org.apache.flink.optimizer.dag

类 BulkIterationNode

java.lang.Object

org.apache.flink.optimizer.dag.OptimizerNode

org.apache.flink.optimizer.dag.SingleInputNode

org.apache.flink.optimizer.dag.BulkIterationNode

所有已实现的接口:

EstimateProvider, IterationNode, DumpableNode<OptimizerNode>, org.apache.flink.util.Visitable<OptimizerNode>

public class BulkIterationNode
extends SingleInputNode
implements IterationNode

A node in the optimizer's program representation for a bulk iteration.

嵌套类概要

从类继承的嵌套类/接口 org.apache.flink.optimizer.dag.OptimizerNode

OptimizerNode.UnclosedBranchDescriptor

字段概要

从类继承的字段 org.apache.flink.optimizer.dag.SingleInputNode

inConn, keys

从类继承的字段 org.apache.flink.optimizer.dag.OptimizerNode

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

构造器概要

构造器

构造器和说明
BulkIterationNode(org.apache.flink.api.common.operators.base.BulkIterationBase<?> iteration) Creates a new node for the bulk iteration.

方法概要

限定符和类型	方法和说明
void	acceptForStepFunction(org.apache.flink.util.Visitor<OptimizerNode> visitor)
void	clearInterestingProperties()
void	computeInterestingPropertiesForInputs(CostEstimator estimator) Tells the node to compute the interesting properties for its inputs.
protected void	computeOperatorSpecificDefaultEstimates(DataStatistics statistics)
void	computeUnclosedBranchStack() This method causes the node to compute the description of open branches in its sub-plan.
int	getCostWeight()
org.apache.flink.api.common.operators.base.BulkIterationBase<?>	getIterationContract()
OptimizerNode	getNextPartialSolution() Gets the nextPartialSolution from this BulkIterationNode.
String	getOperatorName() Gets the name of this node, which is the name of the function/operator, or data source / data sink.
BulkPartialSolutionNode	getPartialSolution() Gets the partialSolution from this BulkIterationNode.
protected List<OperatorDescriptorSingle>	getPossibleProperties()
org.apache.flink.api.common.operators.SemanticProperties	getSemanticProperties()
OptimizerNode	getSingleRootOfStepFunction()
protected void	instantiateCandidate(OperatorDescriptorSingle dps, Channel in, List<Set<? extends NamedChannel>> broadcastPlanChannels, List<PlanNode> target, CostEstimator estimator, RequestedGlobalProperties globPropsReq, RequestedLocalProperties locPropsReq)
protected void	readStubAnnotations() Reads all stub annotations, i.e. which fields remain constant, what cardinality bounds the functions have, which fields remain unique.
void	setNextPartialSolution(OptimizerNode nextPartialSolution, OptimizerNode terminationCriterion) Sets the nextPartialSolution for this BulkIterationNode.
void	setPartialSolution(BulkPartialSolutionNode partialSolution) Sets the partialSolution for this BulkIterationNode.

从类继承的方法 org.apache.flink.optimizer.dag.SingleInputNode

accept, addLocalCandidates, getAlternativePlans, getIncomingConnection, getIncomingConnections, getOperator, getPredecessorNode, getSemanticPropertiesForGlobalPropertyFiltering, getSemanticPropertiesForLocalPropertyFiltering, setIncomingConnection, setInput

从类继承的方法 org.apache.flink.optimizer.dag.OptimizerNode

addBroadcastConnection, addClosedBranch, addClosedBranches, addOutgoingConnection, areBranchCompatible, computeOutputEstimates, computeUnclosedBranchStackForBroadcastInputs, computeUnionOfInterestingPropertiesFromSuccessors, getBranchesForParent, getBroadcastConnectionNames, getBroadcastConnections, getClosedBranchingNodes, getDumpableInputs, getEstimatedAvgWidthPerOutputRecord, getEstimatedNumRecords, getEstimatedOutputSize, getId, getInterestingProperties, getMaxDepth, getMinimalMemoryAcrossAllSubTasks, getOpenBranches, getOptimizerNode, getOutgoingConnections, getParallelism, getPlanNode, getPredecessors, getUniqueFields, hasUnclosedBranches, haveAllOutputConnectionInterestingProperties, identifyDynamicPath, initId, isBranching, isOnDynamicPath, markAllOutgoingConnectionsAsPipelineBreaking, mergeLists, prunePlanAlternatives, prunePlanAlternativesWithCommonBranching, readUniqueFieldsAnnotation, removeClosedBranches, setBroadcastInputs, setEstimatedNumRecords, setEstimatedOutputSize, setParallelism, toString

从类继承的方法 java.lang.Object

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

构造器详细资料

BulkIterationNode

public BulkIterationNode(org.apache.flink.api.common.operators.base.BulkIterationBase<?> iteration)

Creates a new node for the bulk iteration.

