1 files changed, 24 insertions, 0 deletions

diff --git a/src/main/java/cuchaz/enigma/translation/mapping/EntryMap.java b/src/main/java/cuchaz/enigma/translation/mapping/EntryMap.java
new file mode 100644
index 00000000..6af48466
--- /dev/null
+++ b/src/main/java/cuchaz/enigma/translation/mapping/EntryMap.java
@@ -0,0 +1,24 @@
+package cuchaz.enigma.translation.mapping;
+
+import cuchaz.enigma.translation.representation.entry.Entry;
+
+import javax.annotation.Nullable;
+import java.util.Collection;
+
+public interface EntryMap<T> {
+        void insert(Entry<?> entry, T value);
+
+        @Nullable
+        T remove(Entry<?> entry);
+
+        @Nullable
+        T get(Entry<?> entry);
+
+        default boolean contains(Entry<?> entry) {
+                return get(entry) != null;
+        }
+
+        Collection<Entry<?>> getAllEntries();
+
+        boolean isEmpty();
+}