com.facebook.presto.spi.plan

Class SetOperationNode

java.lang.Object

com.facebook.presto.spi.plan.PlanNode

com.facebook.presto.spi.plan.SetOperationNode

Direct Known Subclasses:

ExceptNode, IntersectNode, UnionNode

@Immutable
public abstract class SetOperationNode
extends PlanNode

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	SetOperationNode(Optional<SourceLocation> sourceLocation, PlanNodeId id, List<PlanNode> sources, List<VariableReferenceExpression> outputVariables, Map<VariableReferenceExpression,List<VariableReferenceExpression>> outputToInputs)
protected	SetOperationNode(Optional<SourceLocation> sourceLocation, PlanNodeId id, Optional<PlanNode> statsEquivalentPlanNode, List<PlanNode> sources, List<VariableReferenceExpression> outputVariables, Map<VariableReferenceExpression,List<VariableReferenceExpression>> outputToInputs)

Method Summary

Modifier and Type	Method and Description
List<VariableReferenceExpression>	getOutputVariables() The output from the upstream PlanNodes.
List<PlanNode>	getSources() Get the upstream PlanNodes (i.e., children) of the current PlanNode.
Map<VariableReferenceExpression,List<VariableReferenceExpression>>	getVariableMapping()
List<VariableReferenceExpression>	sourceOutputLayout(int sourceIndex)
Map<VariableReferenceExpression,VariableReferenceExpression>	sourceVariableMap(int sourceIndex) Returns the output to input variable mapping for the given source channel

Methods inherited from class com.facebook.presto.spi.plan.PlanNode

accept, assignStatsEquivalentPlanNode, computeLogicalProperties, getId, getSourceLocation, getStatsEquivalentPlanNode, replaceChildren

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SetOperationNode

protected SetOperationNode(Optional<SourceLocation> sourceLocation,
                           PlanNodeId id,
                           List<PlanNode> sources,
                           List<VariableReferenceExpression> outputVariables,
                           Map<VariableReferenceExpression,List<VariableReferenceExpression>> outputToInputs)

SetOperationNode

protected SetOperationNode(Optional<SourceLocation> sourceLocation,
                           PlanNodeId id,
                           Optional<PlanNode> statsEquivalentPlanNode,
                           List<PlanNode> sources,
                           List<VariableReferenceExpression> outputVariables,
                           Map<VariableReferenceExpression,List<VariableReferenceExpression>> outputToInputs)

Method Detail

getSources

public List<PlanNode> getSources()

Description copied from class: PlanNode

Get the upstream PlanNodes (i.e., children) of the current PlanNode.

Specified by:

getSources in class PlanNode

getVariableMapping

public Map<VariableReferenceExpression,List<VariableReferenceExpression>> getVariableMapping()

getOutputVariables

public List<VariableReferenceExpression> getOutputVariables()

Description copied from class: PlanNode

The output from the upstream PlanNodes. It should serve as the input for the current PlanNode.

Specified by:

getOutputVariables in class PlanNode

sourceOutputLayout

public List<VariableReferenceExpression> sourceOutputLayout(int sourceIndex)

sourceVariableMap

public Map<VariableReferenceExpression,VariableReferenceExpression> sourceVariableMap(int sourceIndex)

Returns the output to input variable mapping for the given source channel