1 files changed, 78 insertions, 0 deletions
diff --git a/src/main/java/bjc/data/Triple.java b/src/main/java/bjc/data/Triple.java
new file mode 100644
index 0000000..296a169
--- /dev/null
+++ b/src/main/java/bjc/data/Triple.java
@@ -0,0 +1,78 @@
+package bjc.data;
+
+/**
+ * Represents a tuple of three values
+ * @author bjcul
+ *
+ * @param <Left> The type of the first value
+ * @param <Middle> The type of the second value
+ * @param <Right> The type of the third value
+ */
+public interface Triple<Left, Middle, Right> {
+	// TODO: fill this out more; mapping and the like
+	/**
+	 * Get the left value for this triple.
+	 * 
+	 * @return The left value for this triple.
+	 */
+	public Left left();
+	
+	/**
+	 * Get the right value for this triple.
+	 * 
+	 * @return The right value for this triple.
+	 */
+	public Right right();
+
+	/**
+	 * Get the middle value for this triple.
+	 * 
+	 * @return The middle value for this triple.
+	 */
+	public Middle middle();
+	
+	/**
+	 * Create a new triple
+	 * 
+	 * @param <Left> The type for the left
+	 * @param <Middle> The type for the middle
+	 * @param <Right> The type for the right
+	 * 
+	 * @param l The left value
+	 * @param m The middle value
+	 * @param r The right value
+	 * 
+	 * @return A triple of the given values
+	 */
+	public static <Left, Middle, Right> Triple<Left, Middle, Right> of(Left l, Middle m, Right r) {
+		return new SimpleTriple<>(r, m, l);
+	}
+}
+
+final class SimpleTriple<Left, Middle, Right> implements Triple<Left, Middle, Right> {
+	private final Right r;
+	private final Middle m;
+	private final Left l;
+
+	SimpleTriple(Right r, Middle m, Left l) {
+		this.r = r;
+		this.m = m;
+		this.l = l;
+	}
+	
+	
+	@Override
+	public Left left() {
+		return l;
+	}
+
+	@Override
+	public Right right() {
+		return r;
+	}
+
+	@Override
+	public Middle middle() {
+		return m;
+	}
+}
+\ No newline at end of file