Package org.apache.flink.table.planner.plan.utils

Class RelDescriptionWriterImpl

java.lang.Object

org.apache.flink.table.planner.plan.utils.RelDescriptionWriterImpl

All Implemented Interfaces:

org.apache.calcite.rel.RelWriter

public class RelDescriptionWriterImpl
extends Object
implements org.apache.calcite.rel.RelWriter

Converts an RelNode to string with only the information from the RelNode itself without the information from its inputs. This is mainly used to generate FlinkRelNode#getRelDetailedDescription().

Constructor Summary

Constructors

Constructor	Description
RelDescriptionWriterImpl(PrintWriter pw)

Method Summary

Modifier and Type	Method	Description
org.apache.calcite.rel.RelWriter	done(org.apache.calcite.rel.RelNode node)
void	explain(org.apache.calcite.rel.RelNode rel, List<org.apache.calcite.util.Pair<String,Object>> valueList)
org.apache.calcite.sql.SqlExplainLevel	getDetailLevel()
org.apache.calcite.rel.RelWriter	input(String term, org.apache.calcite.rel.RelNode input)
org.apache.calcite.rel.RelWriter	item(String term, Object value)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.calcite.rel.RelWriter

itemIf, nest

Constructor Details

RelDescriptionWriterImpl

public RelDescriptionWriterImpl(PrintWriter pw)

Method Details

explain

public void explain(org.apache.calcite.rel.RelNode rel,
 List<org.apache.calcite.util.Pair<String,Object>> valueList)

Specified by:

explain in interface org.apache.calcite.rel.RelWriter

getDetailLevel

public org.apache.calcite.sql.SqlExplainLevel getDetailLevel()

Specified by:

getDetailLevel in interface org.apache.calcite.rel.RelWriter

input

public org.apache.calcite.rel.RelWriter input(String term,
 org.apache.calcite.rel.RelNode input)

Specified by:

input in interface org.apache.calcite.rel.RelWriter

item

public org.apache.calcite.rel.RelWriter item(String term,
 Object value)

Specified by:

item in interface org.apache.calcite.rel.RelWriter

done

public org.apache.calcite.rel.RelWriter done(org.apache.calcite.rel.RelNode node)

Specified by:

done in interface org.apache.calcite.rel.RelWriter