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/**
* Copyright 2014 Netflix, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License is
* distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See
* the License for the specific language governing permissions and limitations under the License.
*/
package rx;
import java.util.*;
import java.util.concurrent.*;
import rx.annotations.*;
import rx.exceptions.*;
import rx.functions.*;
import rx.internal.operators.*;
import rx.internal.util.*;
import rx.observables.*;
import rx.observers.SafeSubscriber;
import rx.plugins.*;
import rx.schedulers.*;
import rx.subjects.*;
import rx.subscriptions.Subscriptions;
/**
* The Observable class that implements the Reactive Pattern.
*
* This class provides methods for subscribing to the Observable as well as delegate methods to the various
* Observers.
*
* The documentation for this class makes use of marble diagrams. The following legend explains these diagrams:
*
*
*
* For more information see the ReactiveX
* documentation.
*
* @param
* the type of the items emitted by the Observable
*/
public class Observable {
final OnSubscribe onSubscribe;
/**
* Creates an Observable with a Function to execute when it is subscribed to.
*
* Note: Use {@link #create(OnSubscribe)} to create an Observable, instead of this constructor,
* unless you specifically have a need for inheritance.
*
* @param f
* {@link OnSubscribe} to be executed when {@link #subscribe(Subscriber)} is called
*/
protected Observable(OnSubscribe f) {
this.onSubscribe = f;
}
private static final RxJavaObservableExecutionHook hook = RxJavaPlugins.getInstance().getObservableExecutionHook();
/**
* Returns an Observable that will execute the specified function when a {@link Subscriber} subscribes to
* it.
*
*
*
* Write the function you pass to {@code create} so that it behaves as an Observable: It should invoke the
* Subscriber's {@link Subscriber#onNext onNext}, {@link Subscriber#onError onError}, and
* {@link Subscriber#onCompleted onCompleted} methods appropriately.
*
* A well-formed Observable must invoke either the Subscriber's {@code onCompleted} method exactly once or
* its {@code onError} method exactly once.
*
{@code create} does not operate by default on a particular {@link Scheduler}.
*
*
* @param
* the type of the items that this Observable emits
* @param f
* a function that accepts an {@code Subscriber}, and invokes its {@code onNext},
* {@code onError}, and {@code onCompleted} methods as appropriate
* @return an Observable that, when a {@link Subscriber} subscribes to it, will execute the specified
* function
* @see ReactiveX operators documentation: Create
*/
public final static Observable create(OnSubscribe f) {
return new Observable(hook.onCreate(f));
}
/**
* Invoked when Observable.subscribe is called.
*/
public interface OnSubscribe extends Action1> {
// cover for generics insanity
}
/**
* Operator function for lifting into an Observable.
*/
public interface Operator extends Func1, Subscriber> {
// cover for generics insanity
}
/**
* Lifts a function to the current Observable and returns a new Observable that when subscribed to will pass
* the values of the current Observable through the Operator function.
*
* In other words, this allows chaining Observers together on an Observable for acting on the values within
* the Observable.
*
* If the operator you are creating is designed to act on the individual items emitted by a source
* Observable, use {@code lift}. If your operator is designed to transform the source Observable as a whole
* (for instance, by applying a particular set of existing RxJava operators to it) use {@link #compose}.
*
*
Scheduler:
*
{@code lift} does not operate by default on a particular {@link Scheduler}.
*
*
* @param lift the Operator that implements the Observable-operating function to be applied to the source
* Observable
* @return an Observable that is the result of applying the lifted Operator to the source Observable
* @see RxJava wiki: Implementing Your Own Operators
*/
public final Observable lift(final Operator lift) {
return new Observable(new OnSubscribe() {
@Override
public void call(Subscriber o) {
try {
Subscriber st = hook.onLift(lift).call(o);
try {
// new Subscriber created and being subscribed with so 'onStart' it
st.onStart();
onSubscribe.call(st);
} catch (Throwable e) {
// localized capture of errors rather than it skipping all operators
// and ending up in the try/catch of the subscribe method which then
// prevents onErrorResumeNext and other similar approaches to error handling
if (e instanceof OnErrorNotImplementedException) {
throw (OnErrorNotImplementedException) e;
}
st.onError(e);
}
} catch (Throwable e) {
if (e instanceof OnErrorNotImplementedException) {
throw (OnErrorNotImplementedException) e;
}
// if the lift function failed all we can do is pass the error to the final Subscriber
// as we don't have the operator available to us
o.onError(e);
}
}
});
}
/**
* Transform an Observable by applying a particular Transformer function to it.
