AbstractContentAssistVisitor.SubqueryVisitor (EclipseLink 2.7.16, API Reference)

java.lang.Object
- org.eclipse.persistence.jpa.jpql.parser.AnonymousExpressionVisitor
- - org.eclipse.persistence.jpa.jpql.parser.AbstractTraverseParentVisitor
  - - org.eclipse.persistence.jpa.jpql.tools.AbstractContentAssistVisitor.SubqueryVisitor

All Implemented Interfaces:

ExpressionVisitor

Enclosing class:

AbstractContentAssistVisitor
```
protected static final class AbstractContentAssistVisitor.SubqueryVisitor
extends AbstractTraverseParentVisitor
```
This visitor determines if an Expression is in a subquery.

Field Summary

Fields
Modifier and Type Field Description

protected SimpleSelectStatement expression
The subquery Expression if it's the first clause visitor.

Constructor Summary

Constructors
Modifier Constructor Description

protected SubqueryVisitor()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`dispose()`	Disposes of the internal data.
`boolean`	`isInSubquery()`	Determines whether the visited `Expression` is in a subquery or in the top-level query.
`void`	`visit(SimpleSelectStatement expression)`	Visits the `SimpleSelectStatement` expression.

Methods inherited from class org.eclipse.persistence.jpa.jpql.parser.AbstractTraverseParentVisitor
visit, visit

Methods inherited from class org.eclipse.persistence.jpa.jpql.parser.AnonymousExpressionVisitor
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
  - expression
```
protected SimpleSelectStatement expression
```
    The subquery Expression if it's the first clause visitor. Otherwise it will be null if the Expression is in the top-level query.
- Constructor Detail
  - SubqueryVisitor
```
protected SubqueryVisitor()
```
- Method Detail
  - dispose
```
public void dispose()
```
    Disposes of the internal data.
  - isInSubquery
```
public boolean isInSubquery()
```
    Determines whether the visited Expression is in a subquery or in the top-level query.
    
    Returns:
    
    true if the owning query is a subquery; false if it's the top-level query
  - visit
```
public void visit(SimpleSelectStatement expression)
```
    Visits the SimpleSelectStatement expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit