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 prefix called as cid. The cache prefix (optional) is used to prefix the keys stored in EVCache to avoid cache collisions if the evcache cluster is shared across multiple use cases.

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");