*
* This method operates on the Observable itself whereas {@link #lift} operates on the Observable's
* Subscribers or Observers.
*
* If the operator you are creating is designed to act on the individual items emitted by a source
* Observable, use {@link #lift}. If your operator is designed to transform the source Observable as a whole
* (for instance, by applying a particular set of existing RxJava operators to it) use {@code compose}.
*
*
Scheduler:
*
{@code compose} does not operate by default on a particular {@link Scheduler}.
*
*
* @param transformer implements the function that transforms the source Observable
* @return the source Observable, transformed by the transformer function
* @see RxJava wiki: Implementing Your Own Operators
*/
@SuppressWarnings("unchecked")
public Observable compose(Transformer transformer) {
return ((Transformer) transformer).call(this);
}
/**
* Transformer function used by {@link #compose}.
* @warn more complete description needed
*/
public interface Transformer extends Func1, Observable> {
// cover for generics insanity
}
/* *********************************************************************************************************
* Operators Below Here
* *********************************************************************************************************
*/
/**
* Mirrors the one Observable in an Iterable of several Observables that first either emits an item or sends
* a termination notification.
*
*
*
*
Scheduler:
*
{@code amb} does not operate by default on a particular {@link Scheduler}.
*
*
* @param sources
* an Iterable of Observable sources competing to react first
* @return an Observable that emits the same sequence as whichever of the source Observables first
* emitted an item or sent a termination notification
* @see ReactiveX operators documentation: Amb
*/
public final static Observable amb(Iterable> sources) {
return create(OnSubscribeAmb.amb(sources));
}
/**
* Given two Observables, mirrors the one that first either emits an item or sends a termination
* notification.
*
*
*
*
Scheduler:
*
{@code amb} does not operate by default on a particular {@link Scheduler}.
*
*
* @param o1
* an Observable competing to react first
* @param o2
* an Observable competing to react first
* @return an Observable that emits the same sequence as whichever of the source Observables first
* emitted an item or sent a termination notification
* @see ReactiveX operators documentation: Amb
*/
public final static Observable amb(Observable o1, Observable o2) {
return create(OnSubscribeAmb.amb(o1, o2));
}
/**
* Given three Observables, mirrors the one that first either emits an item or sends a termination
* notification.
*
*
*
*
Scheduler:
*
{@code amb} does not operate by default on a particular {@link Scheduler}.
*
*
* @param o1
* an Observable competing to react first
* @param o2
* an Observable competing to react first
* @param o3
* an Observable competing to react first
* @return an Observable that emits the same sequence as whichever of the source Observables first
* emitted an item or sent a termination notification
* @see ReactiveX operators documentation: Amb
*/
public final static Observable amb(Observable o1, Observable o2, Observable o3) {
return create(OnSubscribeAmb.amb(o1, o2, o3));
}
/**
* Given four Observables, mirrors the one that first either emits an item or sends a termination
* notification.
*
*
*
*
Scheduler:
*
{@code amb} does not operate by default on a particular {@link Scheduler}.
*
*
* @param o1
* an Observable competing to react first
* @param o2
* an Observable competing to react first
* @param o3
* an Observable competing to react first
* @param o4
* an Observable competing to react first
* @return an Observable that emits the same sequence as whichever of the source Observables first
* emitted an item or sent a termination notification
* @see ReactiveX operators documentation: Amb
*/
public final static Observable amb(Observable o1, Observable o2, Observable o3, Observable o4) {
return create(OnSubscribeAmb.amb(o1, o2, o3, o4));
}
/**
* Given five Observables, mirrors the one that first either emits an item or sends a termination
* notification.
