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package eu.etaxonomy.vaadin.mvp;
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import java.util.logging.Logger;
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import com.vaadin.spring.annotation.SpringComponent;
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/**
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* AbstractPresenter is the base class of all presenter components. Presenter's
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* role is to govern the view and control the complex UI logic based on
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* notifications presenter receives from its view.
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*
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* @author Peter / Vaadin
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*
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* @param <V>
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* type of the view this presenter governs
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*/
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@SpringComponent
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public abstract class AbstractPresenter<V extends ApplicationView> {
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private V view;
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protected V getView() {
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return view;
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}
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/**
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* Notifies the presenter that its view is initialized so that presenter can
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* start its own initialization if required.
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*
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* @param view
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*/
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protected final void init(V view) {
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Logger.getLogger(getClass().getName()).info("Presenter init");
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this.view = view;
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onPresenterReady();
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}
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/**
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* Extending classes should overwrite this method in order to perform logic
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* after presenter has finished initializing.
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*/
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protected void onPresenterReady() {
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Logger.getLogger(getClass().getName()).info("Presenter ready");
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}
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/**
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* Extending classes should overwrite this method to react to the event when
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* user has navigated into the view that this presenter governs.
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*/
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public void onViewEnter() {
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Logger.getLogger(getClass().getName()).info("View entered");
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}
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public void onViewExit() {
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}
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}
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