de.mrapp.android.util.multithreading

Interface AbstractDataBinder.Listener<DataType,KeyType,ViewType,ParamType>

Type Parameters:

DataType - The type of the data, which is bound to views

KeyType - The type of the keys, which allow to uniquely identify already loaded data

ViewType - The type of the views, which are used to display data

ParamType - The type of parameters, which can be passed when loading data

Enclosing class:

AbstractDataBinder<DataType,KeyType,ViewType,ParamType>

public static interface AbstractDataBinder.Listener<DataType,KeyType,ViewType,ParamType>

Defines the interface, a class, which should be notified about the progress of a AbstractDataBinder must implement.

Method Summary

Modifier and Type	Method and Description
void	onCanceled(AbstractDataBinder<DataType,KeyType,ViewType,ParamType> dataBinder) The method, which is invoked, when the data binder has been canceled.
void	onFinished(AbstractDataBinder<DataType,KeyType,ViewType,ParamType> dataBinder, KeyType key, DataType data, ViewType view, ParamType... params) The method, which is invoked, when the data binder shows data, which has been loaded either asynchronously or from cache.
boolean	onLoadData(AbstractDataBinder<DataType,KeyType,ViewType,ParamType> dataBinder, KeyType key, ParamType... params) The method, which is invoked, when the data binder starts to load data asynchronously.

Method Detail

onLoadData

boolean onLoadData(AbstractDataBinder<DataType,KeyType,ViewType,ParamType> dataBinder,
                   KeyType key,
                   ParamType... params)

The method, which is invoked, when the data binder starts to load data asynchronously.

Parameters:

dataBinder - The observed data binder as an instance of the class AbstractDataBinder. The data binder may not be null

key - The key of the data, which should be loaded, as an instance of the generic type KeyType. The key may not be null

params - An array, which contains optional parameters, as an array of the type ParamType or an empty array, if no parameters should be used

Returns:

True, if the loading the data should be proceeded, false otherwise. When returning false, the method gets invoked repeatedly until true is returned.

onFinished

void onFinished(AbstractDataBinder<DataType,KeyType,ViewType,ParamType> dataBinder,
                KeyType key,
                DataType data,
                ViewType view,
                ParamType... params)

The method, which is invoked, when the data binder shows data, which has been loaded either asynchronously or from cache.

Parameters:

dataBinder - The observed data binder as an instance of the class AbstractDataBinder. The data binder may not be null

key - The key of the data, which has be loaded, as an instance of the generic type KeyType. The key may not be null

data - The data, which has been loaded, as an instance of the generic type DataType or null, if no data has been loaded

view - The view, which is used to display the data, as an instance of the generic type ViewType. The view may not be null

params - An array, which contains optional parameters, as an array of the type ParamType or an empty array, if no parameters should be used

onCanceled

void onCanceled(AbstractDataBinder<DataType,KeyType,ViewType,ParamType> dataBinder)

The method, which is invoked, when the data binder has been canceled.

Parameters:

dataBinder - The observed data binder as an instance of the class AbstractDataBinder. The data binder may not be null