org.eigenbase.relopt
Class RelOptUtil.VariableSetVisitor

java.lang.Object
  org.eigenbase.rel.RelVisitor
      org.eigenbase.relopt.RelOptUtil.VariableSetVisitor

Enclosing class:

RelOptUtil

private static class RelOptUtil.VariableSetVisitor
extends RelVisitor

Field Summary

(package private) Set<String>

variables

Constructor Summary

private

RelOptUtil.VariableSetVisitor()

Method Summary

void	visit(RelNode p, int ordinal, RelNode parent) Visits a node during a traversal.

Methods inherited from class org.eigenbase.rel.RelVisitor

go, replaceRoot

Methods inherited from class java.lang.Object

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

Field Detail

variables

final Set<String> variables

Constructor Detail

RelOptUtil.VariableSetVisitor

private RelOptUtil.VariableSetVisitor()

Method Detail

visit

public void visit(RelNode p,
                  int ordinal,
                  RelNode parent)

Description copied from class: RelVisitor

Visits a node during a traversal.

Overrides:

visit in class RelVisitor

Parameters:

p - Node to visit

ordinal - Ordinal of node within its parent

parent - Parent of the node, or null if it is the root of the traversal