From 3e10ea223f25a8afa34c5a374a98acbec9d58300 Mon Sep 17 00:00:00 2001
From: Danila Fedorin <danila.fedorin@gmail.com>
Date: Thu, 3 Aug 2017 20:50:53 -0700
Subject: [PATCH] Add a class that keeps track of the implementation
 information.

---
 .../abacus/plugin/NumberImplementation.java     | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 src/main/java/org/nwapw/abacus/plugin/NumberImplementation.java

diff --git a/src/main/java/org/nwapw/abacus/plugin/NumberImplementation.java b/src/main/java/org/nwapw/abacus/plugin/NumberImplementation.java
new file mode 100644
index 0000000..c57fbc6
--- /dev/null
+++ b/src/main/java/org/nwapw/abacus/plugin/NumberImplementation.java
@@ -0,0 +1,17 @@
+package org.nwapw.abacus.plugin;
+
+import org.nwapw.abacus.number.NumberInterface;
+
+import java.util.Map;
+import java.util.function.Function;
+
+public abstract class NumberImplementation {
+
+    private Class<? extends NumberInterface> implementation;
+    private Map<String, Function<NumberInterface, NumberInterface>> promotionPaths;
+    private int priority;
+
+    public abstract NumberInterface instanceForString(String string);
+    public abstract NumberInterface instanceForPi();
+
+}