ConcatNode

java.lang.Object
- org.eclipse.persistence.internal.jpa.parsing.Node
- - org.eclipse.persistence.internal.jpa.parsing.FunctionalExpressionNode
  - - org.eclipse.persistence.internal.jpa.parsing.StringFunctionNode
    - - org.eclipse.persistence.internal.jpa.parsing.ConcatNode

All Implemented Interfaces:

AliasableNode
```
public class ConcatNode
extends StringFunctionNode
```
INTERNAL
Purpose: Represent a CONCAT in EJBQL
Responsibilities:
- Generate the correct expression for a CONCAT in EJBQL
Since:

TopLink 4.0

Author:

Jon Driscoll and Joel Lucuik

Field Summary

Fields
Modifier and Type Field Description

protected java.util.List objects
- Fields inherited from class org.eclipse.persistence.internal.jpa.parsing.Node
  alias, left, right, shouldGenerateExpression

Constructor Summary

Constructors
Constructor Description

ConcatNode()
ConcatNode constructor comment.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Expression`	`generateExpression(GenerationContext context)`	INTERNAL Generate the EclipseLink expression for this node
`void`	`setObjects(java.util.List objects)`
`void`	`validate(ParseTreeContext context)`	INTERNAL Validate node and calculate its type.

Methods inherited from class org.eclipse.persistence.internal.jpa.parsing.FunctionalExpressionNode
applyToQuery, isAliasableNode

Methods inherited from class org.eclipse.persistence.internal.jpa.parsing.Node
addToExpression, appendExpression, getAlias, getAsString, getColumn, getLeft, getLine, getRight, getType, hasLeft, hasRight, isAggregateNode, 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

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

- Field Detail
  - objects
```
protected java.util.List objects
```
- Constructor Detail
  - ConcatNode
```
public ConcatNode()
```
    ConcatNode constructor comment.
- Method Detail
  - validate
```
public void validate(ParseTreeContext context)
```
    INTERNAL Validate node and calculate its type.
    
    Overrides:
    
    validate in class Node
  - generateExpression
```
public Expression generateExpression(GenerationContext context)
```
    INTERNAL Generate the EclipseLink expression for this node
    
    Overrides:
    
    generateExpression in class Node
  - setObjects
```
public void setObjects(java.util.List objects)
```