MeteredWindowStore — State Store of WindowStoreBuilder

MeteredWindowStore is a concrete WindowStore that registers the metric sensors (when initialized).

MeteredWindowStore is created exclusively when WindowStoreBuilder is requested for a state store.

Table 1. MeteredWindowStore’s (Latency and Throughput) Metric Sensors
Metric Sensor	Name	RecordingLevel	Description
`putTime`	`put`	`DEBUG`	Latency of put
`fetchTime`	`fetch`	`DEBUG`	Latency of fetch, all and fetchAll
`flushTime`	`flush`	`DEBUG`	Latency of flush
`restoreTime`	`restore`	`DEBUG`	Latency of init

Note	All the metric sensors are at `DEBUG` recording level so you have to turn them on using metrics.recording.level streams property.

MeteredWindowStore takes the following when created:

MeteredWindowStore initializes the internal registries and counters.

void init(final ProcessorContext context, final StateStore root)

Note	`init` is part of the StateStore Contract to initializes the state store.

init…FIXME

init requests the ProcessorContext for the StreamsMetrics and registers the metric sensors.

init…FIXME

MeteredWindowStore