001    package org.apache.maven.project;
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    
022    import java.util.List;
023    
024    import org.eclipse.aether.graph.Dependency;
025    import org.eclipse.aether.graph.DependencyNode;
026    
027    /**
028     * The result of a project dependency resolution.
029     * 
030     * @author Benjamin Bentmann
031     */
032    public interface DependencyResolutionResult
033    {
034    
035        /**
036         * Gets the dependency graph of the project.
037         * 
038         * @return The dependency graph or {@code null} if not available.
039         */
040        DependencyNode getDependencyGraph();
041    
042        /**
043         * Gets the transitive dependencies of the project that were not excluded by
044         * {@link DependencyResolutionRequest#getResolutionFilter()}. This list is a union of the results from
045         * {@link #getResolvedDependencies()} and {@link #getUnresolvedDependencies()}.
046         * 
047         * @return The transitive dependencies, never {@code null}.
048         */
049        List<Dependency> getDependencies();
050    
051        /**
052         * Gets the dependencies that were successfully resolved.
053         * 
054         * @return The resolved dependencies, never {@code null}.
055         */
056        List<Dependency> getResolvedDependencies();
057    
058        /**
059         * Gets the dependencies that could not be resolved.
060         * 
061         * @return The unresolved dependencies, never {@code null}.
062         */
063        List<Dependency> getUnresolvedDependencies();
064    
065        /**
066         * Gets the errors that occurred while building the dependency graph.
067         * 
068         * @return The errors that occurred while building the dependency graph, never {@code null}.
069         */
070        List<Exception> getCollectionErrors();
071    
072        /**
073         * Gets the errors that occurred while resolving the specified dependency.
074         * 
075         * @param dependency The dependency for which to retrieve the errors, must not be {@code null}.
076         * @return The resolution errors for the specified dependency, never {@code null}.
077         */
078        List<Exception> getResolutionErrors( Dependency dependency );
079    
080    }