VariableNode (EclipseLink 2.6.3, "build v20160428-59c81c5" API Reference)

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

Constructor Summary

Constructors
Constructor and Description

VariableNode()
VariableNode constructor comment.

VariableNode(java.lang.String newVariableName)

Constructors
Constructor and Description
`VariableNode()` VariableNode constructor comment.
`VariableNode(java.lang.String newVariableName)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`applyToQuery(ObjectLevelReadQuery theQuery, GenerationContext generationContext)` INTERNAL Apply this node to the passed query
`Expression`	`generateBaseBuilderExpression(GenerationContext context)`
`Expression`	`generateExpression(GenerationContext generationContext)` INTERNAL Generate an expression for the node.
`Expression`	`generateExpressionForAlias(GenerationContext context)`
`java.lang.String`	`getAsString()` INTERNAL Get the string representation of this node.
`java.lang.String`	`getCanonicalVariableName()`
`Node`	`getNodeForAlias(GenerationContext context)`
`java.lang.Object`	`getTypeForMapKey(ParseTreeContext context)`
`java.lang.String`	`getVariableName()`
`boolean`	`isAlias(GenerationContext context)` isAlias: Answer true if this variable represents an alias in the FROM clause.
`boolean`	`isAlias(ParseTreeContext context)`
`boolean`	`isAliasableNode()`
`boolean`	`isVariableNode()` INTERNAL Is this node a VariableNode
`Node`	`qualifyAttributeAccess(ParseTreeContext context)` INTERNAL This node represent an unqualified field access in the case the method is called and the variableName is not defined as identification variable.
`java.lang.Class`	`resolveClass(GenerationContext generationContext)` resolveClass: Answer the class which corresponds to my variableName.
`void`	`setVariableName(java.lang.String newVariableName)`
`java.lang.String`	`toString(int indent)`
`void`	`validate(ParseTreeContext context)` INTERNAL Validate node and calculate its type.

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

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

Methods inherited from interface org.eclipse.persistence.internal.jpa.parsing.AliasableNode
getAlias, setAlias

- Constructor Detail
  - VariableNode
```
public VariableNode()
```
    VariableNode constructor comment.
  - VariableNode
```
public VariableNode(java.lang.String newVariableName)
```
- Method Detail
  - getVariableName
```
public java.lang.String getVariableName()
```
  - setVariableName
```
public void setVariableName(java.lang.String newVariableName)
```
  - getCanonicalVariableName
```
public java.lang.String getCanonicalVariableName()
```
  - isVariableNode
```
public boolean isVariableNode()
```
    INTERNAL Is this node a VariableNode
    
    Overrides:
    
    isVariableNode in class Node
  - applyToQuery
```
public void applyToQuery(ObjectLevelReadQuery theQuery,
                         GenerationContext generationContext)
```
    INTERNAL Apply this node to the passed query
    
    Overrides:
    
    applyToQuery in class Node
  - qualifyAttributeAccess
```
public Node qualifyAttributeAccess(ParseTreeContext context)
```
    INTERNAL This node represent an unqualified field access in the case the method is called and the variableName is not defined as identification variable. The method returns a DotNode representing a qualified field access with the base variable as left child node. The right child node is an AttributeNode using the variableName as field name.
    
    Overrides:
    
    qualifyAttributeAccess in class Node
  - validate
```
public void validate(ParseTreeContext context)
```
    INTERNAL Validate node and calculate its type.
    
    Overrides:
    
    validate in class Node
  - generateBaseBuilderExpression
```
public Expression generateBaseBuilderExpression(GenerationContext context)
```
  - generateExpression
```
public Expression generateExpression(GenerationContext generationContext)
```
    Description copied from class: Node
    
    INTERNAL Generate an expression for the node. Each subclass will generate a different expression and thus will need to override this method
    
    Overrides:
    
    generateExpression in class Node
  - generateExpressionForAlias
```
public Expression generateExpressionForAlias(GenerationContext context)
```
  - getNodeForAlias
```
public Node getNodeForAlias(GenerationContext context)
```
  - isAlias
```
public boolean isAlias(GenerationContext context)
```
    isAlias: Answer true if this variable represents an alias in the FROM clause. i.e. "FROM Employee emp" declares "emp" as an alias
  - isAlias
```
public boolean isAlias(ParseTreeContext context)
```
  - resolveClass
```
public java.lang.Class resolveClass(GenerationContext generationContext)
```
    resolveClass: Answer the class which corresponds to my variableName. This is the class for an alias, where the variableName is registered to an alias.
    
    Overrides:
    
    resolveClass in class Node
  - toString
```
public java.lang.String toString(int indent)
```
    Overrides:
    
    toString in class Node
  - getAsString
```
public java.lang.String getAsString()
```
    INTERNAL Get the string representation of this node.
    
    Overrides:
    
    getAsString in class Node
  - getTypeForMapKey
```
public java.lang.Object getTypeForMapKey(ParseTreeContext context)
```
  - isAliasableNode
```
public boolean isAliasableNode()
```
    Overrides:
    
    isAliasableNode in class Node

Class VariableNode

Field Summary

Fields inherited from class org.eclipse.persistence.internal.jpa.parsing.Node

Constructor Summary

Method Summary

Methods inherited from class org.eclipse.persistence.internal.jpa.parsing.Node

Methods inherited from class java.lang.Object

Methods inherited from interface org.eclipse.persistence.internal.jpa.parsing.AliasableNode

Constructor Detail

VariableNode

VariableNode

Method Detail

getVariableName

setVariableName

getCanonicalVariableName

isVariableNode

applyToQuery

qualifyAttributeAccess

validate

generateBaseBuilderExpression

generateExpression

generateExpressionForAlias

getNodeForAlias

isAlias

isAlias

resolveClass

toString

getAsString

getTypeForMapKey

isAliasableNode