Switch functional data to use interfaces

1 files changed, 44 insertions, 0 deletions

diff --git a/BJC-Utils2/src/main/java/bjc/utils/funcutils/FuncUtils.java b/BJC-Utils2/src/main/java/bjc/utils/funcutils/FuncUtils.java
new file mode 100644
index 0000000..d89b7da
--- /dev/null
+++ b/BJC-Utils2/src/main/java/bjc/utils/funcutils/FuncUtils.java
@@ -0,0 +1,44 @@
+package bjc.utils.funcutils;
+
+import java.util.function.BiFunction;
+import java.util.function.Function;
+import java.util.function.IntConsumer;
+
+/**
+ * Utility things for functions
+ * 
+ * @author ben
+ *
+ */
+public class FuncUtils {
+	/**
+	 * Do the specified action the specified number of times
+	 * 
+	 * @param nTimes
+	 *            The number of times to do the action
+	 * @param cons
+	 *            The action to perform
+	 */
+	public static void doTimes(int nTimes, IntConsumer cons) {
+		for (int i = 0; i < nTimes; i++) {
+			cons.accept(i);
+		}
+	}
+
+	/**
+	 * Convert a binary function into a unary function that returns a
+	 * function
+	 * 
+	 * @param <A> The initial type of the function
+	 * @param <B> The intermediate type of the function
+	 * @param <C> The terminal type of the function
+	 * @param func The function to transform
+	 * @return The function transformed into a unary function returning a function
+	 */
+	public static <A, B, C> Function<A, Function<B, C>> curry2(
+			BiFunction<A, B, C> func) {
+		return (arg1) -> (arg2) -> {
+			return func.apply(arg1, arg2);
+		};
+	}
+}