BaseDeclarationIdentificationVariableFinder (EclipseLink 2.6.1, API Reference)

java.lang.Object
- org.eclipse.persistence.jpa.jpql.parser.AnonymousExpressionVisitor
- - org.eclipse.persistence.jpa.jpql.parser.AbstractTraverseParentVisitor
  - - org.eclipse.persistence.jpa.jpql.BaseDeclarationIdentificationVariableFinder

All Implemented Interfaces:

ExpressionVisitor
```
public class BaseDeclarationIdentificationVariableFinder
extends AbstractTraverseParentVisitor
```
This visitor traverses the parsed tree and retrieves the IdentificationVariable defined in the base range variable declaration for the top-level statement if and only if the query is a DELETE or UPDATE query.

Version:

2.5

Author:

Pascal Filion

Since:

2.5

Field Summary

Fields
Modifier and Type	Field and Description
`IdentificationVariable`	`expression` The `IdentificationVariable` used to define the abstract schema name from either the UPDATE or DELETE clause.
`protected boolean`	`traverse` Determines if the `RangeVariableDeclaration` should traverse its identification variable expression or simply visit the parent hierarchy.

Constructor Summary

Constructors
Constructor and Description

BaseDeclarationIdentificationVariableFinder()
Creates a new BaseDeclarationIdentificationVariableFinder.

Constructors
Constructor and Description
`BaseDeclarationIdentificationVariableFinder()` Creates a new `BaseDeclarationIdentificationVariableFinder`.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`visit(BadExpression expression)` Visits the `BadExpression` expression.
`void`	`visit(CollectionExpression expression)` Visits the `CollectionExpression` expression.
`void`	`visit(DeleteClause expression)` Visits the `DeleteClause` expression.
`void`	`visit(DeleteStatement expression)` Visits the `DeleteStatement` expression.
`void`	`visit(FromClause expression)` Visits the `FromClause` expression.
`void`	`visit(IdentificationVariable expression)` Visits the `IdentificationVariable` expression.
`void`	`visit(IdentificationVariableDeclaration expression)` Visits the `IdentificationVariableDeclaration` expression.
`void`	`visit(JPQLExpression expression)` Visits the `JPQLExpression` expression.
`void`	`visit(NullExpression expression)` Visits the `NullExpression` expression.
`void`	`visit(RangeVariableDeclaration expression)` Visits the `RangeVariableDeclaration` expression.
`void`	`visit(SelectStatement expression)` Visits the `SelectStatement` expression.
`void`	`visit(UnknownExpression expression)` Visits the `UnknownExpression` expression.
`void`	`visit(UpdateClause expression)` Visits the `UpdateClause` expression.
`void`	`visit(UpdateStatement expression)` Visits the `UpdateStatement` expression.

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

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - expression
```
public IdentificationVariable expression
```
    The IdentificationVariable used to define the abstract schema name from either the UPDATE or DELETE clause.
  - traverse
```
protected boolean traverse
```
    Determines if the RangeVariableDeclaration should traverse its identification variable expression or simply visit the parent hierarchy.
- Constructor Detail
  - BaseDeclarationIdentificationVariableFinder
```
public BaseDeclarationIdentificationVariableFinder()
```
    Creates a new BaseDeclarationIdentificationVariableFinder.
- Method Detail
  - visit
```
public void visit(BadExpression expression)
```
    Visits the BadExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    expression - The Expression to visit
  - visit
```
public void visit(CollectionExpression expression)
```
    Visits the CollectionExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    expression - The Expression to visit
  - visit
```
public void visit(DeleteClause expression)
```
    Visits the DeleteClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    expression - The Expression to visit
  - visit
```
public void visit(DeleteStatement expression)
```
    Visits the DeleteStatement expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    expression - The Expression to visit
  - visit
```
public void visit(FromClause expression)
```
    Visits the FromClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    expression - The Expression to visit
  - visit
```
public void visit(IdentificationVariable expression)
```
    Visits the IdentificationVariable expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    expression - The Expression to visit
  - visit
```
public void visit(IdentificationVariableDeclaration expression)
```
    Visits the IdentificationVariableDeclaration expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    expression - The Expression to visit
  - visit
```
public void visit(JPQLExpression expression)
```
    Visits the JPQLExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AbstractTraverseParentVisitor
    
    Parameters:
    expression - The Expression to visit
  - visit
```
public void visit(NullExpression expression)
```
    Visits the NullExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    expression - The Expression to visit
  - visit
```
public void visit(RangeVariableDeclaration expression)
```
    Visits the RangeVariableDeclaration expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    expression - The Expression to visit
  - visit
```
public void visit(SelectStatement expression)
```
    Visits the SelectStatement expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    expression - The Expression to visit
  - visit
```
public void visit(UnknownExpression expression)
```
    Visits the UnknownExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    expression - The UnknownExpression to visit
  - visit
```
public void visit(UpdateClause expression)
```
    Visits the UpdateClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    expression - The UpdateClause to visit
  - visit
```
public void visit(UpdateStatement expression)
```
    Visits the UpdateStatement expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    expression - The UpdateStatement to visit

Class BaseDeclarationIdentificationVariableFinder

Field Summary

Constructor Summary

Method Summary

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

Methods inherited from class org.eclipse.persistence.jpa.jpql.parser.AnonymousExpressionVisitor

Methods inherited from class java.lang.Object

Field Detail

expression

traverse

Constructor Detail

BaseDeclarationIdentificationVariableFinder

Method Detail

visit

visit

visit

visit

visit

visit

visit

visit

visit

visit

visit

visit

visit

visit