DataLoader<Id, Data> class
A utility for batching multiple requests together, to improve application performance.
Enqueues batches of requests until the next tick, when they are processed in bulk.
Port of Facebook's DataLoader:
https://github.com/graphql/dataloader
Constructors
-
DataLoader(FutureOr<
Iterable< loadMany(Iterable<Data> >Id> ), {bool cache = true})
Properties
- cache → bool
-
Whether to use a memoization cache to store the results of past lookups.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
-
loadMany
→ FutureOr<
Iterable< Function(Iterable<Data> >Id> ) -
Invoked to fetch a batch of keys simultaneously.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
clear(
Id key) → void -
Clears the value at
key, if it exists. -
clearAll(
) → void - Clears the entire cache.
-
close(
) → void - Closes this DataLoader, cancelling all pending requests.
-
load(
Id id) → Future< Data> - Returns a Future that completes when the next batch of requests completes.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
prime(
Id key, Data value) → void - Primes the cache with the provided key and value. If the key already exists, no change is made.
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited