package org.jtheque.views.impl.models;
/*
* Copyright JTheque (Baptiste Wicht)
*
* 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.
*/
import org.jtheque.messages.Message;
import org.jtheque.ui.Model;
/**
* A simple model for the messages.
*
* @author Baptiste Wicht
*/
public interface IMessageModel extends Model {
/**
* Return the next message to display.
*
* @return The next message to display.
*/
Message getNextMessage();
/**
* Return the current message.
*
* @return The current message.
*/
Message getCurrentMessage();
/**
* Return the previous message.
*
* @return The previous message.
*/
Message getPreviousMessage();
/**
* Indicate if the model has a next element or not.
*
* @return {@code true} if the model has a next element otherwise {@code false}.
*/
boolean hasNext();
/**
* Indicate if the model has a previous element or not.
*
* @return {@code true} if the model has a previous element otherwise {@code false}.
*/
boolean hasPrevious();
}