ItemController (Stateless Core 10.3.0.FL.202512171452 API)

All Known Implementing Classes:

IBiglistboxController, ICascaderController, IChosenboxController, IComboboxController, IGridController, ILinelayoutController, IListboxController, IOrganigramController, IRadiogroupController, ISearchboxController, ISelectboxController, IStepbarController, ITabboxController, ITreeController
```
public interface ItemController<DataT,ModelT,P extends IComponent,ItemT>
```
An interface for controlling model to build items, such as ListModel.

Author:

jumperchen

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`P`	`build()`	Returns the immutable instance that the controller to build with
`void`	`clear()`	Clears all the rendered data.
`ModelT`	`getModel()`	Returns the model, which is set through by `setModel(Object)`, or null.
`CheckedFunction2<DataT,java.lang.Integer,ItemT>`	`getRenderer()`	Returns the renderer, which is set through by `setRenderer(CheckedFunction2)`, or a default one which is depended on implementation.
`void`	`setModel(ModelT model)`	Sets the given model to this controller.
`void`	`setRenderer(CheckedFunction2<DataT,java.lang.Integer,ItemT> renderer)`	Sets the renderer which is used to render each data if `getModel()` is not null.

- Method Detail
  - setModel
```
void setModel(@Nullable
              ModelT model)
```
    Sets the given model to this controller.
    Note: calling this method after build(), you should invoke build() again to take effect to replace the current one at client.
    For example,
    
    uiAgent.replaceWith(locator, itemController.build());
    
    Default: null
  - getModel
```
@Nullable
ModelT getModel()
```
    Returns the model, which is set through by setModel(Object), or null.
  - setRenderer
```
void setRenderer(CheckedFunction2<DataT,java.lang.Integer,ItemT> renderer)
```
    Sets the renderer which is used to render each data if getModel() is not null.
    Note: calling this method after build(), you should invoke build() again to take effect to replace the current one at client.
    For example,
    
    uiAgent.replaceWith(locator, itemController.build());
    
    Default: null, or depended on the implementation
  - getRenderer
```
CheckedFunction2<DataT,java.lang.Integer,ItemT> getRenderer()
```
    Returns the renderer, which is set through by setRenderer(CheckedFunction2), or a default one which is depended on implementation.
  - build
```
P build()
```
    Returns the immutable instance that the controller to build with
  - clear
```
void clear()
```
    Clears all the rendered data.