When using Spring with Hibernate or JPA, it can be very convenient to use objects as method parameters and automatically convert primary keys to those objects. For example: @RequestMapping(value = "/person/{personId}", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)@ResponseBodypublic PersonDto getById(@PathVariable Person person) { return person;} instead of: @RequestMapping(value = "/person/{personId}", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)@ResponseBodypublic … Continue reading Spring ID to Entity Conversion
Month: July 2015
Issues using Ehcache with ARC as the Hibernate Cache
When using Ehcache’s ARC (Automatic Resource Control) on a cache acting as the Hibernate cache, these kinds of warning will likely appear: WARN [pool-1-thread-1] [ehcache.pool.impl.DefaultSizeOfEngine] sizeOf The configured limit of 100 object references was reached while attempting to calculate the size of the object graph. This can be avoided by adding stop points with @IgnoreSizeOf … Continue reading Issues using Ehcache with ARC as the Hibernate Cache
Issues using Ehcache with ARC as the Thymeleaf Cache
Ehcache’s ARC (Automatic Resource Control) is pretty great – it more or less automatically and optimally handles cache sizing/allocation. Using ARC, one can effectively say, “Here’s 2GB to allocate for caching – no more than that – manage the cache as best as possible.” Of course, more complex rules can also be done (on a … Continue reading Issues using Ehcache with ARC as the Thymeleaf Cache
Using Spring Cache as the Thymeleaf Cache
Thymeleaf includes caching that can be used to cache templates, fragments, messages, and expressions. The default implementation is an in-memory cache using standard Java collections. Wouldn’t it be nice to use the Spring Cache Abstraction instead? The advantages of such a setup include: Consistency – why have many separate caching implementations each configured in different … Continue reading Using Spring Cache as the Thymeleaf Cache