Search API support

[siva CH]

Hi ,

Want to know Jcache has any search API's (searching in cache) or not , like ehcache2.x had some search API's(https://stackoverflow.com/questions/41586575/no-search-apis-in-ehcache-3).

Thanks,

Siva

[Ondro Mihályi]

Hi,

No, there's no search API in JCache. It's only possible to retrieve entries using a specific key or iterate through all of them: https://javadoc.io/doc/javax.cache/cache-api/latest/index.html

So, you could either iterate through all of them and filter them one by one, which isn't very efficient.

Or you could implement and register a cache entry listener, which will update a search index and then you could search directly using this index (not using JCache API). Obviously, you would have to maintain the index yourself, e.g. using https://lucene.apache.org/ or https://www.elastic.co/elasticsearch/ That would be more efficient but also much more work. But there's nothing else you could use in the standard JCache API.

All the best,

Ondro

Dátum: streda 27. júla 2022, čas: 12:39:20 UTC+2, odosielateľ: siva CH

[siva CH]

Thanks for reply.
If you know about ehcache3.x , Could you pls tell which is better i.e native ehcache3 and jache with ehcache3 , also in terms of performance.

Thanks,

Siva

[Chris Dennis]

Performance wise any native access is always going to have the edge (if there is an edge to be had). You pay for that edge with some amount of vendor lock-in. No one is going to be able to answer the question of which is better without knowing *everything* about your usecase and what “better” means to you, and what potential costs vendor lock-in might have.

 

Chris

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