EmptyNode (cayenne-doc: Cayenne Documentation 4.2 API)

java.lang.Object
- org.apache.cayenne.access.sqlbuilder.sqltree.Node
- - org.apache.cayenne.access.sqlbuilder.sqltree.EmptyNode

```
public class EmptyNode
extends Node
```
Since:

4.2

- Field Summary
  - Fields inherited from class org.apache.cayenne.access.sqlbuilder.sqltree.Node
    children, childrenCount, parent, type
- Constructor Summary
  
  Constructors
  Constructor Description
  
  EmptyNode()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  QuotingAppendable append(QuotingAppendable buffer)
  
  Node copy()
  
  String toString()
  - Methods inherited from class org.apache.cayenne.access.sqlbuilder.sqltree.Node
    addChild, addChild, appendChildrenEnd, appendChildrenSeparator, appendChildrenStart, deepCopy, getChild, getChildrenCount, getParent, getType, replaceChild, setParent, visit
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - EmptyNode
```
public EmptyNode()
```
- Method Detail
  - append
```
public QuotingAppendable append(QuotingAppendable buffer)
```
    Specified by:
    
    append in class Node
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Node
  - copy
```
public Node copy()
```
    Specified by:
    
    copy in class Node