org.apache.flink.optimizer.dag

类 WorksetNode

java.lang.Object

org.apache.flink.optimizer.dag.OptimizerNode

org.apache.flink.optimizer.dag.AbstractPartialSolutionNode

org.apache.flink.optimizer.dag.WorksetNode

所有已实现的接口:

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

public class WorksetNode
extends AbstractPartialSolutionNode

The optimizer's internal representation of the partial solution that is input to 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.OptimizerNode

cachedPlans, closedBranchingNodes, costWeight, 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
WorksetNode(org.apache.flink.api.common.operators.base.DeltaIterationBase.WorksetPlaceHolder<?> psph, WorksetIterationNode iterationNode)

方法概要

限定符和类型	方法和说明
void	computeOutputEstimates(DataStatistics statistics) Causes this node to compute its output estimates (such as number of rows, size in bytes) based on the inputs and the compiler hints.
void	computeUnclosedBranchStack() This method causes the node to compute the description of open branches in its sub-plan.
WorksetPlanNode	getCurrentWorksetPlanNode()
WorksetIterationNode	getIterationNode()
org.apache.flink.api.common.operators.base.DeltaIterationBase.WorksetPlaceHolder<?>	getOperator() Gets the contract object for this data source node.
String	getOperatorName() Gets the name of this node, which is the name of the function/operator, or data source / data sink.
void	setCandidateProperties(GlobalProperties gProps, LocalProperties lProps, Channel initialInput)

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

accept, computeInterestingPropertiesForInputs, computeOperatorSpecificDefaultEstimates, copyEstimates, getAlternativePlans, getIncomingConnections, getSemanticProperties, identifyDynamicPath, isOnDynamicPath, readStubAnnotations, setInput

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

addBroadcastConnection, addClosedBranch, addClosedBranches, addOutgoingConnection, areBranchCompatible, clearInterestingProperties, computeUnclosedBranchStackForBroadcastInputs, computeUnionOfInterestingPropertiesFromSuccessors, getBranchesForParent, getBroadcastConnectionNames, getBroadcastConnections, getClosedBranchingNodes, getCostWeight, getDumpableInputs, getEstimatedAvgWidthPerOutputRecord, getEstimatedNumRecords, getEstimatedOutputSize, getId, getInterestingProperties, getMaxDepth, getMinimalMemoryAcrossAllSubTasks, getOpenBranches, getOptimizerNode, getOutgoingConnections, getParallelism, getPlanNode, getPredecessors, getUniqueFields, hasUnclosedBranches, haveAllOutputConnectionInterestingProperties, initId, isBranching, 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

WorksetNode

public WorksetNode(org.apache.flink.api.common.operators.base.DeltaIterationBase.WorksetPlaceHolder<?> psph,
                   WorksetIterationNode iterationNode)

方法详细资料

setCandidateProperties

public void setCandidateProperties(GlobalProperties gProps,
                                   LocalProperties lProps,
                                   Channel initialInput)

getCurrentWorksetPlanNode

public WorksetPlanNode getCurrentWorksetPlanNode()

getIterationNode

public WorksetIterationNode getIterationNode()

指定者:

getIterationNode 在类中 AbstractPartialSolutionNode

computeOutputEstimates

public void computeOutputEstimates(DataStatistics statistics)

从类复制的说明: OptimizerNode

Causes this node to compute its output estimates (such as number of rows, size in bytes) based on the inputs and the compiler hints. The compiler hints are instantiated with conservative default values which are used if no other values are provided. Nodes may access the statistics to determine relevant information.

覆盖:

computeOutputEstimates 在类中 OptimizerNode

参数:

statistics - The statistics object which may be accessed to get statistical information. The parameter may be null, if no statistics are available.

getOperator

public org.apache.flink.api.common.operators.base.DeltaIterationBase.WorksetPlaceHolder<?> getOperator()

Gets the contract object for this data source node.

覆盖:

getOperator 在类中 OptimizerNode

返回:

The contract.

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.

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.

指定者:

computeUnclosedBranchStack 在类中 OptimizerNode