X-Git-Url: http://git.argeo.org/?a=blobdiff_plain;f=org.argeo.slc.repo%2Fsrc%2Forg%2Feclipse%2Faether%2Fgraph%2FDependencyVisitor.java;fp=org.argeo.slc.repo%2Fsrc%2Forg%2Feclipse%2Faether%2Fgraph%2FDependencyVisitor.java;h=d4ba2135b6fca6d11fbe467fc82785e72ba46de7;hb=825d60c5348dbe3f5be25b0bccf7bdebfe694219;hp=0000000000000000000000000000000000000000;hpb=5e991fff5cba01858dcc5747a27e637325bc5c8e;p=gpl%2Fargeo-jcr.git

diff --git a/org.argeo.slc.repo/src/org/eclipse/aether/graph/DependencyVisitor.java b/org.argeo.slc.repo/src/org/eclipse/aether/graph/DependencyVisitor.java
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index 0000000..d4ba213
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+++ b/org.argeo.slc.repo/src/org/eclipse/aether/graph/DependencyVisitor.java
@@ -0,0 +1,38 @@
+/*******************************************************************************
+ * Copyright (c) 2010, 2011 Sonatype, Inc.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Sonatype, Inc. - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.aether.graph;
+
+/**
+ * A visitor for nodes of the dependency graph.
+ * 
+ * @see DependencyNode#accept(DependencyVisitor)
+ */
+public interface DependencyVisitor
+{
+
+    /**
+     * Notifies the visitor of a node visit before its children have been processed.
+     * 
+     * @param node The dependency node being visited, must not be {@code null}.
+     * @return {@code true} to visit child nodes of the specified node as well, {@code false} to skip children.
+     */
+    boolean visitEnter( DependencyNode node );
+
+    /**
+     * Notifies the visitor of a node visit after its children have been processed. Note that this method is always
+     * invoked regardless whether any children have actually been visited.
+     * 
+     * @param node The dependency node being visited, must not be {@code null}.
+     * @return {@code true} to visit siblings nodes of the specified node as well, {@code false} to skip siblings.
+     */
+    boolean visitLeave( DependencyNode node );
+
+}