cutom ehcache evict policy with spring - spring

Question

If we want to custom evict policy besides LRU LFU FIFO, the way docs recommanded is to implement interface Policy then set MemoryStoreEvictionPolicy like:
manager = new CacheManager(EHCACHE_CONFIG_LOCATION);
cache = manager.getCache(CACHE_NAME);
cache.setMemoryStoreEvictionPolicy(new MyPolicy());
but if I used spring, use #cacheable and xml files like
<bean id="cacheManagerFactory" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean">
<property name="configLocation" value="classpath:ehcache.xml" ></property>
</bean>
<!-- cacheManager -->
<bean id="cacheManager" class="org.springframework.cache.ehcache.EhCacheCacheManager">
<property name="cacheManager" ref="cacheManagerFactory" />
</bean>
how can I inject my own policy in spring way?
thank you all

Answer 1

You may be best to implement your own class that sets the eviction policy on the cache when Spring initializes.
For example:
public class MyEvictionPolicySetter implements InitializingBean {
public static final String CACHE_NAME = "my_cache";
private CacheManager manager;
private Policy evictionPolicy;
#Override
public void afterPropertiesSet() {
Cache cache = manager.getCache(CACHE_NAME);
cache.setMemoryStoreEvictionPolicy(evictionPolicy);
}
public void setCacheManager(CacheManager manager) {
this.manager = manager;
}
public void setEvictionPolicy(Policy evictionPolicy) {
this.evictionPolicy = evictionPolicy;
}
}
And then in your Spring config:
<bean id="cacheManagerFactory" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean">
<property name="configLocation" value="classpath:ehcache.xml" ></property>
</bean>
<!-- Specify your eviction policy as a Spring bean -->
<bean id="evictionPolicy" class="MyPolicy"/>
<!-- This will set the eviction policy when Spring starts up -->
<bean id="evictionPolicySetter" class="EvictionPolicySetter">
<property name="cacheManager" ref="cacheManagerFactory"/>
<property name="evictionPolicy" ref="evictionPolicy"/>
</bean>