Example: EVCache using Eureka

Below example depicts the use case for storing customer data in EVCache and using Eureka to discover & manage EVCache instances. The name of the EVCache cluster is called as EVCACHE_CUSTOMER and the cache name is called as cid.

Creating EVCache instance

Create an instance of EVCache using the Builder passing the app name EVCACHE_CUSTOMER and the cache name called as cid. The cache name (optional) is used to prefix the keys stored in EVCache to avoid cache collisions.

public class MyClient {
    @Inject
    public MyClient(EVCache.Builder evCacheBuilder, <Other Librariess your client needs>) {
        ....
        EVCache evCache = evCacheBuilder.setAppName("EVCACHE_CUSTOMER").setCachePrefix("cid").build();
    }
}

Performing operations on EVCache

/*
Sets the key: "Hello" to value: "World" for a time of 900 seconds in EVCache. This data will be written to both zones A and B.
*/
evCache.set("Hello", "World", 900);

/*
Gets the value for key: "Hello" from EVCache. The data will be retrieved from the zone local to the client. 
If the client is not in those zones then a zone will be chosen at random.
*/
String value = evCache.get("Hello");

//Deletes the value for key: "Hello" from EVCache.
evCache.delete("Hello");