*
*
*
*
Scheduler:
*
{@code amb} does not operate by default on a particular {@link Scheduler}.
*
*
* @param o1
* an Observable competing to react first
* @param o2
* an Observable competing to react first
* @param o3
* an Observable competing to react first
* @param o4
* an Observable competing to react first
* @param o5
* an Observable competing to react first
* @return an Observable that emits the same sequence as whichever of the source Observables first
* emitted an item or sent a termination notification
* @see ReactiveX operators documentation: Amb
*/
public final static Observable amb(Observable o1, Observable o2, Observable o3, Observable o4, Observable o5) {
return create(OnSubscribeAmb.amb(o1, o2, o3, o4, o5));
}
/**
* Given six Observables, mirrors the one that first either emits an item or sends a termination
* notification.
*
*
*
*
Scheduler:
*
{@code amb} does not operate by default on a particular {@link Scheduler}.
*
*
* @param o1
* an Observable competing to react first
* @param o2
* an Observable competing to react first
* @param o3
* an Observable competing to react first
* @param o4
* an Observable competing to react first
* @param o5
* an Observable competing to react first
* @param o6
* an Observable competing to react first
* @return an Observable that emits the same sequence as whichever of the source Observables first
* emitted an item or sent a termination notification
* @see ReactiveX operators documentation: Amb
*/
public final static Observable amb(Observable o1, Observable o2, Observable o3, Observable o4, Observable o5, Observable o6) {
return create(OnSubscribeAmb.amb(o1, o2, o3, o4, o5, o6));
}
/**
* Given seven Observables, mirrors the one that first either emits an item or sends a termination
* notification.
*
*
*
*
Scheduler:
*
{@code amb} does not operate by default on a particular {@link Scheduler}.
*
*
* @param o1
* an Observable competing to react first
* @param o2
* an Observable competing to react first
* @param o3
* an Observable competing to react first
* @param o4
* an Observable competing to react first
* @param o5
* an Observable competing to react first
* @param o6
* an Observable competing to react first
* @param o7
* an Observable competing to react first
* @return an Observable that emits the same sequence as whichever of the source Observables first
* emitted an item or sent a termination notification
* @see ReactiveX operators documentation: Amb
*/
public final static Observable amb(Observable o1, Observable o2, Observable o3, Observable o4, Observable o5, Observable o6, Observable o7) {
return create(OnSubscribeAmb.amb(o1, o2, o3, o4, o5, o6, o7));
}
/**
* Given eight Observables, mirrors the one that first either emits an item or sends a termination
* notification.
*
*
*
*
Scheduler:
*
{@code amb} does not operate by default on a particular {@link Scheduler}.
*
*
* @param o1
* an Observable competing to react first
* @param o2
* an Observable competing to react first
* @param o3
* an Observable competing to react first
* @param o4
* an Observable competing to react first
* @param o5
* an Observable competing to react first
* @param o6
* an Observable competing to react first
* @param o7
* an Observable competing to react first
* @param o8
* an observable competing to react first
* @return an Observable that emits the same sequence as whichever of the source Observables first
* emitted an item or sent a termination notification
* @see ReactiveX operators documentation: Amb
*/
public final static Observable amb(Observable o1, Observable o2, Observable o3, Observable o4, Observable o5, Observable o6, Observable o7, Observable o8) {
return create(OnSubscribeAmb.amb(o1, o2, o3, o4, o5, o6, o7, o8));
}
/**
* Given nine Observables, mirrors the one that first either emits an item or sends a termination
* notification.
*
*
*
*
Scheduler:
*
{@code amb} does not operate by default on a particular {@link Scheduler}.
