Hazelcast is a distributed, highly scalable, in-memory data grid that allows you to cache, partition, replicate, and distribute data across multiple nodes. It supports various data structures like map, queue, list, set, etc.
Below are steps on how to use Hazelcast as an in-memory cache:
Step 1: First, include the Hazelcast dependency in your project.
If you're using Maven, add it to your
Step 2: Start a Hazelcast instance:
You could start an instance by creating a new Hazelcast instance using the
Step 3: Use Hazelcast's distributed objects:
In this example, we will use
IMap, which behaves much like a regular Java Map with the added benefit of being distributed across the Hazelcast cluster.
Please note that Hazelcast automatically serializes your key and value objects, sends them to the member that hosts the related partition, and stores them in memory.
Step 4: Shutting Down Hazelcast:
When you've finished working with Hazelcast, you can shut down the instance to free up resources.
Remember to configure your Hazelcast according to your specific needs, such as setting eviction policies, enabling persistence, or configuring networking options like multicast or TCP/IP.