WhenThenNode

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

```
public class WhenThenNode
extends Node
```
INTERNAL
Purpose: Represent an WHEN x THEN y (part of CASE statement) in EJBQL
Responsibilities:
- Generate the correct expression for an WHEN THEN in EJBQL
Since:

EclipseLink 1.2

Author:

tware

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

Constructor Summary

Constructors
Constructor Description

WhenThenNode()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Expression`	`generateExpressionForThen(GenerationContext context)`	INTERNAL Generate the a new EclipseLink the THEN portion of this node.
`Expression`	`generateExpressionForWhen(GenerationContext context)`	INTERNAL Generate the a new EclipseLink Expression for this WHEN portion of this node.
`void`	`validate(ParseTreeContext context)`	INTERNAL Validate node and calculate its type.

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, qualifyAttributeAccess, 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
  - WhenThenNode
```
public WhenThenNode()
```
- Method Detail
  - generateExpressionForWhen
```
public Expression generateExpressionForWhen(GenerationContext context)
```
    INTERNAL Generate the a new EclipseLink Expression for this WHEN portion of this node.
  - generateExpressionForThen
```
public Expression generateExpressionForThen(GenerationContext context)
```
    INTERNAL Generate the a new EclipseLink the THEN portion of this node.
  - validate
```
public void validate(ParseTreeContext context)
```
    Description copied from class: Node
    
    INTERNAL Validate node and calculate its type.
    
    Overrides:
    
    validate in class Node