cachescope-ehcache

cache.xml

<spring:bean id="cacheManager" name="cacheManager" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean"/>

<spring:bean id="cache" name="cache" class="org.springframework.cache.ehcache.EhCacheFactoryBean">
    <spring:property name="cacheManager" ref="cacheManager"/>
    <spring:property name="cacheName" value="dbCache"/>
    <spring:property name="maxElementsInMemory" value="10000"/>
    <spring:property name="eternal" value="false"/>
    <spring:property name="timeToIdle" value="120"/>
    <spring:property name="timeToLive" value="120"/>
    <spring:property name="overflowToDisk" value="true"/>
    <spring:property name="maxElementsOnDisk" value="10000000"/>
    <spring:property name="diskPersistent" value="false"/>
    <spring:property name="diskExpiryThreadIntervalSeconds" value="120"/>
    <spring:property name="memoryStoreEvictionPolicy" value="LRU"/>
</spring:bean>

EhcacheObjectStore.java

package com.ricston.cache;

import java.io.Serializable;

import net.sf.ehcache.Ehcache;
import net.sf.ehcache.Element;

import org.mule.api.store.ObjectStore;
import org.mule.api.store.ObjectStoreException;

public class EhcacheObjectStore<T extends Serializable> implements ObjectStore<T> {

  private Ehcache cache;

	@Override
	public synchronized boolean contains(Serializable key) throws ObjectStoreException {
		return cache.isKeyInCache(key);
	}

	@Override
	public synchronized void store(Serializable key, T value) throws ObjectStoreException {
		Element element = new Element(key, value);
		cache.put(element);
	}

	@SuppressWarnings("unchecked")
	@Override
	public synchronized T retrieve(Serializable key) throws ObjectStoreException {

		Element element = cache.get(key);
		if (element == null)
		{
			return null;
		}
		return (T) element.getValue();
	}

	@Override
	public synchronized T remove(Serializable key) throws ObjectStoreException {
		T value = retrieve(key);
		cache.remove(key);
		return value;
	}

	@Override
	public boolean isPersistent() {
		return false;
	}

	public Ehcache getCache() {
		return cache;
	}

	public void setCache(Ehcache cache) {
		this.cache = cache;
	}

}

objectstore.xml

<ee:object-store-caching-strategy name="cachingStrategy" doc:name="cachingStrategy">
    <custom-object-store class="com.ricston.cache.EhcacheObjectStore">
        <spring:property name="cache" ref="cache"/>
    </custom-object-store>
</ee:object-store-caching-strategy>