ParameterNode

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

```
public class ParameterNode
extends Node
```
INTERNAL
Purpose: This node represnts a Parameter (?1) in an EJBQL
Responsibilities:
- Generate the correct expression for an AND in EJBQL
- Maintain a
Since:

TopLink 4.0

Author:

Jon Driscoll and Joel Lucuik

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

Constructor Summary

Constructors
Constructor	Description
`ParameterNode()`	Return a new ParameterNode.
`ParameterNode(java.lang.String newParameterName)`	INTERNAL Create a new ParameterNode with the passed string.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Expression`	`generateExpression(GenerationContext context)`	Generate the result expression, must use the base builder to avoid getting multiple builders.
`java.lang.String`	`getAsString()`	INTERNAL Return the parameterName
`java.lang.String`	`getParameterName()`	INTERNAL Return the parameter name
`boolean`	`isParameterNode()`	INTERNAL Yes this is a Parameter node
`void`	`setParameterName(java.lang.String name)`
`void`	`validateParameter(ParseTreeContext context, java.lang.Object contextType)`	INTERNAL

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

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

- Constructor Detail
  - ParameterNode
```
public ParameterNode()
```
    Return a new ParameterNode.
  - ParameterNode
```
public ParameterNode(java.lang.String newParameterName)
```
    INTERNAL Create a new ParameterNode with the passed string.
    
    Parameters:
    
    newVariableName - java.lang.String
- Method Detail
  - validateParameter
```
public void validateParameter(ParseTreeContext context,
                              java.lang.Object contextType)
```
    INTERNAL
    
    Overrides:
    
    validateParameter in class Node
  - generateExpression
```
public Expression generateExpression(GenerationContext context)
```
    Generate the result expression, must use the base builder to avoid getting multiple builders.
    
    Overrides:
    
    generateExpression in class Node
  - getAsString
```
public java.lang.String getAsString()
```
    INTERNAL Return the parameterName
    
    Overrides:
    
    getAsString in class Node
  - getParameterName
```
public java.lang.String getParameterName()
```
    INTERNAL Return the parameter name
  - setParameterName
```
public void setParameterName(java.lang.String name)
```
  - isParameterNode
```
public boolean isParameterNode()
```
    INTERNAL Yes this is a Parameter node
    
    Overrides:
    
    isParameterNode in class Node