Package org.apache.flink.table.planner.plan.nodes.exec

Class ExecNodeGraphGenerator

java.lang.Object

org.apache.flink.table.planner.plan.nodes.exec.ExecNodeGraphGenerator

public class ExecNodeGraphGenerator
extends Object

A generator that generates a ExecNode graph from a graph of FlinkPhysicalRels.

This traverses the tree of FlinkPhysicalRel starting from the sinks. At each rel we recursively transform the inputs, then create a ExecNode. Each rel will be visited only once, that means a rel will only generate one ExecNode instance.

Exchange and Union will create a actual node in the ExecNode graph as the first step, once all ExecNodes' implementation are separated from physical rel, we will use InputProperty to replace them.

Constructor Summary

Constructors

Constructor	Description
ExecNodeGraphGenerator()

Method Summary

Modifier and Type	Method	Description
ExecNodeGraph	generate(List<FlinkPhysicalRel> relNodes, boolean isCompiled)

Methods inherited from class java.lang.Object

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

Constructor Details

ExecNodeGraphGenerator

public ExecNodeGraphGenerator()

Method Details

generate

public ExecNodeGraph generate(List<FlinkPhysicalRel> relNodes,
 boolean isCompiled)