From 25959ffced5eb4e239610e79f05c1774e54ec29c Mon Sep 17 00:00:00 2001
From: bculkin2442 <bjculkin@mix.wvu.edu>
Date: Mon, 29 Feb 2016 09:16:54 -0500
Subject: Refactored Pair interface

Pair now has a proper functional interface
---
 BJC-Utils2/src/main/java/bjc/utils/data/Pair.java  |  9 +++++--
 .../main/java/bjc/utils/gen/WeightedGrammar.java   | 31 ++++++++++++++--------
 2 files changed, 27 insertions(+), 13 deletions(-)

diff --git a/BJC-Utils2/src/main/java/bjc/utils/data/Pair.java b/BJC-Utils2/src/main/java/bjc/utils/data/Pair.java
index 11ce79c..5bd9d63 100644
--- a/BJC-Utils2/src/main/java/bjc/utils/data/Pair.java
+++ b/BJC-Utils2/src/main/java/bjc/utils/data/Pair.java
@@ -1,5 +1,6 @@
 package bjc.utils.data;
 
+import java.util.function.BiConsumer;
 import java.util.function.BiFunction;
 import java.util.function.Function;
 
@@ -17,12 +18,12 @@ public class Pair<L, R> {
 	/**
 	 * The left value of the pair
 	 */
-	public L	l;
+	private L	l;
 
 	/**
 	 * The right value of the pair
 	 */
-	public R	r;
+	private R	r;
 
 	/**
 	 * Create a new pair that holds two nulls.
@@ -70,4 +71,8 @@ public class Pair<L, R> {
 	public <E> E merge(BiFunction<L, R, E> bf) {
 		return bf.apply(l, r);
 	}
+	
+	public void doWith(BiConsumer<L, R> bc) {
+		bc.accept(l, r);
+	}
 }
diff --git a/BJC-Utils2/src/main/java/bjc/utils/gen/WeightedGrammar.java b/BJC-Utils2/src/main/java/bjc/utils/gen/WeightedGrammar.java
index de1e7b8..7c3ea6a 100644
--- a/BJC-Utils2/src/main/java/bjc/utils/gen/WeightedGrammar.java
+++ b/BJC-Utils2/src/main/java/bjc/utils/gen/WeightedGrammar.java
@@ -247,15 +247,16 @@ public class WeightedGrammar<E> {
 		FunctionalList<Pair<Integer, FunctionalList<E>>> newResults = new FunctionalList<>();
 
 		rule.getValues().forEach((par) -> {
-			FunctionalList<E> nl = par.r.clone();
+			FunctionalList<E> nl = par
+					.merge((left, right) -> right.clone());
 			nl.prepend(prefixToken);
 
-			newResults.add(new Pair<>(par.l + addProb, nl));
+			newResults.add(new Pair<>(
+					par.merge((left, right) -> left) + addProb, nl));
 		});
 
-		newResults.forEach((par) -> {
-			addCase(rName, par.l, par.r);
-		});
+		newResults.forEach((par) -> par
+				.doWith((left, right) -> addCase(rName, left, right)));
 	}
 
 	/**
@@ -281,7 +282,8 @@ public class WeightedGrammar<E> {
 
 			// TODO bugtest this. if it works, write multiSuffixWith
 			for (int i = 1; i <= nTimes; i++) {
-				FunctionalList<E> nl = par.r.clone();
+				FunctionalList<E> nl = par
+						.merge((left, right) -> right.clone());
 
 				for (int j = 1; j <= i; j++) {
 					nl.prepend(prefixToken);
@@ -291,12 +293,15 @@ public class WeightedGrammar<E> {
 			}
 
 			nls.forEach((ls) -> {
-				newResults.add(new Pair<>(par.l + addProb, ls));
+				newResults.add(new Pair<>(
+						par.merge((left, right) -> left) + addProb, ls));
 			});
 		});
 
 		newResults.forEach((par) -> {
-			addCase(rName, par.l, par.r);
+			par.doWith((left, right) -> {
+				addCase(rName, left, right);
+			});
 		});
 	}
 
@@ -363,14 +368,18 @@ public class WeightedGrammar<E> {
 		FunctionalList<Pair<Integer, FunctionalList<E>>> newResults = new FunctionalList<>();
 
 		rule.getValues().forEach((par) -> {
-			FunctionalList<E> nl = par.r.clone();
+			FunctionalList<E> nl = par
+					.merge((left, right) -> right.clone());
 			nl.add(prefixToken);
 
-			newResults.add(new Pair<>(par.l + addProb, nl));
+			newResults.add(new Pair<>(
+					par.merge((left, right) -> left) + addProb, nl));
 		});
 
 		newResults.forEach((par) -> {
-			addCase(rName, par.l, par.r);
+			par.doWith((left, right) -> {
+				addCase(rName, left, right);
+			});
 		});
 	}
 
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