From 87ae1dfc8d8cb7b51d7bda4750ce841bbe691cfc Mon Sep 17 00:00:00 2001
From: bculkin2442 <bjculkin@mix.wvu.edu>
Date: Sat, 7 May 2016 12:51:23 -0400
Subject: General changes

---
 .../main/java/bjc/utils/data/BoundListHolder.java  | 61 ++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 BJC-Utils2/src/main/java/bjc/utils/data/BoundListHolder.java

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

diff --git a/BJC-Utils2/src/main/java/bjc/utils/data/BoundListHolder.java b/BJC-Utils2/src/main/java/bjc/utils/data/BoundListHolder.java
new file mode 100644
index 0000000..fcb62f6
--- /dev/null
+++ b/BJC-Utils2/src/main/java/bjc/utils/data/BoundListHolder.java
@@ -0,0 +1,61 @@
+package bjc.utils.data;
+
+import java.util.function.Function;
+import java.util.function.UnaryOperator;
+
+import bjc.utils.funcdata.IFunctionalList;
+
+class BoundListHolder<ContainedType> implements IHolder<ContainedType> {
+	private IFunctionalList<IHolder<ContainedType>> heldHolders;
+
+	public BoundListHolder(
+			IFunctionalList<IHolder<ContainedType>> toHold) {
+		heldHolders = toHold;
+	}
+
+	@Override
+	public <BoundType> IHolder<BoundType> bind(
+			Function<ContainedType, IHolder<BoundType>> binder) {
+		IFunctionalList<IHolder<BoundType>> boundHolders = heldHolders
+				.map((containedHolder) -> {
+					return containedHolder.bind(binder);
+				});
+
+		return new BoundListHolder<>(boundHolders);
+	}
+
+	@Override
+	public <MappedType> IHolder<MappedType> map(
+			Function<ContainedType, MappedType> mapper) {
+		IFunctionalList<IHolder<MappedType>> mappedHolders = heldHolders
+				.map((containedHolder) -> {
+					return containedHolder.map(mapper);
+				});
+
+		return new BoundListHolder<>(mappedHolders);
+	}
+
+	@Override
+	public IHolder<ContainedType> transform(
+			UnaryOperator<ContainedType> transformer) {
+		heldHolders.forEach((containedHolder) -> {
+			containedHolder.transform(transformer);
+		});
+
+		return this;
+	}
+
+	@Override
+	public <UnwrappedType> UnwrappedType unwrap(
+			Function<ContainedType, UnwrappedType> unwrapper) {
+		return heldHolders.randItem().unwrap(unwrapper);
+	}
+
+	@Override
+	public <NewType> Function<ContainedType, IHolder<NewType>> lift(
+			Function<ContainedType, NewType> func) {
+		return (val) -> {
+			return new ListHolder<>(func.apply(val));
+		};
+	}
+}
-- 
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