOuterJoinType();

	JoinHint joinHint = operator.getJoinHint();
	joinHint = joinHint == null ? JoinHint.OPTIMIZER_CHOOSES : joinHint;

	List<OperatorDescriptorDual> list;
	switch (type) {
		case LEFT:
			list = createLeftOuterJoinDescriptors(joinHint);
			break;
		case RIGHT:
			list = createRightOuterJoinDescriptors(joinHint);
			break;
		case FULL:
			list = createFullOuterJoinDescriptors(joinHint);
			break;
		default:
			throw new CompilerException("Unknown outer join type: " + type);
	}

	Partitioner<?> customPartitioner = operator.getCustomPartitioner();
	if (customPartitioner != null) {
		for (OperatorDescriptorDual desc : list) {
			((AbstractJoinDescriptor) desc).setCustomPartitioner(customPartitioner);
		}
	}
	return list;
}
 

@Override
protected List<OperatorDescriptorDual> getPossibleProperties() {
	return this.dataProperties;
}
 

@Override
protected List<OperatorDescriptorDual> getPossibleProperties() {
	return this.dataProperties;
}
 

@Override
protected List<OperatorDescriptorDual> getPossibleProperties() {
	return this.dataProperties;
}
 

@Override
protected List<OperatorDescriptorDual> getPossibleProperties() {
	return this.dataProperties;
}
 

@Override
protected List<OperatorDescriptorDual> getPossibleProperties() {
	return dataProperties;
}
 

@Override
protected List<OperatorDescriptorDual> getPossibleProperties() {
	return dataProperties;
}