Cache APIs

The client has two cache APIs, RegionService and Cache.

RegionService API

RegionService provides:

• Access to existing cache regions.
• Access to the query service for the cache, which sends queries to the servers. See Remote Querying and Continuous Querying.

RegionService is inherited by Cache.

You do not use instances of RegionService except for secure client applications with many users. See Creating Multiple Secure User Connections with RegionService.

Cache API

Use the Cache to manage your client caches. You have one Cache per client.

The Cache inherits RegionService and adds management of these client caching features:

• Region creation.
• Subscription keepalive management for durable clients.
• Access to the underlying distributed system.
• RegionService creation for secure access by multiple users.