TreeNode (yangtools-docs 7.0.4 API)

All Superinterfaces:

Identifiable<YangInstanceIdentifier.PathArgument>, StoreTreeNode<TreeNode>
```
@NonNullByDefault
public interface TreeNode
extends Identifiable<YangInstanceIdentifier.PathArgument>, StoreTreeNode<TreeNode>
```
A very basic data tree node. It has a version (when it was last modified), a subtree version (when any of its children were modified) and some read-only data.
Semantic difference between these two is important when dealing with modifications involving parent/child relationships and what operations can be execute concurrently without creating a data dependency conflict.
A replace/delete operation cannot be applied to this node if the subtree version does not match. This mismatch still allows modifications to its descendants.
A mismatch in node version indicates a replacement, preventing a modification of descendants or itself.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`NormalizedNode`	`getData()`	Get a read-only view of the underlying data.
`Version`	`getSubtreeVersion()`	Get the subtree version.
`Version`	`getVersion()`	Get the data node version.
`MutableTreeNode`	`mutable()`	Get a mutable, isolated copy of the node.

Methods inherited from interface org.opendaylight.yangtools.concepts.Identifiable
getIdentifier

Methods inherited from interface org.opendaylight.yangtools.yang.data.api.schema.tree.StoreTreeNode
childByArg, findChildByArg, getChildByArg

- Method Detail
  - getVersion
```
Version getVersion()
```
    Get the data node version. This version is updated whenever the data representation of this particular node changes as a result of a direct write to this node or to its parent nodes -- thus indicating that this node was logically replaced.
    
    Returns:
    
    Current data node version.
  - getSubtreeVersion
```
Version getSubtreeVersion()
```
    Get the subtree version. This version is updated whenever the data representation of this particular node changes as the result of a direct or indirect child node being created, replaced or removed.
    
    Returns:
    
    Current subtree version.
  - getData
```
NormalizedNode getData()
```
    Get a read-only view of the underlying data.
    
    Returns:
    
    Unmodifiable view of the underlying data.
  - mutable
```
MutableTreeNode mutable()
```
    Get a mutable, isolated copy of the node.
    
    Returns:
    
    Mutable copy