All Superinterfaces:

Outlet<O>

All Known Subinterfaces:

MapDownlink<K,V>, MapInletMapOutlet<KI,KO,VI,VO,I,O>, MapInoutlet<K,VI,VO,I,O>, MapLane<K,V>, RecordOutlet

All Known Implementing Classes:

AbstractMapInletMapOutlet, AbstractMapInoutlet, AbstractMapOutlet, AbstractRecordOutlet, DownlinkRecord, FilterFieldsCombinator, FilterFieldsOperator, JoinMapLaneDownlink, ListDownlinkRecord, MapDownlinkRecord, MapDownlinkView, MapFieldValuesCombinator, MapFieldValuesOperator, MapInput, MapLaneView, MemoizeMapCombinator, RecordModel, RecordScope, ValueDownlinkRecord
```
public interface MapOutlet<K,V,O>
extends Outlet<O>
```
Output connector from a Streamlet for a key-value map state.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`boolean`	`containsKey(K key)`	Returns `true` if the current state of this `MapOutlet` contains the given `key`; otherwise returns `false`.
`void`	`decohereInputKey(K key, KeyEffect effect)`	Marks this `MapOutlet` as needing an `effect` applied to a given `key`.
`default MapOutlet<K,V,? extends Map<K,V>>`	`filter(FilterFieldsFunction<? super K,? super V> func)`
`V`	`get(K key)`	Returns the value assocaited with the given `key` in the current state of this `MapOutlet`, if defined; otherwise returns `null`.
`Iterator<K>`	`keyIterator()`	Returns an `Iterator` over the keys in the current state of this `MapOutlet`.
`default <V2> MapOutlet<K,V2,? extends Map<K,V2>>`	`map(MapFieldValuesFunction<? super K,? super V,V2> func)`
`default MapOutlet<K,V,O>`	`memoize()`
`Outlet<V>`	`outlet(K key)`	Returns an `Outlet` that updates when the specified `key` updates.
`void`	`recohereInputKey(K key, int version)`	Updates the state of an individual `key` in this `MapOutlet` to make it consistent with the target `version`.
`default <U> Outlet<U>`	`reduce(U identity, CombinerFunction<? super V,U> accumulator, CombinerFunction<U,U> combiner)`
`default MapOutlet<K,V,O>`	`watch(WatchFieldsFunction<? super K,? super V> func)`

Methods inherited from interface swim.streamlet.Outlet
bindOutput, decohereInput, disconnectInputs, disconnectOutputs, get, map, outputIterator, recohereInput, unbindOutput, unbindOutputs, watch

- Method Detail
  - containsKey
```
boolean containsKey(K key)
```
    Returns true if the current state of this MapOutlet contains the given key; otherwise returns false.
  - get
```
V get(K key)
```
    Returns the value assocaited with the given key in the current state of this MapOutlet, if defined; otherwise returns null.
  - keyIterator
```
Iterator<K> keyIterator()
```
    Returns an Iterator over the keys in the current state of this MapOutlet.
  - outlet
```
Outlet<V> outlet(K key)
```
    Returns an Outlet that updates when the specified key updates.
  - decohereInputKey
```
void decohereInputKey(K key,
                      KeyEffect effect)
```
    Marks this MapOutlet as needing an effect applied to a given key. Decohering an individual key decoheres the entire state of the Outlet. But only the decoherent keys need to be updated in order to recohere the overall state of the Outlet.
  - recohereInputKey
```
void recohereInputKey(K key,
                      int version)
```
    Updates the state of an individual key in this MapOutlet to make it consistent with the target version. The MapOutlet only needs to update if its current version differs from the target version. To update the state of a key, the MapOutlet first invokes Streamlet.recohere(int) on its attached streamlets. Then, for each dependent output, it invokes MapInlet.recohereOutputKey(Object, int), if the dependent output is a MapInlet, or it invokes Inlet.recohereOutput(int), if the dependent output is not a MapInlet.
  - memoize
```
default MapOutlet<K,V,O> memoize()
```
    Specified by:
    
    memoize in interface Outlet<K>
  - filter
```
default MapOutlet<K,V,? extends Map<K,V>> filter(FilterFieldsFunction<? super K,? super V> func)
```
  - map
```
default <V2> MapOutlet<K,V2,? extends Map<K,V2>> map(MapFieldValuesFunction<? super K,? super V,V2> func)
```
  - reduce
```
default <U> Outlet<U> reduce(U identity,
                             CombinerFunction<? super V,U> accumulator,
                             CombinerFunction<U,U> combiner)
```
  - watch
```
default MapOutlet<K,V,O> watch(WatchFieldsFunction<? super K,? super V> func)
```

Interface MapOutlet<K,​V,​O>

Method Summary

Methods inherited from interface swim.streamlet.Outlet

Method Detail

containsKey

get

keyIterator

outlet

decohereInputKey

recohereInputKey

memoize

filter

map

reduce

watch

Interface MapOutlet<K,V,O>