/**
* Copyright 2012-2017 Gunnar Morling (http://www.gunnarmorling.de/)
* and/or other contributors as indicated by the @authors tag. See the
* copyright.txt file in the distribution for a full listing of all
* contributors.
*
* 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 org.mapstruct.ap.internal.util;
/**
* This is a helper interface until we migrate to Java 8. It allows us to abstract our code easier.
*
* @param <T> the type of the input to the function
* @param <R> the type of the result of the function
*
* @author Filip Hrisafov
*/
public interface Extractor<T, R> {
/**
* Extract a value from the passed parameter.
*
* @param t the value that we need to extract from
*
* @return the result from the extraction
*/
R apply(T t);
}