ch.ethz.mxquery.query.optimizer
Class TermVisitor

java.lang.Object
  ch.ethz.mxquery.query.optimizer.TermVisitor

public final class TermVisitor
extends java.lang.Object

This is a helper class to traverse a term and find the dependencies on variables

Constructor Summary

TermVisitor(Literal term, java.util.List startVars)

TermVisitor(Literal term, java.util.List startVars, java.util.List endVars)
Creates a new term visitor, to identify the dependencies on variables

Method Summary

java.lang.String	getColumnName()
int	getDependency()

Methods inherited from class java.lang.Object

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

Constructor Detail

TermVisitor

public TermVisitor(Literal term,
                   java.util.List startVars,
                   java.util.List endVars)

Creates a new term visitor, to identify the dependencies on variables

Parameters:

term -

startVars -

endVars -

TermVisitor

public TermVisitor(Literal term,
                   java.util.List startVars)

Method Detail

getDependency

public int getDependency()

getColumnName

public java.lang.String getColumnName()