org.apache.flink.optimizer.traversals

类 GraphCreatingVisitor

java.lang.Object

org.apache.flink.optimizer.traversals.GraphCreatingVisitor

所有已实现的接口:

org.apache.flink.util.Visitor<org.apache.flink.api.common.operators.Operator<?>>

public class GraphCreatingVisitor
extends Object
implements org.apache.flink.util.Visitor<org.apache.flink.api.common.operators.Operator<?>>

This traversal creates the optimizer DAG from a program. It works as a visitor that walks the program's flow in a depth-first fashion, starting from the data sinks. During the descent it creates an optimizer node for each operator, respectively data source or sink. During the ascent it connects the nodes to the full graph.

构造器概要

构造器

构造器和说明
GraphCreatingVisitor(int defaultParallelism, org.apache.flink.api.common.ExecutionMode defaultDataExchangeMode)

方法概要

限定符和类型	方法和说明
List<DataSinkNode>	getSinks()
void	postVisit(org.apache.flink.api.common.operators.Operator<?> c)
boolean	preVisit(org.apache.flink.api.common.operators.Operator<?> c)

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

GraphCreatingVisitor

public GraphCreatingVisitor(int defaultParallelism,
                            org.apache.flink.api.common.ExecutionMode defaultDataExchangeMode)

方法详细资料

getSinks

public List<DataSinkNode> getSinks()

preVisit

public boolean preVisit(org.apache.flink.api.common.operators.Operator<?> c)

指定者:

preVisit 在接口中 org.apache.flink.util.Visitor<org.apache.flink.api.common.operators.Operator<?>>

postVisit

public void postVisit(org.apache.flink.api.common.operators.Operator<?> c)

指定者:

postVisit 在接口中 org.apache.flink.util.Visitor<org.apache.flink.api.common.operators.Operator<?>>