org.springframework.cloud.context.scope.ScopeCache Maven / Gradle / Ivy
/*
* Copyright 2002-2011 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.springframework.cloud.context.scope;
import java.util.Collection;
/**
* A special purpose cache interface specifically for the {@link GenericScope} to use to manage cached bean instances.
* Implementations generally fall into two categories: those that store values "globally" (i.e. one instance per key),
* and those that store potentially multiple instances per key based on context (e.g. via a thread local). All
* implementations should be thread safe.
*
* @author Dave Syer
*
*/
public interface ScopeCache {
/**
* Remove the object with this name from the cache.
*
* @param name the object name
* @return the object removed or null if there was none
*/
Object remove(String name);
/**
* Clear the cache and return all objects in an unmodifiable collection.
*
* @return all objects stored in the cache
*/
Collection