/*
 * Copyright 2006 Takahiro Nakamura.
 *
 * 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 woolpack.bool;

import woolpack.fn.Delegator;
import woolpack.fn.Fn;

/**
 * 委譲先の結果の否定する{@link Fn}です。
 * @author nakamura
 *
 * @param <C>
 * @param <E>
 */
public class NotDelegator<C, E extends Exception> extends Delegator<C, Boolean, E> {

	public NotDelegator(final Fn<? super C, Boolean, ? extends E> fn) {
		super(fn);
	}
	
	@Override
	public Boolean exec(final C c) throws E {
		return !super.exec(c);
	}
}
