org.teiid.language
Class IsNull

java.lang.Object
  org.teiid.language.BaseLanguageObject
      org.teiid.language.Condition
          org.teiid.language.IsNull

All Implemented Interfaces:

Expression, LanguageObject, Predicate

public class IsNull
extends Condition
implements Predicate

Represents an IS NULL predicate.

Constructor Summary

IsNull(Expression expr, boolean isNegated)

Method Summary

void	acceptVisitor(LanguageObjectVisitor visitor)
Expression	getExpression()
boolean	isNegated()
void	setExpression(Expression expression)
void	setNegated(boolean negated)

Methods inherited from class org.teiid.language.Condition

getType

Methods inherited from class org.teiid.language.BaseLanguageObject

toString

Methods inherited from class java.lang.Object

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

Constructor Detail

IsNull

public IsNull(Expression expr,
              boolean isNegated)

Method Detail

getExpression

public Expression getExpression()

isNegated

public boolean isNegated()

acceptVisitor

public void acceptVisitor(LanguageObjectVisitor visitor)

Specified by:

acceptVisitor in interface LanguageObject

setExpression

public void setExpression(Expression expression)

setNegated

public void setNegated(boolean negated)