*
*
* @param o1
* an Observable competing to react first
* @param o2
* an Observable competing to react first
* @param o3
* an Observable competing to react first
* @param o4
* an Observable competing to react first
* @param o5
* an Observable competing to react first
* @param o6
* an Observable competing to react first
* @param o7
* an Observable competing to react first
* @param o8
* an Observable competing to react first
* @param o9
* an Observable competing to react first
* @return an Observable that emits the same sequence as whichever of the source Observables first
* emitted an item or sent a termination notification
* @see ReactiveX operators documentation: Amb
*/
public final static Observable amb(Observable o1, Observable o2, Observable o3, Observable o4, Observable o5, Observable o6, Observable o7, Observable o8, Observable o9) {
return create(OnSubscribeAmb.amb(o1, o2, o3, o4, o5, o6, o7, o8, o9));
}
/**
* Combines two source Observables by emitting an item that aggregates the latest values of each of the
* source Observables each time an item is received from either of the source Observables, where this
* aggregation is defined by a specified function.
*
*
*
*
Scheduler:
*
{@code combineLatest} does not operate by default on a particular {@link Scheduler}.
*
*
* @param o1
* the first source Observable
* @param o2
* the second source Observable
* @param combineFunction
* the aggregation function used to combine the items emitted by the source Observables
* @return an Observable that emits items that are the result of combining the items emitted by the source
* Observables by means of the given aggregation function
* @see ReactiveX operators documentation: CombineLatest
*/
@SuppressWarnings("unchecked")
public static final Observable combineLatest(Observable o1, Observable o2, Func2 combineFunction) {
return combineLatest(Arrays.asList(o1, o2), Functions.fromFunc(combineFunction));
}
/**
* Combines three source Observables by emitting an item that aggregates the latest values of each of the
* source Observables each time an item is received from any of the source Observables, where this
* aggregation is defined by a specified function.
*
*
*
*
Scheduler:
*
{@code combineLatest} does not operate by default on a particular {@link Scheduler}.
*
*
* @param o1
* the first source Observable
* @param o2
* the second source Observable
* @param o3
* the third source Observable
* @param combineFunction
* the aggregation function used to combine the items emitted by the source Observables
* @return an Observable that emits items that are the result of combining the items emitted by the source
* Observables by means of the given aggregation function
* @see ReactiveX operators documentation: CombineLatest
*/
@SuppressWarnings("unchecked")
public static final Observable combineLatest(Observable o1, Observable o2, Observable o3, Func3 combineFunction) {
return combineLatest(Arrays.asList(o1, o2, o3), Functions.fromFunc(combineFunction));
}
/**
* Combines four source Observables by emitting an item that aggregates the latest values of each of the
* source Observables each time an item is received from any of the source Observables, where this
* aggregation is defined by a specified function.
*
*
*
*
Scheduler:
*
{@code combineLatest} does not operate by default on a particular {@link Scheduler}.
*
*
* @param o1
* the first source Observable
* @param o2
* the second source Observable
* @param o3
* the third source Observable
* @param o4
* the fourth source Observable
* @param combineFunction
* the aggregation function used to combine the items emitted by the source Observables
* @return an Observable that emits items that are the result of combining the items emitted by the source
* Observables by means of the given aggregation function
* @see ReactiveX operators documentation: CombineLatest
*/
@SuppressWarnings("unchecked")
public static final Observable combineLatest(Observable o1, Observable o2, Observable o3, Observable o4,
Func4 combineFunction) {
return combineLatest(Arrays.asList(o1, o2, o3, o4), Functions.fromFunc(combineFunction));
}
/**
* Combines five source Observables by emitting an item that aggregates the latest values of each of the
* source Observables each time an item is received from any of the source Observables, where this
* aggregation is defined by a specified function.
*
*
*
*
Scheduler:
*
{@code combineLatest} does not operate by default on a particular {@link Scheduler}.
*
*
* @param o1
* the first source Observable
* @param o2
* the second source Observable
* @param o3
* the third source Observable
* @param o4
* the fourth source Observable
* @param o5
* the fifth source Observable
* @param combineFunction
* the aggregation function used to combine the items emitted by the source Observables
* @return an Observable that emits items that are the result of combining the items emitted by the source
* Observables by means of the given aggregation function
* @see ReactiveX operators documentation: CombineLatest
*/
@SuppressWarnings("unchecked")
public static final Observable combineLatest(Observable o1, Observable o2, Observable o3, Observable o4, Observable o5,
Func5 combineFunction) {
return combineLatest(Arrays.asList(o1, o2, o3, o4, o5), Functions.fromFunc(combineFunction));
}
/**
* Combines six source Observables by emitting an item that aggregates the latest values of each of the
* source Observables each time an item is received from any of the source Observables, where this
* aggregation is defined by a specified function.
