--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/fschmidt/db/LongKey.java	Sun Oct 05 17:24:15 2025 -0600
@@ -0,0 +1,48 @@
+/*
+Copyright (c) 2008  Franklin Schmidt <fschmidt@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+package fschmidt.db;
+
+
+public final class LongKey implements DbKey {
+	private final long id;
+
+	public LongKey(long id) {
+		this.id = id;
+	}
+
+	public long value() {
+		return id;
+	}
+
+	public int hashCode() {
+		return (int)id;
+	}
+
+	public boolean equals(Object obj) {
+		return obj instanceof LongKey && ((LongKey)obj).id==id;
+	}
+
+	public String toString() {
+		return Long.toString(id);
+	}
+}