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

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`.
`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`.
`void`	`invalidateInputKey(K key, KeyEffect effect)`	Marks this `MapOutlet` as needing an `effect` applied to a given `key`.
`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`	`reconcileInputKey(K key, int version)`	Reconciles the state of an individual `key` in this `MapOutlet`, if the version of this `MapOutlet`'s state differs from 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, disconnectInputs, disconnectOutputs, get, invalidateInput, map, outputIterator, reconcileInput, 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.
  - invalidateInputKey
```
void invalidateInputKey(K key,
                        KeyEffect effect)
```
    Marks this MapOutlet as needing an effect applied to a given key. Invalidating an individual key invalidates the entire state of the Outlet. But only the invalidated keys need to be updated in order to reconcile the overall state of the Outlet.
  - reconcileInputKey
```
void reconcileInputKey(K key,
                       int version)
```
    Reconciles the state of an individual key in this MapOutlet, if the version of this MapOutlet's state differs from the target version. To reconcile the state of a key, the MapOutlet first invokes Streamlet.reconcile(int) on its attached streamlets. Then, for each dependent output, it invokes MapInlet.reconcileOutputKey(Object, int), if the dependent output is a MapInlet, or it invokes Inlet.reconcileOutput(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

invalidateInputKey

reconcileInputKey

memoize

filter

map

reduce

watch

Interface MapOutlet<K,V,O>