org.apache.calcite.rel.externalize

Class RelDotWriter

java.lang.Object

org.apache.calcite.rel.externalize.RelWriterImpl

org.apache.calcite.rel.externalize.RelDotWriter

All Implemented Interfaces:

RelWriter

@Value.Enclosing
public class RelDotWriter
extends RelWriterImpl

Utility to dump a rel node plan in dot format.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	RelDotWriter.WriteOption Options for displaying the rel node plan in dot format.

Field Summary

Fields inherited from class org.apache.calcite.rel.externalize.RelWriterImpl

detailLevel, pw, spacer, withIdPrefix

Constructor Summary

Constructors

Constructor and Description
RelDotWriter(PrintWriter pw, SqlExplainLevel detailLevel, boolean withIdPrefix)
RelDotWriter(PrintWriter pw, SqlExplainLevel detailLevel, boolean withIdPrefix, RelDotWriter.WriteOption option)

Method Summary

Modifier and Type	Method and Description
RelWriter	done(RelNode node) Writes the completed explanation.
protected void	explain_(RelNode rel, List<Pair<String,Object>> values)
protected String	getRelNodeLabel(RelNode rel, List<Pair<String,Object>> values)

Methods inherited from class org.apache.calcite.rel.externalize.RelWriterImpl

explain, getDetailLevel, item, simple

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

input, itemIf, nest

Constructor Detail

RelDotWriter

public RelDotWriter(PrintWriter pw,
                    SqlExplainLevel detailLevel,
                    boolean withIdPrefix)

RelDotWriter

public RelDotWriter(PrintWriter pw,
                    SqlExplainLevel detailLevel,
                    boolean withIdPrefix,
                    RelDotWriter.WriteOption option)

Method Detail

explain_

protected void explain_(RelNode rel,
                        List<Pair<String,Object>> values)

Overrides:

explain_ in class RelWriterImpl

getRelNodeLabel

protected String getRelNodeLabel(RelNode rel,
                                 List<Pair<String,Object>> values)

done

public RelWriter done(RelNode node)

Description copied from interface: RelWriter

Writes the completed explanation.

Specified by:

done in interface RelWriter

Overrides:

done in class RelWriterImpl