--- /dev/null
+/*
+ * Copyright 2005 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.wamblee.cache;
+
+import java.io.Serializable;
+
+/**
+ * A cache that does not cache. This implementation is useful for disabling caching.
+ * Because of this implementation, application code does not need to distinguish
+ * between the situation where it a cache is used and where it isn't.
+ *
+ * @author Erik Brakkee
+ */
+public class ZeroCache<KeyType extends Serializable, ValueType extends Serializable>
+ implements Cache<KeyType, ValueType> {
+
+ public ZeroCache() {
+ // Empty.
+ }
+
+ /* (non-Javadoc)
+ * @see org.wamblee.cache.Cache#put(KeyType, ValueType)
+ */
+ public void put(KeyType aKey, ValueType aValue) {
+ // Empty.
+ }
+
+ /* (non-Javadoc)
+ * @see org.wamblee.cache.Cache#get(KeyType)
+ */
+ public ValueType get(KeyType aKey) {
+ return null;
+ }
+
+ /* (non-Javadoc)
+ * @see org.wamblee.cache.Cache#remove(KeyType)
+ */
+ public void remove(KeyType aKey) {
+ // Empty
+ }
+
+ /* (non-Javadoc)
+ * @see org.wamblee.cache.Cache#clear()
+ */
+ public void clear() {
+ // Empty
+ }
+}