| package org.eclipse.aether.collection; |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| import org.eclipse.aether.graph.Dependency; |
| |
| /** |
| * Decides what dependencies to include in the dependency graph. |
| * <p> |
| * <strong>Note:</strong> Implementations must be stateless. |
| * <p> |
| * <em>Warning:</em> This hook is called from a hot spot and therefore implementations should pay attention to |
| * performance. Among others, implementations should provide a semantic {@link Object#equals(Object) equals()} method. |
| * |
| * @see org.eclipse.aether.RepositorySystemSession#getDependencySelector() |
| * @see org.eclipse.aether.RepositorySystem#collectDependencies(org.eclipse.aether.RepositorySystemSession, |
| * CollectRequest) |
| */ |
| public interface DependencySelector |
| { |
| |
| /** |
| * Decides whether the specified dependency should be included in the dependency graph. |
| * |
| * @param dependency The dependency to check, must not be {@code null}. |
| * @return {@code false} if the dependency should be excluded from the children of the current node, {@code true} |
| * otherwise. |
| */ |
| boolean selectDependency( Dependency dependency ); |
| |
| /** |
| * Derives a dependency selector for the specified collection context. When calculating the child selector, |
| * implementors are strongly advised to simply return the current instance if nothing changed to help save memory. |
| * |
| * @param context The dependency collection context, must not be {@code null}. |
| * @return The dependency selector for the target node or {@code null} if dependencies should be unconditionally |
| * included in the sub graph. |
| */ |
| DependencySelector deriveChildSelector( DependencyCollectionContext context ); |
| |
| } |