org.apache.flink.compiler.dag

Class UnaryOperatorNode

java.lang.Object

org.apache.flink.compiler.dag.OptimizerNode

org.apache.flink.compiler.dag.SingleInputNode

org.apache.flink.compiler.dag.UnaryOperatorNode

All Implemented Interfaces:

EstimateProvider, DumpableNode<OptimizerNode>, Visitable<OptimizerNode>

Direct Known Subclasses:

NoOpNode

public class UnaryOperatorNode
extends SingleInputNode

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.SingleInputNode

inConn, keys

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
UnaryOperatorNode(String name, FieldSet keys, List<OperatorDescriptorSingle> operators)
UnaryOperatorNode(String name, FieldSet keys, OperatorDescriptorSingle... operators)

Method Summary

Modifier and Type	Method and Description
protected void	computeOperatorSpecificDefaultEstimates(DataStatistics statistics)
String	getName() Gets the name of this node.
protected List<OperatorDescriptorSingle>	getPossibleProperties()
boolean	isFieldConstant(int input, int fieldNumber) Checks whether a field is modified by the user code or whether it is kept unchanged.

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

accept, addLocalCandidates, computeInterestingPropertiesForInputs, computeUnclosedBranchStack, getAlternativePlans, getIncomingConnection, getIncomingConnections, getPactContract, getPredecessorNode, instantiateCandidate, setIncomingConnection, 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

UnaryOperatorNode

public UnaryOperatorNode(String name,
                         FieldSet keys,
                         OperatorDescriptorSingle... operators)

UnaryOperatorNode

public UnaryOperatorNode(String name,
                         FieldSet keys,
                         List<OperatorDescriptorSingle> operators)

Method Detail

getPossibleProperties

protected List<OperatorDescriptorSingle> getPossibleProperties()

Specified by:

getPossibleProperties in class SingleInputNode

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.

isFieldConstant

public boolean isFieldConstant(int input,
                               int fieldNumber)

Description copied from class: OptimizerNode

Checks whether a field is modified by the user code or whether it is kept unchanged.

Overrides:

isFieldConstant in class SingleInputNode

Parameters:

input - The input number.

fieldNumber - The position of the field.

Returns:

True if the field is not changed by the user function, false otherwise.

computeOperatorSpecificDefaultEstimates

protected void computeOperatorSpecificDefaultEstimates(DataStatistics statistics)

Specified by:

computeOperatorSpecificDefaultEstimates in class OptimizerNode