/*
 * opsu!dance - fork of opsu! with cursordance auto
 * Copyright (C) 2017 yugecin
 *
 * opsu!dance is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * opsu!dance is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with opsu!dance.  If not, see <http://www.gnu.org/licenses/>.
 */
package yugecin.opsudance.utils;

public class CachedVariable<T> {

	private T value;
	private Getter<T> getter;

	public CachedVariable(Getter<T> getter) {
		this.getter = getter;
	}

	public T get() {
		if (getter != null) {
			value = getter.get();
			getter = null;
		}
		return value;
	}

	public interface Getter<T> {
		T get();
	}

}