参数:

iteration - The bulk iteration the node represents.

方法详细资料

getIterationContract

public org.apache.flink.api.common.operators.base.BulkIterationBase<?> getIterationContract()

getPartialSolution

public BulkPartialSolutionNode getPartialSolution()

Gets the partialSolution from this BulkIterationNode.

返回:

The partialSolution.

setPartialSolution

public void setPartialSolution(BulkPartialSolutionNode partialSolution)

Sets the partialSolution for this BulkIterationNode.

参数:

partialSolution - The partialSolution to set.

getNextPartialSolution

public OptimizerNode getNextPartialSolution()

Gets the nextPartialSolution from this BulkIterationNode.

返回:

The nextPartialSolution.

setNextPartialSolution

public void setNextPartialSolution(OptimizerNode nextPartialSolution,
                                   OptimizerNode terminationCriterion)

Sets the nextPartialSolution for this BulkIterationNode.

参数:

nextPartialSolution - The nextPartialSolution to set.

getCostWeight

public int getCostWeight()

覆盖:

getCostWeight 在类中 OptimizerNode

getSingleRootOfStepFunction

public OptimizerNode getSingleRootOfStepFunction()

getOperatorName

public String getOperatorName()

从类复制的说明: OptimizerNode

Gets the name of this node, which is the name of the function/operator, or data source / data sink.

指定者:

getOperatorName 在类中 OptimizerNode

返回:

The node name.

getSemanticProperties

public org.apache.flink.api.common.operators.SemanticProperties getSemanticProperties()

覆盖:

getSemanticProperties 在类中 SingleInputNode

readStubAnnotations

protected void readStubAnnotations()

从类复制的说明: OptimizerNode

Reads all stub annotations, i.e. which fields remain constant, what cardinality bounds the functions have, which fields remain unique.

覆盖:

readStubAnnotations 在类中 OptimizerNode

computeOperatorSpecificDefaultEstimates

protected void computeOperatorSpecificDefaultEstimates(DataStatistics statistics)

指定者:

computeOperatorSpecificDefaultEstimates 在类中 OptimizerNode

getPossibleProperties

protected List<OperatorDescriptorSingle> getPossibleProperties()

指定者:

getPossibleProperties 在类中 SingleInputNode

computeInterestingPropertiesForInputs

public void computeInterestingPropertiesForInputs(CostEstimator estimator)

从类复制的说明: OptimizerNode

Tells the node to compute the interesting properties for its inputs. The interesting properties for the node itself must have been computed before. The node must then see how many of interesting properties it preserves and add its own.

覆盖:

computeInterestingPropertiesForInputs 在类中 SingleInputNode

参数:

estimator - The CostEstimator instance to use for plan cost estimation.

clearInterestingProperties

public void clearInterestingProperties()

覆盖:

clearInterestingProperties 在类中 OptimizerNode

computeUnclosedBranchStack

public void computeUnclosedBranchStack()

从类复制的说明: OptimizerNode

This method causes the node to compute the description of open branches in its sub-plan. An open branch describes, that a (transitive) child node had multiple outputs, which have not all been re-joined in the sub-plan. This method needs to set the openBranches field to a stack of unclosed branches, the latest one top. A branch is considered closed, if some later node sees all of the branching node's outputs, no matter if there have been more branches to different paths in the meantime.

覆盖:

computeUnclosedBranchStack 在类中 SingleInputNode

instantiateCandidate

protected void instantiateCandidate(OperatorDescriptorSingle dps,
                                    Channel in,
                                    List<Set<? extends NamedChannel>> broadcastPlanChannels,
                                    List<PlanNode> target,
                                    CostEstimator estimator,
                                    RequestedGlobalProperties globPropsReq,
                                    RequestedLocalProperties locPropsReq)

覆盖:

instantiateCandidate 在类中 SingleInputNode

acceptForStepFunction

public void acceptForStepFunction(org.apache.flink.util.Visitor<OptimizerNode> visitor)

指定者:

acceptForStepFunction 在接口中 IterationNode