com.vaadin.flow.internal.change.NodeChange API 23.1.17 | Vaadin

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com.vaadin.flow.internal.change.

java.lang.Object
- com.vaadin.flow.internal.change.NodeChange

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

NodeAttachChange, NodeDetachChange, NodeFeatureChange
```
public abstract class NodeChange
extends Object
implements Serializable
```
Base class describing a change to a state node.
For internal use only. May be renamed or removed in a future release.

Since:

1.0

Author:

Vaadin Ltd

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

NodeChange(StateNode node)
Creates a new change for the given node.

Method Summary

All Methods
Modifier and Type	Method	Description
`StateNode`	`getNode()`	Gets the changed node.
`protected abstract void`	`populateJson(elemental.json.JsonObject json, ConstantPool constantPool)`	Overridden by subclasses to populate a JSON object when serializing.
`elemental.json.JsonObject`	`toJson(ConstantPool constantPool)`	Serializes this change to JSON.

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

- Constructor Detail
  - NodeChange
```
public NodeChange(StateNode node)
```
    Creates a new change for the given node.
    
    Parameters:
    
    node - the changed node
- Method Detail
  - getNode
```
public StateNode getNode()
```
    Gets the changed node.
    
    Returns:
    
    the node
  - toJson
```
public elemental.json.JsonObject toJson(ConstantPool constantPool)
```
    Serializes this change to JSON.
    
    Parameters:
    
    constantPool - the constant pool to use for serializing constant pool references
    
    Returns:
    
    a json representation of this change
  - populateJson
```
protected abstract void populateJson(elemental.json.JsonObject json,
                                     ConstantPool constantPool)
```
    Overridden by subclasses to populate a JSON object when serializing.
    
    Parameters:
    
    json - the json object to populate
    
    constantPool - the constant pool to use for serializing constant pool references