package com.onaro.sanscreen.client.view.task.actions.util;

import java.util.EventListener;

import com.onaro.util.ListenerList;

public interface FieldChangedListener extends EventListener {

    public void fieldChanged(FieldChangedEvent event);

    /**
     * Register an event firer with the {@link com.onaro.util.ListenerList} utility for this listener.
     */
    final static FireEvent firer = new FireEvent();
}

/**
 * Used for sending event to {@link FieldChangedListener}s by the {@link com.onaro.util.ListenerList}
 * utility.
 */
class FireEvent implements ListenerList.FireEvent<FieldChangedListener, FieldChangedEvent> {
    FireEvent() {
        ListenerList.addFireEvent(FieldChangedListener.class, this);
    }

    public void fire(FieldChangedListener listener, FieldChangedEvent event) {
        listener.fieldChanged(event);
    }
}