1 package org.apache.maven.shared.dependency.graph; 2 3 /* 4 * Licensed to the Apache Software Foundation (ASF) under one 5 * or more contributor license agreements. See the NOTICE file 6 * distributed with this work for additional information 7 * regarding copyright ownership. The ASF licenses this file 8 * to you under the Apache License, Version 2.0 (the 9 * "License"); you may not use this file except in compliance 10 * with the License. You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, 15 * software distributed under the License is distributed on an 16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 17 * KIND, either express or implied. See the License for the 18 * specific language governing permissions and limitations 19 * under the License. 20 */ 21 22 import java.util.List; 23 24 import org.apache.maven.artifact.Artifact; 25 import org.apache.maven.shared.dependency.graph.traversal.DependencyNodeVisitor; 26 27 /** 28 * Represents an artifact node within a Maven project's dependency graph. 29 * 30 * @author Hervé Boutemy 31 * @since 2.0 32 */ 33 public interface DependencyNode 34 { 35 Artifact getArtifact(); 36 37 List<DependencyNode> getChildren(); 38 39 /** 40 * Applies the specified dependency node visitor to this dependency node and its children. 41 * 42 * @param visitor 43 * the dependency node visitor to use 44 * @return the visitor result of ending the visit to this node 45 * @since 1.1 46 */ 47 boolean accept( DependencyNodeVisitor visitor ); 48 49 /** 50 * Gets the parent dependency node of this dependency node. 51 * 52 * @return the parent dependency node 53 */ 54 DependencyNode getParent(); 55 56 /** 57 * Gets the version or version range for the dependency before dependency management was applied (if any). 58 * 59 * @return The dependency version before dependency management or {@code null} if the version was not managed. 60 */ 61 String getPremanagedVersion(); 62 63 /** 64 * Gets the scope for the dependency before dependency management was applied (if any). 65 * 66 * @return The dependency scope before dependency management or {@code null} if the scope was not managed. 67 */ 68 String getPremanagedScope(); 69 70 /** 71 * A constraint on versions for a dependency. A constraint can either consist of one or more version ranges or a 72 * single version. 73 * 74 * @return The constraint on the dependency. 75 */ 76 String getVersionConstraint(); 77 78 /** 79 * Returns a string representation of this dependency node. 80 * 81 * @return the string representation 82 */ 83 String toNodeString(); 84 }