idxsub
Idxsub is a term used in software design to describe an index-based subscription mechanism. It refers to a pattern where clients subscribe to a stream of events or updates that are filtered by a specific index or key. This allows selective notification and efficient data delivery in systems that handle large or partitioned datasets.
Core concepts include the index or key that serves as the filter, a subscription handle to manage
Typical use cases include database change streams, real-time dashboards, event-driven architectures, sensor networks, and message brokers
Implementation considerations involve selecting an underlying mechanism such as pub/sub, message queues, or reactive streams. Key
Limitations to watch for include increased system complexity as the number of indices grows, potential scalability
See also keyed subscription, pub/sub, reactive streams, and change data capture.