org.apache.flink.compiler.dag

Class CoGroupNode

java.lang.Object

org.apache.flink.compiler.dag.OptimizerNode

org.apache.flink.compiler.dag.TwoInputNode

org.apache.flink.compiler.dag.CoGroupNode

All Implemented Interfaces:

EstimateProvider, DumpableNode<OptimizerNode>, Visitable<OptimizerNode>

public class CoGroupNode
extends TwoInputNode

The Optimizer representation of a CoGroup operator.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.flink.compiler.dag.OptimizerNode

OptimizerNode.UnclosedBranchDescriptor

Field Summary

Fields inherited from class org.apache.flink.compiler.dag.TwoInputNode

input1, input2, keys1, keys2

Fields inherited from class org.apache.flink.compiler.dag.OptimizerNode

cachedPlans, closedBranchingNodes, costWeight, estimatedNumRecords, estimatedOutputSize, hereJoinedBranches, id, MAX_DYNAMIC_PATH_COST_WEIGHT, onDynamicPath, openBranches, remappedKeys, uniqueFields

Constructor Summary

Constructors

Constructor and Description
CoGroupNode(CoGroupOperatorBase<?,?,?,?> pactContract)

Method Summary

Modifier and Type	Method and Description
protected void	computeOperatorSpecificDefaultEstimates(DataStatistics statistics)
String	getName() Gets the name of this node.
CoGroupOperatorBase<?,?,?,?>	getPactContract() Gets the operator for this CoGroup node.
protected List<OperatorDescriptorDual>	getPossibleProperties()
void	makeCoGroupWithSolutionSet(int solutionsetInputIndex)

Methods inherited from class org.apache.flink.compiler.dag.TwoInputNode

accept, addLocalCandidates, computeInterestingPropertiesForInputs, computeUnclosedBranchStack, getAlternativePlans, getFirstIncomingConnection, getFirstPredecessorNode, getIncomingConnections, getInputKeySet, getSecondIncomingConnection, getSecondPredecessorNode, haveValidOutputEstimates, instantiate, isFieldConstant, placePipelineBreakersIfNecessary, setInput

Methods inherited from class org.apache.flink.compiler.dag.OptimizerNode

addBroadcastConnection, addClosedBranch, addClosedBranches, addOutgoingConnection, areBranchCompatible, clearInterestingProperties, computeOutputEstimates, computeUnclosedBranchStackForBroadcastInputs, computeUnionOfInterestingPropertiesFromSuccessors, createUniqueFieldsForNode, getBranchesForParent, getBroadcastConnectionNames, getBroadcastConnections, getClosedBranchingNodes, getConstantKeySet, getCostWeight, getDegreeOfParallelism, getDumpableInputs, getEstimatedAvgWidthPerOutputRecord, getEstimatedNumRecords, getEstimatedOutputSize, getId, getInterestingProperties, getMaxDepth, getMinimalMemoryAcrossAllSubTasks, getOpenBranches, getOptimizerNode, getOutgoingConnections, getPlanNode, getPredecessors, getRemappedKeys, getUniqueFields, hasUnclosedBranches, haveAllOutputConnectionInterestingProperties, identifyDynamicPath, initId, isBranching, isOnDynamicPath, mergeLists, prunePlanAlternatives, prunePlanAlternativesWithCommonBranching, readStubAnnotations, readUniqueFieldsAnnotation, removeClosedBranches, setBroadcastInputs, setDegreeOfParallelism, setEstimatedNumRecords, setEstimatedOutputSize, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

CoGroupNode

public CoGroupNode(CoGroupOperatorBase<?,?,?,?> pactContract)

Method Detail

getPactContract

public CoGroupOperatorBase<?,?,?,?> getPactContract()

Gets the operator for this CoGroup node.

Overrides:

getPactContract in class TwoInputNode

Returns:

The CoGroup operator.

getName

public String getName()

Description copied from class: OptimizerNode

Gets the name of this node. This returns either the name of the PACT, or a string marking the node as a data source or a data sink.

Specified by:

getName in class OptimizerNode

Returns:

The node name.

getPossibleProperties

protected List<OperatorDescriptorDual> getPossibleProperties()

Specified by:

getPossibleProperties in class TwoInputNode

makeCoGroupWithSolutionSet

public void makeCoGroupWithSolutionSet(int solutionsetInputIndex)

computeOperatorSpecificDefaultEstimates

protected void computeOperatorSpecificDefaultEstimates(DataStatistics statistics)

Specified by:

computeOperatorSpecificDefaultEstimates in class OptimizerNode