| 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.RepositoryException; |
| import org.eclipse.aether.graph.DependencyNode; |
| |
| /** |
| * Transforms a given dependency graph. |
| * <p> |
| * <strong>Note:</strong> Implementations must be stateless. |
| * <p> |
| * <em>Warning:</em> Dependency graphs may generally contain cycles. As such a graph transformer that cannot assume for |
| * sure that cycles have already been eliminated must gracefully handle cyclic graphs, e.g. guard against infinite |
| * recursion. |
| * |
| * @see org.eclipse.aether.RepositorySystemSession#getDependencyGraphTransformer() |
| */ |
| public interface DependencyGraphTransformer |
| { |
| |
| /** |
| * Transforms the dependency graph denoted by the specified root node. The transformer may directly change the |
| * provided input graph or create a new graph, the former is recommended for performance reasons. |
| * |
| * @param node The root node of the (possibly cyclic!) graph to transform, must not be {@code null}. |
| * @param context The graph transformation context, must not be {@code null}. |
| * @return The result graph of the transformation, never {@code null}. |
| * @throws RepositoryException If the transformation failed. |
| */ |
| DependencyNode transformGraph( DependencyNode node, DependencyGraphTransformationContext context ) |
| throws RepositoryException; |
| |
| } |