IsNull (Teiid 15.0.0 API)

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

Constructors
Constructor Description

IsNull(Expression expr, boolean isNegated)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`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, isExpression, setExpression

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)