*
*
*
*
Scheduler:
*
{@code combineLatest} does not operate by default on a particular {@link Scheduler}.
*
*
* @param o1
* the first source Observable
* @param o2
* the second source Observable
* @param o3
* the third source Observable
* @param o4
* the fourth source Observable
* @param o5
* the fifth source Observable
* @param o6
* the sixth source Observable
* @param combineFunction
* the aggregation function used to combine the items emitted by the source Observables
* @return an Observable that emits items that are the result of combining the items emitted by the source
* Observables by means of the given aggregation function
* @see ReactiveX operators documentation: CombineLatest
*/
@SuppressWarnings("unchecked")
public static final Observable combineLatest(Observable o1, Observable o2, Observable o3, Observable o4, Observable o5, Observable o6,
Func6 combineFunction) {
return combineLatest(Arrays.asList(o1, o2, o3, o4, o5, o6), Functions.fromFunc(combineFunction));
}
/**
* Combines seven source Observables by emitting an item that aggregates the latest values of each of the
* source Observables each time an item is received from any of the source Observables, where this
* aggregation is defined by a specified function.
*
*
*
*
Scheduler:
*
{@code combineLatest} does not operate by default on a particular {@link Scheduler}.
*
*
* @param o1
* the first source Observable
* @param o2
* the second source Observable
* @param o3
* the third source Observable
* @param o4
* the fourth source Observable
* @param o5
* the fifth source Observable
* @param o6
* the sixth source Observable
* @param o7
* the seventh source Observable
* @param combineFunction
* the aggregation function used to combine the items emitted by the source Observables
* @return an Observable that emits items that are the result of combining the items emitted by the source
* Observables by means of the given aggregation function
* @see ReactiveX operators documentation: CombineLatest
*/
@SuppressWarnings("unchecked")
public static final Observable combineLatest(Observable o1, Observable o2, Observable o3, Observable o4, Observable o5, Observable o6, Observable o7,
Func7 combineFunction) {
return combineLatest(Arrays.asList(o1, o2, o3, o4, o5, o6, o7), Functions.fromFunc(combineFunction));
}
/**
* Combines eight source Observables by emitting an item that aggregates the latest values of each of the
* source Observables each time an item is received from any of the source Observables, where this
* aggregation is defined by a specified function.
*
*
*
*
Scheduler:
*
{@code combineLatest} does not operate by default on a particular {@link Scheduler}.
*
*
* @param o1
* the first source Observable
* @param o2
* the second source Observable
* @param o3
* the third source Observable
* @param o4
* the fourth source Observable
* @param o5
* the fifth source Observable
* @param o6
* the sixth source Observable
* @param o7
* the seventh source Observable
* @param o8
* the eighth source Observable
* @param combineFunction
* the aggregation function used to combine the items emitted by the source Observables
* @return an Observable that emits items that are the result of combining the items emitted by the source
* Observables by means of the given aggregation function
* @see ReactiveX operators documentation: CombineLatest
*/
@SuppressWarnings("unchecked")
public static final Observable combineLatest(Observable o1, Observable o2, Observable o3, Observable o4, Observable o5, Observable o6, Observable o7, Observable o8,
Func8 combineFunction) {
return combineLatest(Arrays.asList(o1, o2, o3, o4, o5, o6, o7, o8), Functions.fromFunc(combineFunction));
}
/**
* Combines nine source Observables by emitting an item that aggregates the latest values of each of the
* source Observables each time an item is received from any of the source Observables, where this
* aggregation is defined by a specified function.
*
*
*
*
Scheduler:
*
{@code combineLatest} does not operate by default on a particular {@link Scheduler}.
