Package com.vaadin.flow.internal.change

Class NodeChange

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

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.
com.fasterxml.jackson.databind.node.ObjectNode	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 Details

NodeChange

public NodeChange(StateNode node)

Creates a new change for the given node.

Parameters:

node - the changed node

Method Details

getNode

public StateNode getNode()

Gets the changed node.

Returns:

the node

toJson

public com.fasterxml.jackson.databind.node.ObjectNode 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