Package rx.internal.operators

Class OperatorToMap<T,K,V>

java.lang.Object

rx.internal.operators.OperatorToMap<T,K,V>

Type Parameters:

T - the value type of the input

K - the map-key type

V - the map-value type

All Implemented Interfaces:

Func1<Subscriber<? super Map<K,V>>,Subscriber<? super T>>, Function, Observable.Operator<Map<K,V>,T>

public final class OperatorToMap<T,K,V>
extends Object
implements Observable.Operator<Map<K,V>,T>

Maps the elements of the source observable into a java.util.Map instance and emits that once the source observable completes.

See Also:

• Issue #96

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	OperatorToMap.DefaultToMapFactory<K,V>	The default map factory.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final Func1<? super T,? extends K>	keySelector
private final Func0<? extends Map<K,V>>	mapFactory
(package private) final Func1<? super T,? extends V>	valueSelector

Constructor Summary

Constructors

Constructor	Description
OperatorToMap(Func1<? super T,? extends K> keySelector, Func1<? super T,? extends V> valueSelector)	ToMap with key selector, value selector and default HashMap factory.
OperatorToMap(Func1<? super T,? extends K> keySelector, Func1<? super T,? extends V> valueSelector, Func0<? extends Map<K,V>> mapFactory)	ToMap with key selector, value selector and custom Map factory.

Method Summary

Modifier and Type	Method	Description
Subscriber<? super T>	call(Subscriber<? super Map<K,V>> subscriber)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

keySelector

final Func1<? super T,? extends K> keySelector

valueSelector

final Func1<? super T,? extends V> valueSelector

mapFactory

private final Func0<? extends Map<K,V>> mapFactory

Constructor Details

OperatorToMap

public OperatorToMap(Func1<? super T,? extends K> keySelector,
 Func1<? super T,? extends V> valueSelector)

ToMap with key selector, value selector and default HashMap factory.

Parameters:

keySelector - the function extracting the map-key from the main value

valueSelector - the function extracting the map-value from the main value

OperatorToMap

public OperatorToMap(Func1<? super T,? extends K> keySelector,
 Func1<? super T,? extends V> valueSelector,
 Func0<? extends Map<K,V>> mapFactory)

ToMap with key selector, value selector and custom Map factory.

Parameters:

keySelector - the function extracting the map-key from the main value

valueSelector - the function extracting the map-value from the main value

mapFactory - function that returns a Map instance to store keys and values into

Method Details

call

public Subscriber<? super T> call(Subscriber<? super Map<K,V>> subscriber)

Specified by:

call in interface Func1<T,K>