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Posted to commits@commons.apache.org by si...@apache.org on 2011/06/16 16:12:03 UTC
svn commit: r1136446 - in
/commons/sandbox/graph/trunk/src/main/java/org/apache/commons/graph/spanning:
Boruvka.java Kruskal.java
Author: simonetripodi
Date: Thu Jun 16 14:12:03 2011
New Revision: 1136446
URL: http://svn.apache.org/viewvc?rev=1136446&view=rev
Log:
added Kruskal and Boruvka empty skeletons
Added:
commons/sandbox/graph/trunk/src/main/java/org/apache/commons/graph/spanning/Boruvka.java (with props)
commons/sandbox/graph/trunk/src/main/java/org/apache/commons/graph/spanning/Kruskal.java (with props)
Added: commons/sandbox/graph/trunk/src/main/java/org/apache/commons/graph/spanning/Boruvka.java
URL: http://svn.apache.org/viewvc/commons/sandbox/graph/trunk/src/main/java/org/apache/commons/graph/spanning/Boruvka.java?rev=1136446&view=auto
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--- commons/sandbox/graph/trunk/src/main/java/org/apache/commons/graph/spanning/Boruvka.java (added)
+++ commons/sandbox/graph/trunk/src/main/java/org/apache/commons/graph/spanning/Boruvka.java Thu Jun 16 14:12:03 2011
@@ -0,0 +1,47 @@
+package org.apache.commons.graph.spanning;
+
+/*
+ * 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.apache.commons.graph.Graph;
+import org.apache.commons.graph.Vertex;
+import org.apache.commons.graph.WeightedEdge;
+import org.apache.commons.graph.WeightedGraph;
+
+/**
+ * Boruvka's algorithm is an algorithm for finding a minimum spanning tree in a graph
+ * for which all edge weights are distinct.
+ */
+public final class Boruvka
+{
+
+ /**
+ * Calculates the minimum spanning tree (or forest) of the input Graph.
+ *
+ * @param <V> the Graph vertices type.
+ * @param <WE> the Graph weighted edges type.
+ * @param graph the Graph for which minimum spanning tree (or forest) has to be calculated.
+ * @return the minimum spanning tree (or forest) of the input Graph.
+ */
+ public static <V extends Vertex, WE extends WeightedEdge<V>> Graph<V, WE> minimumSpanningTree( WeightedGraph<V, WE> graph )
+ {
+ return null;
+ }
+
+}
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Added: commons/sandbox/graph/trunk/src/main/java/org/apache/commons/graph/spanning/Kruskal.java
URL: http://svn.apache.org/viewvc/commons/sandbox/graph/trunk/src/main/java/org/apache/commons/graph/spanning/Kruskal.java?rev=1136446&view=auto
==============================================================================
--- commons/sandbox/graph/trunk/src/main/java/org/apache/commons/graph/spanning/Kruskal.java (added)
+++ commons/sandbox/graph/trunk/src/main/java/org/apache/commons/graph/spanning/Kruskal.java Thu Jun 16 14:12:03 2011
@@ -0,0 +1,47 @@
+package org.apache.commons.graph.spanning;
+
+/*
+ * 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.apache.commons.graph.Graph;
+import org.apache.commons.graph.Vertex;
+import org.apache.commons.graph.WeightedEdge;
+import org.apache.commons.graph.WeightedGraph;
+
+/**
+ * Kruskal's algorithm is an algorithm in graph theory that finds a minimum spanning tree
+ * for a connected weighted graph.
+ */
+public final class Kruskal
+{
+
+ /**
+ * Calculates the minimum spanning tree (or forest) of the input Graph.
+ *
+ * @param <V> the Graph vertices type.
+ * @param <WE> the Graph weighted edges type.
+ * @param graph the Graph for which minimum spanning tree (or forest) has to be calculated.
+ * @return the minimum spanning tree (or forest) of the input Graph.
+ */
+ public static <V extends Vertex, WE extends WeightedEdge<V>> Graph<V, WE> minimumSpanningTree( WeightedGraph<V, WE> graph )
+ {
+ return null;
+ }
+
+}
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