| /* |
| * Copyright 2007 Rickard Öberg. |
| * |
| * 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.apache.zest.library.invocationcache; |
| |
| import java.util.Map; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| /** |
| * Simple implementation of InvocationCache. |
| * <p> |
| * This {@link InvocationCache} should typically not be used at all, and only serves as an |
| * example. The @{code cachedValues} member is never emptied, so it constitutes a memory leak |
| * if the method arguments keep changing. |
| * </p> |
| * <p> |
| * <b>IMPORTANT: Only use this is you know that only a small set of arguments are used into your |
| * method(s).</b> |
| * </p> |
| */ |
| public class SimpleInvocationCacheMixin |
| implements InvocationCache |
| { |
| private final Map<String, Object> cachedValues = new ConcurrentHashMap<>(); |
| |
| @Override |
| public Object setCachedValue( String name, Object aResult ) |
| { |
| return cachedValues.put( name, aResult ); |
| } |
| |
| @Override |
| public Object cachedValue( String name ) |
| { |
| return cachedValues.get( name ); |
| } |
| |
| @Override |
| public Object removeCachedValue( String name ) |
| { |
| return cachedValues.remove( name ); |
| } |
| |
| @Override |
| public void clearCachedValues() |
| { |
| cachedValues.clear(); |
| } |
| |
| @Override |
| public int currentCacheSize() |
| { |
| return cachedValues.size(); |
| } |
| } |