001package org.eclipse.aether.graph; 002 003/* 004 * Licensed to the Apache Software Foundation (ASF) under one 005 * or more contributor license agreements. See the NOTICE file 006 * distributed with this work for additional information 007 * regarding copyright ownership. The ASF licenses this file 008 * to you under the Apache License, Version 2.0 (the 009 * "License"); you may not use this file except in compliance 010 * with the License. You may obtain a copy of the License at 011 * 012 * http://www.apache.org/licenses/LICENSE-2.0 013 * 014 * Unless required by applicable law or agreed to in writing, 015 * software distributed under the License is distributed on an 016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 017 * KIND, either express or implied. See the License for the 018 * specific language governing permissions and limitations 019 * under the License. 020 */ 021 022import java.util.List; 023 024/** 025 * A filter to include/exclude dependency nodes during other operations. 026 */ 027public interface DependencyFilter 028{ 029 030 /** 031 * Indicates whether the specified dependency node shall be included or excluded. 032 * 033 * @param node The dependency node to filter, must not be {@code null}. 034 * @param parents The (read-only) chain of parent nodes that leads to the node to be filtered, must not be 035 * {@code null}. Iterating this (possibly empty) list walks up the dependency graph towards the root 036 * node, i.e. the immediate parent node (if any) is the first node in the list. The size of the list also 037 * denotes the zero-based depth of the filtered node. 038 * @return {@code true} to include the dependency node, {@code false} to exclude it. 039 */ 040 boolean accept( DependencyNode node, List<DependencyNode> parents ); 041 042}