--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/fschmidt/db/util/SoftCacheMap.java	Sun Oct 05 17:24:15 2025 -0600
@@ -0,0 +1,57 @@
+/*
+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.util;
+
+import java.lang.ref.ReferenceQueue;
+import java.lang.ref.SoftReference;
+
+
+public final class SoftCacheMap<K,V> extends CacheMap<K,V> {
+
+	static final class MySoftReference<K,V> extends SoftReference<V> implements MyReference<K,V> {
+		private final K key;
+
+		MySoftReference(K key,V value,ReferenceQueue<V> q) {
+			super(value,q);
+			this.key = key;
+		}
+
+		public K key() {
+			return key;
+		}
+
+		public boolean equals(Object obj) {
+			Object o = this.get();
+			if( o==null )
+				return false;
+			SoftReference ref = (SoftReference)obj;
+			return o.equals(ref.get());
+		}
+
+	}
+
+	protected MyReference<K,V> newReference(K key,V value,ReferenceQueue<V> q) {
+		return new MySoftReference<K,V>(key,value,q);
+	}
+
+}