Coverage Report - org.apache.maven.archiva.dependency.graph.walk.DependencyGraphWalker
 
Classes in this File Line Coverage Branch Coverage Complexity
DependencyGraphWalker
N/A
N/A
1
 
 1  
 package org.apache.maven.archiva.dependency.graph.walk;
 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 org.apache.commons.collections.Predicate;
 23  
 import org.apache.maven.archiva.dependency.graph.DependencyGraph;
 24  
 import org.apache.maven.archiva.dependency.graph.DependencyGraphNode;
 25  
 import org.apache.maven.archiva.model.ArtifactReference;
 26  
 
 27  
 /**
 28  
  * Walk nodes of the {@link DependencyGraph}. 
 29  
  *
 30  
  * @version $Id: DependencyGraphWalker.java 718864 2008-11-19 06:33:35Z brett $
 31  
  */
 32  
 public interface DependencyGraphWalker
 33  
 {
 34  
     /**
 35  
      * A {@link #getNodeVisitState(ArtifactReference)} for a node not yet seen in the walker.
 36  
      */
 37  
     public static final Integer UNSEEN = new Integer( 0 );
 38  
 
 39  
     /**
 40  
      * A {@link #getNodeVisitState(ArtifactReference)} for a node that is actively being processed, 
 41  
      * but not yet finished processing.
 42  
      */
 43  
     public static final Integer PROCESSING = new Integer( 1 );
 44  
 
 45  
     /**
 46  
      * A {@link #getNodeVisitState(ArtifactReference)} for a node that has been seen, and fully processed.
 47  
      */
 48  
     public static final Integer SEEN = new Integer( 2 );
 49  
 
 50  
     /**
 51  
      * For a provided node, get the current node visit state.
 52  
      *  
 53  
      * @param node the node that you are interested in.
 54  
      * @return the state of that node. (Can be {@link #UNSEEN}, {@link #PROCESSING}, or {@link #SEEN} )
 55  
      */
 56  
     public Integer getNodeVisitState( ArtifactReference artifact );
 57  
 
 58  
     /**
 59  
      * Get the predicate used to determine if the walker should traverse an edge (or not).
 60  
      * 
 61  
      * @return the Predicate that returns true for edges that should be traversed.
 62  
      */
 63  
     public Predicate getEdgePredicate();
 64  
 
 65  
     /**
 66  
      * Set the predicate used for edge traversal
 67  
      * 
 68  
      * @param edgePredicate the Predicate that returns true for edges that should be traversed.
 69  
      */
 70  
     public void setEdgePredicate( Predicate edgePredicate );
 71  
 
 72  
     /**
 73  
      * Visit every node and edge in the graph from the startNode.
 74  
      * 
 75  
      * @param graph the graph to visit.
 76  
      * @param startNode the node to start the visit on.
 77  
      * @param visitor the visitor object to use during this visit. 
 78  
      */
 79  
     public void visit( DependencyGraph graph, DependencyGraphNode startNode, DependencyGraphVisitor visitor );
 80  
 
 81  
     /**
 82  
      * Visit every node and edge in the entire graph.
 83  
      * 
 84  
      * @param graph the graph to visit.
 85  
      * @param visitor the visitor object to use during this visit. 
 86  
      */
 87  
     public void visit( DependencyGraph graph, DependencyGraphVisitor visitor );
 88  
 }