From 5cf7bcf156970fe72f79e40b8a6e320ea160ac83 Mon Sep 17 00:00:00 2001
From: bculkin2442 <bjculkin@mix.wvu.edu>
Date: Fri, 21 Oct 2016 14:14:48 -0400
Subject: Documentation

---
 .../src/main/java/bjc/utils/data/BoundLazy.java    | 32 ++++++++++---
 .../main/java/bjc/utils/data/BoundLazyPair.java    | 55 ++++++++++++++--------
 .../src/main/java/bjc/utils/data/package-info.java |  1 +
 3 files changed, 61 insertions(+), 27 deletions(-)

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

diff --git a/BJC-Utils2/src/main/java/bjc/utils/data/BoundLazy.java b/BJC-Utils2/src/main/java/bjc/utils/data/BoundLazy.java
index d6f3b1d..b2ae7ce 100644
--- a/BJC-Utils2/src/main/java/bjc/utils/data/BoundLazy.java
+++ b/BJC-Utils2/src/main/java/bjc/utils/data/BoundLazy.java
@@ -7,7 +7,7 @@ import java.util.function.UnaryOperator;
 import bjc.utils.funcdata.FunctionalList;
 import bjc.utils.funcdata.IList;
 
-/*
+/**
  * Implements a lazy holder that has been bound
  */
 class BoundLazy<OldType, BoundContainedType>
@@ -35,8 +35,7 @@ class BoundLazy<OldType, BoundContainedType>
 	/*
 	 * Transformations currently pending on the bound value
 	 */
-	private IList<UnaryOperator<
-			BoundContainedType>>							actions	= new FunctionalList<>();
+	private IList<UnaryOperator<BoundContainedType>>		actions	= new FunctionalList<>();
 
 	/*
 	 * Create a new bound lazy value
@@ -50,11 +49,14 @@ class BoundLazy<OldType, BoundContainedType>
 	@Override
 	public <BoundType> IHolder<BoundType> bind(
 			Function<BoundContainedType, IHolder<BoundType>> bindr) {
+		if (bindr == null) {
+			throw new NullPointerException("Binder must not be null");
+		}
+
 		/*
 		 * Prepare a list of pending actions
 		 */
-		IList<UnaryOperator<
-				BoundContainedType>> pendingActions = new FunctionalList<>();
+		IList<UnaryOperator<BoundContainedType>> pendingActions = new FunctionalList<>();
 		actions.forEach(pendingActions::add);
 
 		/*
@@ -84,6 +86,11 @@ class BoundLazy<OldType, BoundContainedType>
 	@Override
 	public <NewType> Function<BoundContainedType, IHolder<NewType>> lift(
 			Function<BoundContainedType, NewType> func) {
+		if (func == null) {
+			throw new NullPointerException(
+					"Function to lift must not be null");
+		}
+
 		return (val) -> {
 			return new Lazy<>(func.apply(val));
 		};
@@ -92,9 +99,12 @@ class BoundLazy<OldType, BoundContainedType>
 	@Override
 	public <MappedType> IHolder<MappedType> map(
 			Function<BoundContainedType, MappedType> mapper) {
+		if (mapper == null) {
+			throw new NullPointerException("Mapper must not be null");
+		}
+
 		// Prepare a list of pending actions
-		IList<UnaryOperator<
-				BoundContainedType>> pendingActions = new FunctionalList<>();
+		IList<UnaryOperator<BoundContainedType>> pendingActions = new FunctionalList<>();
 		actions.forEach(pendingActions::add);
 
 		// Prepare the new supplier
@@ -127,6 +137,10 @@ class BoundLazy<OldType, BoundContainedType>
 	@Override
 	public IHolder<BoundContainedType> transform(
 			UnaryOperator<BoundContainedType> transformer) {
+		if (transformer == null) {
+			throw new NullPointerException("Transformer must not be null");
+		}
+
 		actions.add(transformer);
 
 		return this;
@@ -135,6 +149,10 @@ class BoundLazy<OldType, BoundContainedType>
 	@Override
 	public <UnwrappedType> UnwrappedType unwrap(
 			Function<BoundContainedType, UnwrappedType> unwrapper) {
+		if (unwrapper == null) {
+			throw new NullPointerException("Unwrapper must not be null");
+		}
+
 		if (!holderBound) {
 			boundHolder = oldSupplier.get().unwrap(binder::apply);
 		}
diff --git a/BJC-Utils2/src/main/java/bjc/utils/data/BoundLazyPair.java b/BJC-Utils2/src/main/java/bjc/utils/data/BoundLazyPair.java
index 622bd2e..2b3fb29 100644
--- a/BJC-Utils2/src/main/java/bjc/utils/data/BoundLazyPair.java
+++ b/BJC-Utils2/src/main/java/bjc/utils/data/BoundLazyPair.java
@@ -4,23 +4,38 @@ import java.util.function.BiFunction;
 import java.util.function.Function;
 import java.util.function.Supplier;
 
