org.apache.flink.optimizer.operators

类 GroupCombineProperties

java.lang.Object

org.apache.flink.optimizer.operators.OperatorDescriptorSingle

org.apache.flink.optimizer.operators.GroupCombineProperties

所有已实现的接口:

AbstractOperatorDescriptor

public final class GroupCombineProperties
extends OperatorDescriptorSingle

The properties file belonging to the GroupCombineNode. It translates the GroupCombine operation to the driver strategy SORTED_GROUP_COMBINE and sets the relevant grouping and sorting keys.

另请参阅:

GroupCombineNode

字段概要

从类继承的字段 org.apache.flink.optimizer.operators.OperatorDescriptorSingle

keyList, keys

构造器概要

构造器

构造器和说明
GroupCombineProperties(org.apache.flink.api.common.operators.util.FieldSet groupKeys, org.apache.flink.api.common.operators.Ordering additionalOrderKeys)

方法概要

限定符和类型	方法和说明
GlobalProperties	computeGlobalProperties(GlobalProperties gProps) Returns the global properties which are present after the operator was applied on the provided global properties.
LocalProperties	computeLocalProperties(LocalProperties lProps) Returns the local properties which are present after the operator was applied on the provided local properties.
protected List<RequestedGlobalProperties>	createPossibleGlobalProperties() Returns a list of global properties that are required by this operator descriptor.
protected List<RequestedLocalProperties>	createPossibleLocalProperties() Returns a list of local properties that are required by this operator descriptor.
org.apache.flink.runtime.operators.DriverStrategy	getStrategy() Gets the runtime strategy to be executed by this operator.
SingleInputPlanNode	instantiate(Channel in, SingleInputNode node)

从类继承的方法 org.apache.flink.optimizer.operators.OperatorDescriptorSingle

getPossibleGlobalProperties, getPossibleLocalProperties

从类继承的方法 java.lang.Object

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

构造器详细资料

GroupCombineProperties

public GroupCombineProperties(org.apache.flink.api.common.operators.util.FieldSet groupKeys,
                              org.apache.flink.api.common.operators.Ordering additionalOrderKeys)

方法详细资料

getStrategy

public org.apache.flink.runtime.operators.DriverStrategy getStrategy()

从接口复制的说明: AbstractOperatorDescriptor

Gets the runtime strategy to be executed by this operator.

返回:

The runtime strategy.

instantiate

public SingleInputPlanNode instantiate(Channel in,
                                       SingleInputNode node)

指定者:

instantiate 在类中 OperatorDescriptorSingle

createPossibleGlobalProperties

protected List<RequestedGlobalProperties> createPossibleGlobalProperties()

从类复制的说明: OperatorDescriptorSingle

Returns a list of global properties that are required by this operator descriptor.

指定者:

createPossibleGlobalProperties 在类中 OperatorDescriptorSingle

返回:

A list of global properties that are required by this operator descriptor.

createPossibleLocalProperties

protected List<RequestedLocalProperties> createPossibleLocalProperties()

从类复制的说明: OperatorDescriptorSingle

Returns a list of local properties that are required by this operator descriptor.

指定者:

createPossibleLocalProperties 在类中 OperatorDescriptorSingle

返回:

A list of local properties that are required by this operator descriptor.

computeGlobalProperties

public GlobalProperties computeGlobalProperties(GlobalProperties gProps)

从类复制的说明: OperatorDescriptorSingle

Returns the global properties which are present after the operator was applied on the provided global properties.

指定者:

computeGlobalProperties 在类中 OperatorDescriptorSingle

参数:

gProps - The global properties on which the operator is applied.

返回:

The global properties which are valid after the operator has been applied.

computeLocalProperties

public LocalProperties computeLocalProperties(LocalProperties lProps)

从类复制的说明: OperatorDescriptorSingle

Returns the local properties which are present after the operator was applied on the provided local properties.

指定者:

computeLocalProperties 在类中 OperatorDescriptorSingle

参数:

lProps - The local properties on which the operator is applied.

返回:

The local properties which are valid after the operator has been applied.