OperatorDistinctUntilChanged

rx.internal.operators

Class OperatorDistinctUntilChanged<T,U>

java.lang.Object
- rx.internal.operators.OperatorDistinctUntilChanged<T,U>

Type Parameters:

T - the value type

U - the key type

All Implemented Interfaces:

Func1<Subscriber<? super T>,Subscriber<? super T>>, Function, Observable.Operator<T,T>
```
public final class OperatorDistinctUntilChanged<T,U>
extends Object
implements Observable.Operator<T,T>
```
Returns an Observable that emits all sequentially distinct items emitted by the source.

Constructor Summary

Constructors

Constructor and Description
`OperatorDistinctUntilChanged(Func1<? super T,? extends U> keySelector)`

Method Summary

All Methods

Static Methods

Instance Methods

Concrete Methods
Modifier and Type	Method and Description
`Subscriber<? super T>`	`call(Subscriber<? super T> child)`
`static <T> OperatorDistinctUntilChanged<T,T>`	`instance()` Returns a singleton instance of OperatorDistinctUntilChanged that was built using the identity function for comparison ( `new OperatorDistinctUntilChanged(UtilityFunctions.identity())`).

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - OperatorDistinctUntilChanged
```
public OperatorDistinctUntilChanged(Func1<? super T,? extends U> keySelector)
```
- Method Detail
  - instance
```
public static <T> OperatorDistinctUntilChanged<T,T> instance()
```
    Returns a singleton instance of OperatorDistinctUntilChanged that was built using the identity function for comparison ( new OperatorDistinctUntilChanged(UtilityFunctions.identity())).
    
    Returns:
    
    Operator that emits sequentially distinct values only using the identity function for comparison
  - call
```
public Subscriber<? super T> call(Subscriber<? super T> child)
```