CollectionController (SuperFields 0.17.0 API)

All Superinterfaces:

Serializable

All Known Implementing Classes:

CollectionField
```
public interface CollectionController
extends Serializable
```
Marker interface for all components that can control a collection. Note: this is not generic in any way to allow reusing one controller among many components.

Since:

2021-08-14

Author:

miki

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`default void`	`add()`	Adds a new component at the end of current list.
`void`	`add(int atIndex)`	Adds a new component at a specified position, moving subsequent elements by one.
`default boolean`	`isEmpty()`	Checks if the collection is empty.
`default void`	`remove()`	Removes the last component.
`void`	`remove(int atIndex)`	Removes a component at given index.
`void`	`removeAll()`	Clears the collection and removes all elements from it.
`int`	`size()`	Returns the current size of the collection.

- Method Detail
  - size
```
int size()
```
    Returns the current size of the collection.
    
    Returns:
    
    A non-negative number.
  - isEmpty
```
default boolean isEmpty()
```
    Checks if the collection is empty.
    
    Returns:
    
    true if size() returns 0, false otherwise.
  - removeAll
```
void removeAll()
```
    Clears the collection and removes all elements from it.
  - add
```
void add(int atIndex)
```
    Adds a new component at a specified position, moving subsequent elements by one.
    
    Parameters:
    
    atIndex - Index to add at.
  - add
```
default void add()
```
    Adds a new component at the end of current list. By default, it has the same effect as calling add(int) with size() as parameter.
  - remove
```
void remove(int atIndex)
```
    Removes a component at given index. All subsequent components are moved forward by one.
    
    Parameters:
    
    atIndex - Index to remove component at.
  - remove
```
default void remove()
```
    Removes the last component. By default, it has the same effect as calling remove(int) with size()- 1 as parameter.