Added support for dynamic discovery of files, https://github.com/OpenHFT/Chronicle-Core/issues/88

src/main/java/net/openhft/chronicle/hash/ChronicleHash.java

@@ -25,6 +25,7 @@ import net.openhft.chronicle.set.ChronicleSet;
 import org.jetbrains.annotations.NotNull;
 
 import java.io.File;
+import java.lang.reflect.Type;
 import java.util.Map;
 import java.util.Set;
 import java.util.function.Consumer;
@@ -96,6 +97,11 @@ public interface ChronicleHash<K, E extends HashEntry<K>, SC extends HashSegment
      */
     Class<K> keyClass();
 
+    /**
+     * @return Type as a Class or UnresolvedType if unknown.
+     */
+    Type keyType();
+
     /**
      * Returns a context to perform arbitrary operations with the given key in this store.
      * Conventionally, should be used in a try-with-resources block: <pre>{@code