+/**
+ * Implements a lazy pair that has been bound
+ */
 class BoundLazyPair<OldLeft, OldRight, NewLeft, NewRight>
 		implements IPair<NewLeft, NewRight> {
-	private Supplier<
-			OldLeft>												leftSupplier;
-	private Supplier<
-			OldRight>												rightSupplier;
-
+	/*
+	 * The supplier of the left value
+	 */
+	private Supplier<OldLeft>										leftSupplier;
+	/*
+	 * The supplier of the right value
+	 */
+	private Supplier<OldRight>										rightSupplier;
+
+	/*
+	 * The binder to transform values
+	 */
 	private BiFunction<OldLeft, OldRight, IPair<NewLeft, NewRight>>	binder;
 
-	private IPair<NewLeft,
-			NewRight>												boundPair;
+	/*
+	 * The bound pair
+	 */
+	private IPair<NewLeft, NewRight>								boundPair;
 
+	/*
+	 * Whether the pair has been bound yet
+	 */
 	private boolean													pairBound;
 
 	public BoundLazyPair(Supplier<OldLeft> leftSupp,
-			Supplier<OldRight> rightSupp, BiFunction<OldLeft, OldRight,
-					IPair<NewLeft, NewRight>> bindr) {
+			Supplier<OldRight> rightSupp,
+			BiFunction<OldLeft, OldRight, IPair<NewLeft, NewRight>> bindr) {
 		leftSupplier = leftSupp;
 		rightSupplier = rightSupp;
 		binder = bindr;
@@ -28,10 +43,13 @@ class BoundLazyPair<OldLeft, OldRight, NewLeft, NewRight>
 
 	@Override
 	public <BoundLeft, BoundRight> IPair<BoundLeft, BoundRight> bind(
-			BiFunction<NewLeft, NewRight,
-					IPair<BoundLeft, BoundRight>> bindr) {
-		IHolder<IPair<NewLeft,
-				NewRight>> newPair = new Identity<>(boundPair);
+			BiFunction<NewLeft, NewRight, IPair<BoundLeft, BoundRight>> bindr) {
+		if (bindr == null) {
+			throw new NullPointerException("Binder must not be null");
+		}
+
+		IHolder<IPair<NewLeft, NewRight>> newPair = new Identity<>(
+				boundPair);
 		IHolder<Boolean> newPairMade = new Identity<>(pairBound);
 
 		Supplier<NewLeft> leftSupp = () -> {
@@ -94,13 +112,10 @@ class BoundLazyPair<OldLeft, OldRight, NewLeft, NewRight>
 	}
 
 	@Override
-	public <OtherLeft, OtherRight, CombinedLeft,
-			CombinedRight> IPair<CombinedLeft, CombinedRight> combine(
-					IPair<OtherLeft, OtherRight> otherPair,
-					BiFunction<NewLeft, OtherLeft,
-							CombinedLeft> leftCombiner,
-					BiFunction<NewRight, OtherRight,
-							CombinedRight> rightCombiner) {
+	public <OtherLeft, OtherRight, CombinedLeft, CombinedRight> IPair<CombinedLeft, CombinedRight> combine(
+			IPair<OtherLeft, OtherRight> otherPair,
+			BiFunction<NewLeft, OtherLeft, CombinedLeft> leftCombiner,
+			BiFunction<NewRight, OtherRight, CombinedRight> rightCombiner) {
 		return otherPair.bind((otherLeft, otherRight) -> {
 			return bind((leftVal, rightVal) -> {
 				return new LazyPair<>(
diff --git a/BJC-Utils2/src/main/java/bjc/utils/data/package-info.java b/BJC-Utils2/src/main/java/bjc/utils/data/package-info.java
index a6f05dd..f5039bc 100644
--- a/BJC-Utils2/src/main/java/bjc/utils/data/package-info.java
+++ b/BJC-Utils2/src/main/java/bjc/utils/data/package-info.java
@@ -4,4 +4,5 @@
  * @author ben
  *
  */
+@org.eclipse.jdt.annotation.NonNullByDefault
 package bjc.utils.data;
\ No newline at end of file
-- 
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