From f8643f98c9a091cd9b56fc9468197ae58df0364b Mon Sep 17 00:00:00 2001
From: Ben Culkin <scorpress@gmail.com>
Date: Sat, 24 Sep 2022 12:35:09 -0400
Subject: Implement basic Petri nets

---
 src/main/java/bjc/funcdata/Freezable.java | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

(limited to 'src/main/java/bjc/funcdata')

diff --git a/src/main/java/bjc/funcdata/Freezable.java b/src/main/java/bjc/funcdata/Freezable.java
index e83accb..8bb037c 100644
--- a/src/main/java/bjc/funcdata/Freezable.java
+++ b/src/main/java/bjc/funcdata/Freezable.java
@@ -12,7 +12,7 @@ package bjc.funcdata;
  * 
  * @author Ben Culkin
  */
-public interface Freezable {
+public interface Freezable<F extends Freezable<?>> {
 	/**
 	 * Freezes the internal state of this object, making it immutable.
 	 * 
@@ -70,4 +70,15 @@ public interface Freezable {
 	default boolean isThawed() {
 		return !isFrozen();
 	}
+	
+	/**
+	 * Clone this object in a thawed state.
+	 * 
+	 * @return A thawed clone of this object
+	 * 
+	 * @throws CloneNotSupportedException If the underlying object doesn't support cloning
+	 */
+	default F cloneAsThawed() throws CloneNotSupportedException {
+		throw new CloneNotSupportedException();
+	}
 }
-- 
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