DefaultSemanticValidator.NullValueVisitor (EclipseLink 2.7.15, API Reference)

java.lang.Object
- org.eclipse.persistence.jpa.jpql.parser.AbstractExpressionVisitor
- - org.eclipse.persistence.jpa.jpql.tools.DefaultSemanticValidator.NullValueVisitor

All Implemented Interfaces:: ExpressionVisitor

Enclosing class:: DefaultSemanticValidator

protected static class DefaultSemanticValidator.NullValueVisitor
extends AbstractExpressionVisitor

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  protected boolean valid
  Determines whether the Expression visited represents Expression.NULL.
- Constructor Summary
  
  Constructors
  Modifier Constructor Description
  
  protected NullValueVisitor()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  void visit(KeywordExpression expression)
  Visits the KeywordExpression expression.
  - Methods inherited from class org.eclipse.persistence.jpa.jpql.parser.AbstractExpressionVisitor
    visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - valid
```
protected boolean valid
```
    Determines whether the Expression visited represents Expression.NULL.
- Constructor Detail
  - NullValueVisitor
```
protected NullValueVisitor()
```
- Method Detail
  - visit
```
public void visit(KeywordExpression expression)
```
    Visits the KeywordExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AbstractExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit