org.eigenbase.rel.metadata
Class RelMdExplainVisibility

java.lang.Object
  org.eigenbase.rel.metadata.ReflectiveRelMetadataProvider
      org.eigenbase.rel.metadata.RelMdExplainVisibility

All Implemented Interfaces:

RelMetadataProvider, ReflectiveVisitor

public class RelMdExplainVisibility
extends ReflectiveRelMetadataProvider

RelMdExplainVisibility supplies a default implementation of RelMetadataQuery.isVisibleInExplain(org.eigenbase.rel.RelNode, org.eigenbase.sql.SqlExplainLevel) for the standard logical algebra.

Version:

$Id: //open/dev/farrago/src/org/eigenbase/rel/metadata/RelMdExplainVisibility.java#4 $

Author:

Zelaine Fong

Constructor Summary

RelMdExplainVisibility()

Method Summary

Boolean

isVisibleInExplain(RelNode rel)

Methods inherited from class org.eigenbase.rel.metadata.ReflectiveRelMetadataProvider

getRelMetadata, mapParameterTypes

Methods inherited from class java.lang.Object

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

Constructor Detail

RelMdExplainVisibility

public RelMdExplainVisibility()

Method Detail

isVisibleInExplain

public Boolean isVisibleInExplain(RelNode rel)