StatsRegistry class

Global statistics registry — one TableStats per table.

Available extensions

• StatsRegistryPersistenceExt

Constructors

StatsRegistry()

Properties

allStats → Map<String, TableStats>

Expose all stats for persistence.

no setter

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

estimateCardinality({required String table, required String? column, required String op, dynamic value, dynamic low, dynamic high}) → double

Estimate output cardinality after applying a predicate.

get(String table) → TableStats?

has(String table) → bool

isStale(String table, {Duration maxAge = const Duration(hours: 24)}) → bool

Returns true if stats for table are stale (older than maxAge).

isStaleFor(String tableName, {Duration maxAge = const Duration(hours: 24)}) → bool

Available on StatsRegistry, provided by the StatsRegistryPersistenceExt extension

Returns true if stats for tableName are stale (collected more than maxAge ago).

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

remove(String table) → void

Remove stats for a table (used when table is dropped).

toString() → String

A string representation of this object.

inherited

update(TableStats stats) → void

Operators

operator ==(Object other) → bool

The equality operator.

inherited