org.eigenbase.rex
Class RexVariable

java.lang.Object
  org.eigenbase.rex.RexNode
      org.eigenbase.rex.RexVariable

Direct Known Subclasses:

RexCorrelVariable, RexDynamicParam, RexSlot

public abstract class RexVariable
extends RexNode

A row-expression which references a field.

Since:

Nov 24, 2003

Version:

$Id: //open/dev/farrago/src/org/eigenbase/rex/RexVariable.java#9 $

Author:

jhyde

Field Summary

protected String	name
protected RelDataType	type

Fields inherited from class org.eigenbase.rex.RexNode

digest, EMPTY_ARRAY

Constructor Summary

protected

RexVariable(String name, RelDataType type)

Method Summary

String	getName() Returns the name of this variable.
RelDataType	getType()

Methods inherited from class org.eigenbase.rex.RexNode

accept, clone, getKind, isA, isAlwaysTrue, toString

Methods inherited from class java.lang.Object

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

Field Detail

name

protected final String name

type

protected final RelDataType type

Constructor Detail

RexVariable

protected RexVariable(String name,
                      RelDataType type)

Method Detail

getType

public RelDataType getType()

Specified by:

getType in class RexNode

getName

public String getName()

Returns the name of this variable.