/*
* Copyright 2002-2016 the original author or authors.
*
* 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.springframework.integration.file.filters;
import java.util.List;
/**
* Strategy interface for filtering a group of files. This is a generic filter intended
* to work with either local files or references to remote files.
*
* @author Iwein Fuld
* @author Josh Long
*
* @since 1.0.0
*/
@FunctionalInterface
public interface FileListFilter<F> {
/**
* Filters out files and returns the files that are left in a list, or an
* empty list when a null is passed in.
* @param files The files.
* @return The filtered files.
*/
List<F> filterFiles(F[] files);
}