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

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com.vaadin.flow.internal.change.

java.lang.Object
- com.vaadin.flow.internal.change.NodeChange
- - com.vaadin.flow.internal.change.NodeFeatureChange
  - - com.vaadin.flow.internal.change.AbstractListChange<T>

Type Parameters:

T - the type of the items in the node list

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

ListAddChange, ListClearChange, ListRemoveChange
```
public abstract class AbstractListChange<T extends Serializable>
extends NodeFeatureChange
```
Change describing an operation (add/remove) in a list node feature.
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
Modifier Constructor Description

protected AbstractListChange(NodeList<T> list, int index)
Creates a new list change.

Method Summary

All Methods
Modifier and Type	Method	Description
`abstract AbstractListChange<T>`	`copy(int index)`	Gets a copy of the change with the same data except `index`.
`int`	`getIndex()`	Gets the index of the change.
`protected NodeList<T>`	`getNodeList()`	Gets a changed list.
`void`	`setIndex(int index)`	Sets the index of this change in the change list.

Methods inherited from class com.vaadin.flow.internal.change.NodeFeatureChange
getFeature, populateJson

Methods inherited from class com.vaadin.flow.internal.change.NodeChange
getNode, toJson

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

- Constructor Detail
  - AbstractListChange
```
protected AbstractListChange(NodeList<T> list,
                             int index)
```
    Creates a new list change.
    
    Parameters:
    
    list - the changed list
    
    index - the index of the add operations
- Method Detail
  - getIndex
```
public int getIndex()
```
    Gets the index of the change.
    
    Returns:
    
    the index
  - getNodeList
```
protected NodeList<T> getNodeList()
```
    Gets a changed list.
    
    Returns:
    
    the changed list
  - copy
```
public abstract AbstractListChange<T> copy(int index)
```
    Gets a copy of the change with the same data except index.
    
    Parameters:
    
    index - the new index of the change
    
    Returns:
    
    a copy of the change based on new index
  - setIndex
```
public void setIndex(int index)
```
    Sets the index of this change in the change list.
    Note: This should be used only when list of changes is being re-indexed after adding a new change.
    
    Parameters:
    
    index - Integer value.