In one of my recent project, i want to cache\u00a0 method output. For implementing method level cache, i have used spring cache. For implement Spring cache, we can use grails cache plugin.<\/p>\n
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It’s very easy to integrate cache plugin with grails.<\/p>\n
1. Add following plugin dependency in BuildConfig.groovy.<\/p>\n
[groovy]compile ":springcache:1.3.1"<\/p>\n
[\/groovy]<\/p>\n
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2.\u00a0 We need to define the caches in resource.groovy. Use below mention code to create cache in resources.groovy.<\/p>\n
[groovy]<\/p>\n
studentCache(EhCacheFactoryBean) { bean ->
\ncacheManager = ref("springcacheCacheManager")
\ncacheName = "studentCache"
\nmemoryStoreEvictionPolicy = "LRU"
\n}
\n[\/groovy]<\/p>\n
EhCacheFactoryBean – Pre define class of the spring
\nstudentCache – Cache name<\/p>\n
3. Add following codes in Config.groovy file to enable cache.<\/p>\n
[groovy]
\nspringcache {
\n defaults {
\n eternal = false
\n diskPersistent = false
\n }
\n caches {
\n studentCache {
\n memoryStoreEvictionPolicy = "LRU"
\n ttl=1000
\n }
\n }
\n}
\n[\/groovy]<\/p>\n
We need to mention the cache name that we want to enable. We can enable multiple cache.<\/p>\n
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4. Add @Cacheable annotation above method that you want to cache.<\/p>\n
[groovy]
\n@Cacheable(cache="studentCache")
\n Student showStudent(long id){
\n return Student.get(id)
\n }
\n[\/groovy]<\/p>\n
@Cacheable – We need to pass cache name
\nBut one thing we need to ensure, the class in which we are implementing the cache, it should be managed by spring or grails.
\nRun server, hit the url, you can see our method output is cached.
\nHope so this code will work for you \ud83d\ude42<\/p>\n
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