LazyMap<K, V> class

A lazy variable that caches a map of type Map<K, V>.

• An unmodifiable map view is returned to prevent modification of the cache.
• The same object is returned until an update of the cache is requested by calling the method updateCache() or using the optional parameter updateCache: true to access the cached variable.

Inheritance

• Object
• Lazy<Map<K, V>>
• LazyMap

Constructors

LazyMap(ObjectFactory<Map<K, V>> objectFactory)

Constructs an object of type LazyMap<T>.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

isUpToDate → bool

Returns true if the cached object has been initialized and is up-to-date.

no setter, inherited

objectFactory → ObjectFactory<Map<K, V>>

Callback used to create the cached object.

final, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

call({bool updateCache = false}) → Map<K, V>

Returns the cached object.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

override

updateCache() → void

After calling this function the cached object will be (lazily) re-initialized when it is next accessed.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited