From c732b309a14696f60100440871c90789d443ad24 Mon Sep 17 00:00:00 2001
From: bculkin2442 <bjculkin@mix.wvu.edu>
Date: Mon, 29 Feb 2016 09:01:16 -0500
Subject: Changed interface of GenHolder

GenHolder now has a proper interface with no public fields
---
 .../main/java/bjc/utils/graph/AdjacencyMap.java    |  9 +++++----
 .../src/main/java/bjc/utils/graph/Graph.java       | 22 ++++++++++++----------
 2 files changed, 17 insertions(+), 14 deletions(-)

(limited to 'BJC-Utils2/src/main/java/bjc/utils/graph')

diff --git a/BJC-Utils2/src/main/java/bjc/utils/graph/AdjacencyMap.java b/BJC-Utils2/src/main/java/bjc/utils/graph/AdjacencyMap.java
index 3b6d6ef..d3a420e 100644
--- a/BJC-Utils2/src/main/java/bjc/utils/graph/AdjacencyMap.java
+++ b/BJC-Utils2/src/main/java/bjc/utils/graph/AdjacencyMap.java
@@ -48,12 +48,13 @@ public class AdjacencyMap<T> {
 			int col = 0;
 
 			for (String part : parts) {
-				aMap.setWeight(row.held, col, Integer.parseInt(part));
+				aMap.setWeight(row.unwrap(vl -> vl), col,
+						Integer.parseInt(part));
 
 				col++;
 			}
 
-			row.held++;
+			row.transform((vl) -> vl + 1);
 		});
 
 		scn.close();
@@ -96,11 +97,11 @@ public class AdjacencyMap<T> {
 					int rhs = adjMap.get(tgt.getKey()).get(src.getKey());
 
 					if (lhs != rhs) {
-						res.held = false;
+						res.transform((vl) -> false);
 					}
 				}));
 
-		return res.held;
+		return res.unwrap(vl -> vl);
 	}
 
 	/**
diff --git a/BJC-Utils2/src/main/java/bjc/utils/graph/Graph.java b/BJC-Utils2/src/main/java/bjc/utils/graph/Graph.java
index 03bc0c2..ca3d06f 100644
--- a/BJC-Utils2/src/main/java/bjc/utils/graph/Graph.java
+++ b/BJC-Utils2/src/main/java/bjc/utils/graph/Graph.java
@@ -137,34 +137,36 @@ public class Graph<T> {
 
 		// Start at the initial vertex and visit it
 		GenHolder<T> src = new GenHolder<>(getInitial());
-		visited.add(src.held);
+		visited.add(src.unwrap(vl -> vl));
 
 		// Make sure we visit all the nodes
 		while (visited.size() != getVertexCount()) {
 			// Grab all edges adjacent to the provided edge
 
-			forAllEdgesMatchingAt(src.held,
+			forAllEdgesMatchingAt(src.unwrap(vl -> vl),
 					(tgt, weight) -> !visited.contains(tgt),
-					(tgt, weight) -> availEdges
-							.add(new Edge<T>(src.held, tgt, weight)));
+					(tgt, weight) -> availEdges.add(new Edge<T>(
+							src.unwrap(vl -> vl), tgt, weight)));
 
 			// Get the edge with the minimum distance
-			Edge<T> minEdge = availEdges.poll();
+			GenHolder<Edge<T>> minEdge = new GenHolder<>(
+					availEdges.poll());
 
 			// Only consider edges where we haven't visited the target of
 			// the edge
-			while (visited.contains(minEdge.getTarget())) {
-				minEdge = availEdges.poll();
+			while (visited
+					.contains(minEdge.unwrap(vl -> vl.getTarget()))) {
+				minEdge.transform((vl) -> availEdges.poll());
 			}
 
 			// Add it to our MST
-			minEdges.add(minEdge);
+			minEdges.add(minEdge.unwrap(vl -> vl));
 
 			// Advance to the next node
-			src.held = minEdge.getTarget();
+			src.transform((vl) -> minEdge.unwrap(vl1 -> vl1.getTarget()));
 
 			// Visit this node
-			visited.add(src.held);
+			visited.add(src.unwrap(vl -> vl));
 		}
 
 		return minEdges;
-- 
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