CacheMetrics class final

A snapshot of cache statistics at a point in time.

Obtain via Cache.metrics for a one-shot snapshot, or listen to Cache.metricsStream for periodic updates.

Constructors

CacheMetrics({required int hits, required int misses, required int evictions, required int currentEntries, required int estimatedBytes, required DateTime since}): const

currentEntries → int: Number of entries currently held in this cache.
final
estimatedBytes → int: Estimated total size in bytes of all current entries. Returns 0 if no SizeEstimator was configured.
final
evictions → int: Number of entries removed by the eviction policy (LRU, TTL sweep, memory pressure). Does not include manual Cache.remove calls.
final
hashCode → int: The hash code for this object.
no setterinherited
hitRate → double: Fraction of get calls that were hits: hits / (hits + misses). Returns 0.0 if no get calls have been made yet.
no setter
hits → int: Number of Cache.get calls that returned a non-null, non-expired value.
final
misses → int: Number of Cache.get calls that returned null (miss or hard expiry).
final
missRate → double: Fraction of get calls that were misses: misses / (hits + misses).
no setter
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
since → DateTime: The point in time from which these stats were collected.
final

copyWith({int? hits, int? misses, int? evictions, int? currentEntries, int? estimatedBytes, DateTime? since}) → CacheMetrics: Returns a copy of this metrics object with updated fields.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
toString() → String: A string representation of this object.
override