Class CollectionExtensionMethods
- Namespace
- SodaFlow.Collections
- Assembly
- SodaFlow.Collections.dll
The part of the C# surface with optional values: the cells for one item,
and the lookups that answer with a Maybe<T> and not with a
TryGet.
[PublicAPI]
public static class CollectionExtensionMethods- Inheritance
-
CollectionExtensionMethods
- Inherited Members
Remarks
These are here and not in SodaFlow.Collections.Core, because
Maybe<T> is in SodaFlow.Functional and F# does not use that
assembly. F# has option. Thus, the core answers with a TryGet
and with an integer, and each language surface adds its own optional type
above the core. See
ReactiveCollection<TKey, TIdentity, TState>.
Methods
- ChangeFor<TKey, TIdentity, TState>(ItemChange<TKey, TIdentity, TState>, TKey)
The result of a change on one key. The two levels are deliberate and they give different data. The outer Maybe<T> gives if the change named the key, and no value means no event for this observer. The inner Maybe<T> gives if the collection has the key after the change, thus a removal comes as a value that holds no value.
- IdentityCell<TKey, TIdentity, TState>(ReactiveCollection<TKey, TIdentity, TState>, TKey)
A cell that follows the immutable part of one item. It has no value while the key is missing.
- IndexOf<TKey, TIdentity, TState>(OrderedKeys<TKey, TIdentity, TState>, TKey)
The position of a key in an ordered set, when the set has that key.
- ItemCell<TKey, TIdentity, TState>(ReactiveCollection<TKey, TIdentity, TState>, TKey)
A cell that follows the two parts of one item together. It has no value while the store does not have the key.
- Lookup<TKey, TState>(StateMap<TKey, TState>, TKey)
Returns the state for a key, when there is one.
- Lookup<TKey, TIdentity, TState>(CollectionSnapshot<TKey, TIdentity, TState>, TKey)
Returns the two parts of the item for a key, when there is one.
- StateCell<TKey, TIdentity, TState>(ReactiveCollection<TKey, TIdentity, TState>, TKey)
A cell that follows the mutable part of one item. It has no value while the store does not have the key.