spring ConcurrentMapCacheFactoryBean 源码
spring ConcurrentMapCacheFactoryBean 代码
文件路径：/spring-context/src/main/java/org/springframework/cache/concurrent/ConcurrentMapCacheFactoryBean.java
/*
* Copyright 2002-2017 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
*
* https://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.cache.concurrent;
import java.util.concurrent.ConcurrentMap;
import org.springframework.beans.factory.BeanNameAware;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.lang.Nullable;
import org.springframework.util.StringUtils;
/**
* {@link FactoryBean} for easy configuration of a {@link ConcurrentMapCache}
* when used within a Spring container. Can be configured through bean properties;
* uses the assigned Spring bean name as the default cache name.
*
* <p>Useful for testing or simple caching scenarios, typically in combination
* with {@link org.springframework.cache.support.SimpleCacheManager} or
* dynamically through {@link ConcurrentMapCacheManager}.
*
* @author Costin Leau
* @author Juergen Hoeller
* @since 3.1
*/
public class ConcurrentMapCacheFactoryBean
implements FactoryBean<ConcurrentMapCache>, BeanNameAware, InitializingBean {
private String name = "";
@Nullable
private ConcurrentMap<Object, Object> store;
private boolean allowNullValues = true;
@Nullable
private ConcurrentMapCache cache;
/**
* Specify the name of the cache.
* <p>Default is "" (empty String).
*/
public void setName(String name) {
this.name = name;
}
/**
* Specify the ConcurrentMap to use as an internal store
* (possibly pre-populated).
* <p>Default is a standard {@link java.util.concurrent.ConcurrentHashMap}.
*/
public void setStore(ConcurrentMap<Object, Object> store) {
this.store = store;
}
/**
* Set whether to allow {@code null} values
* (adapting them to an internal null holder value).
* <p>Default is "true".
*/
public void setAllowNullValues(boolean allowNullValues) {
this.allowNullValues = allowNullValues;
}
@Override
public void setBeanName(String beanName) {
if (!StringUtils.hasLength(this.name)) {
setName(beanName);
}
}
@Override
public void afterPropertiesSet() {
this.cache = (this.store != null ? new ConcurrentMapCache(this.name, this.store, this.allowNullValues) :
new ConcurrentMapCache(this.name, this.allowNullValues));
}
@Override
@Nullable
public ConcurrentMapCache getObject() {
return this.cache;
}
@Override
public Class<?> getObjectType() {
return ConcurrentMapCache.class;
}
@Override
public boolean isSingleton() {
return true;
}
}
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