net.sf.saffron.rex
Class RexFieldAccess

java.lang.Object
  |
  +--net.sf.saffron.rex.RexNode
        |
        +--net.sf.saffron.rex.RexFieldAccess

public class RexFieldAccess

extends RexNode

Access to a field of a row-expression.

Since:

Nov 24, 2003

Version:

$Id: $

Author:

jhyde

Field Summary

private RexNode	expr
private SaffronField	field

Fields inherited from class net.sf.saffron.rex.RexNode

digest

Constructor Summary

(package private)

RexFieldAccess(RexNode expr, SaffronField field)

Method Summary

Object	clone()
RexKind	getKind() Returns the kind of node this is.
String	getName() Returns the name of the field.
RexNode	getReferenceExpr() Returns the expression whose field is being accessed.
SaffronType	getType()

Methods inherited from class net.sf.saffron.rex.RexNode

isA, isAlwaysTrue, toString

Methods inherited from class java.lang.Object

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

Field Detail

expr

private final RexNode expr

field

private final SaffronField field

Constructor Detail

RexFieldAccess

RexFieldAccess(RexNode expr,
               SaffronField field)

Method Detail

getType

public SaffronType getType()

Specified by:

getType in class RexNode

clone

public Object clone()

Specified by:

clone in class RexNode

getKind

public RexKind getKind()

Description copied from class: RexNode

Returns the kind of node this is.

Overrides:

getKind in class RexNode

Returns:

A RexKind value, never null

getReferenceExpr

public RexNode getReferenceExpr()

Returns the expression whose field is being accessed.

getName

public String getName()

Returns the name of the field.