JoinDeclNode

java.lang.Object
- org.eclipse.persistence.internal.jpa.parsing.Node
- - org.eclipse.persistence.internal.jpa.parsing.IdentificationVariableDeclNode
  - - org.eclipse.persistence.internal.jpa.parsing.JoinDeclNode

```
public class JoinDeclNode
extends IdentificationVariableDeclNode
```
INTERNAL
Purpose: Represent JOIN identification variable declaration as part of the FROM clause: JOIN c.orders o.
Responsibilities:
- Manage the path node and the outer join flag of the JOIN clause.

Field Summary
- Fields inherited from class org.eclipse.persistence.internal.jpa.parsing.Node
  alias, left, right, shouldGenerateExpression

Constructor Summary

Constructors
Constructor Description

JoinDeclNode()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Node`	`getPath()`
`boolean`	`isOuterJoin()`
`Node`	`qualifyAttributeAccess(ParseTreeContext context)`	INTERNAL Check the path child node for an unqualified field access and if so, replace it by a qualified field access.
`void`	`setOuterJoin(boolean outerJoin)`
`void`	`setPath(Node node)`
`void`	`validate(ParseTreeContext context)`	INTERNAL Validate node and calculate its type.

Methods inherited from class org.eclipse.persistence.internal.jpa.parsing.IdentificationVariableDeclNode
calculateCanonicalName, getCanonicalVariableName, getVariableName, setVariableName

Methods inherited from class org.eclipse.persistence.internal.jpa.parsing.Node
addToExpression, appendExpression, applyToQuery, generateExpression, getAlias, getAsString, getColumn, getLeft, getLine, getRight, getType, hasLeft, hasRight, isAggregateNode, isAliasableNode, isAttributeNode, isConstructorNode, isCountNode, isDivideNode, isDotNode, isEscape, isLiteralNode, isMapKeyNode, isMinusNode, isMultiplyNode, isNotNode, isParameterNode, isPlusNode, isSubqueryNode, isVariableNode, resolveAttribute, resolveClass, resolveClass, resolveMapping, resolveMapping, setAlias, setColumn, setLeft, setLine, setRight, setType, toString, toString, toStringDisplayName, toStringIndent, validateParameter

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

- Constructor Detail
  - JoinDeclNode
```
public JoinDeclNode()
```
- Method Detail
  - getPath
```
public Node getPath()
```
    Overrides:
    
    getPath in class IdentificationVariableDeclNode
  - setPath
```
public void setPath(Node node)
```
  - isOuterJoin
```
public boolean isOuterJoin()
```
  - setOuterJoin
```
public void setOuterJoin(boolean outerJoin)
```
  - qualifyAttributeAccess
```
public Node qualifyAttributeAccess(ParseTreeContext context)
```
    INTERNAL Check the path child node for an unqualified field access and if so, replace it by a qualified field access.
    
    Overrides:
    
    qualifyAttributeAccess in class Node
  - validate
```
public void validate(ParseTreeContext context)
```
    INTERNAL Validate node and calculate its type.
    
    Overrides:
    
    validate in class IdentificationVariableDeclNode