/*
* Copyright 2015 Google Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.samples.apps.iosched.archframework;
/**
* A Presenter acts as a controller for both the {@link UpdatableView} (typically a fragment) and
* the {@link Model} for the MVP architectural pattern.
* <p/>
* It is parametrised by the {@link QueryEnum} (the list of queries it is able to pass on to the
* Model) and the {@link UserActionEnum} (the list of user actions it is able to pass on to the
* Model).
* <p/>
* Typically, upon being created, a Presenter requests the Model to load the initial data, then
* update the View accordingly.
* <p/>
* The implementation of a Presenter listens to events generated by the {@link UpdatableView} (by
* implementing {@link com.google.samples.apps.iosched.archframework.UpdatableView
* .UserActionListener}, and passes them on to the {@link Model}, which modifies its data as
* required. The Presenter also listens to events generated by the {@link Model} (by using {@link
* com.google.samples.apps.iosched .archframework.Model.DataQueryCallback} and {@link
* com.google.samples.apps.iosched .archframework.Model.UserActionCallback} and then asks the {@link
* UpdatableView} to update itself.
*/
public interface Presenter<Q extends QueryEnum, UA extends UserActionEnum> {
/**
* Requests the model to load the initial data.
*/
public void loadInitialQueries();
}