Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/933#discussion_r13271716
--- Diff:
graphx/src/main/scala/org/apache/spark/graphx/lib/ShortestPaths.scala ---
@@ -0,0 +1,72 @@
+/*
+ * 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.
+ */
+
+package org.apache.spark.graphx.lib
+
+import org.apache.spark.graphx._
+import scala.reflect.ClassTag
+
+/**
+ * Computes shortest paths to the given set of landmark vertices,
returning a graph where each
+ * vertex attribute is a map containing the shortest-path distance to each
reachable landmark.
+ */
+object ShortestPaths {
+ /** Stores a map from the vertex id of a landmark to the distance to
that landmark. */
+ type SPMap = Map[VertexId, Int]
+
+ def SPMap(x: (VertexId, Int)*) = Map(x: _*)
--- End diff --
Can we remove this one? It technically violates our coding style to have a
function start with upper case, and confusing to have it the same name as the
type itself.
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