Kotlin ehcache example

kotlin-ehcache.kt

val cacheManager = CacheManagerBuilder.newCacheManagerBuilder()
            .with(CacheManagerPersistenceConfiguration(storagePath))
            .withCache("kweetsCache",
                    CacheConfigurationBuilder.newCacheConfigurationBuilder<Int, Kweet>()
                            .withResourcePools(ResourcePoolsBuilder.newResourcePoolsBuilder()
                                    .heap(1000, EntryUnit.ENTRIES)
                                    .offheap(10, MemoryUnit.MB)
                                    .disk(100, MemoryUnit.MB, true)
                            )
                            .buildConfig(Int::class.javaObjectType, Kweet::class.java))
            .build(true)

Not necessarily Int::class.javaObjectType but your Entity's primary key.