*
*
* @param o1
* the first source Observable
* @param o2
* the second source Observable
* @param o3
* the third source Observable
* @param o4
* the fourth source Observable
* @param o5
* the fifth source Observable
* @param o6
* the sixth source Observable
* @param o7
* the seventh source Observable
* @param o8
* the eighth source Observable
* @param o9
* the ninth source Observable
* @param combineFunction
* the aggregation function used to combine the items emitted by the source Observables
* @return an Observable that emits items that are the result of combining the items emitted by the source
* Observables by means of the given aggregation function
* @see ReactiveX operators documentation: CombineLatest
*/
@SuppressWarnings("unchecked")
public static final Observable combineLatest(Observable o1, Observable o2, Observable o3, Observable o4, Observable o5, Observable o6, Observable o7, Observable o8,
Observable o9,
Func9 combineFunction) {
return combineLatest(Arrays.asList(o1, o2, o3, o4, o5, o6, o7, o8, o9), Functions.fromFunc(combineFunction));
}
/**
* Combines a list of source Observables by emitting an item that aggregates the latest values of each of
* the source Observables each time an item is received from any of the source Observables, where this
* aggregation is defined by a specified function.
*
*
Scheduler:
*
{@code combineLatest} does not operate by default on a particular {@link Scheduler}.
*
*
* @param
* the common base type of source values
* @param
* the result type
* @param sources
* the list of source Observables
* @param combineFunction
* the aggregation function used to combine the items emitted by the source Observables
* @return an Observable that emits items that are the result of combining the items emitted by the source
* Observables by means of the given aggregation function
* @see ReactiveX operators documentation: CombineLatest
*/
public static final Observable combineLatest(List> sources, FuncN combineFunction) {
return create(new OnSubscribeCombineLatest(sources, combineFunction));
}
/**
* Returns an Observable that emits the items emitted by each of the Observables emitted by the source
* Observable, one after the other, without interleaving them.
*
*
*
*
Scheduler:
*
{@code concat} does not operate by default on a particular {@link Scheduler}.
*
*
* @param observables
* an Observable that emits Observables
* @return an Observable that emits items all of the items emitted by the Observables emitted by
* {@code observables}, one after the other, without interleaving them
* @see ReactiveX operators documentation: Concat
*/
public final static Observable concat(Observable> observables) {
return observables.lift(OperatorConcat.instance());
}
/**
* Returns an Observable that emits the items emitted by two Observables, one after the other, without
* interleaving them.
*
*
*
*
Scheduler:
*
{@code concat} does not operate by default on a particular {@link Scheduler}.
*
*
* @param t1
* an Observable to be concatenated
* @param t2
* an Observable to be concatenated
* @return an Observable that emits items emitted by the two source Observables, one after the other,
* without interleaving them
* @see ReactiveX operators documentation: Concat
*/
public final static Observable concat(Observable t1, Observable t2) {
return concat(just(t1, t2));
}
/**
* Returns an Observable that emits the items emitted by three Observables, one after the other, without
* interleaving them.
*
*
*
*
Scheduler:
*
{@code concat} does not operate by default on a particular {@link Scheduler}.
*
*
* @param t1
* an Observable to be concatenated
* @param t2
* an Observable to be concatenated
* @param t3
* an Observable to be concatenated
* @return an Observable that emits items emitted by the three source Observables, one after the other,
* without interleaving them
* @see ReactiveX operators documentation: Concat
*/
public final static Observable concat(Observable t1, Observable t2, Observable t3) {
return concat(just(t1, t2, t3));
}
/**
* Returns an Observable that emits the items emitted by four Observables, one after the other, without
* interleaving them.
*
*
*
*
Scheduler:
*
{@code concat} does not operate by default on a particular {@link Scheduler}.
*
*
* @param t1
* an Observable to be concatenated
* @param t2
* an Observable to be concatenated
* @param t3
* an Observable to be concatenated
* @param t4
* an Observable to be concatenated
* @return an Observable that emits items emitted by the four source Observables, one after the other,
* without interleaving them
* @see ReactiveX operators documentation: Concat
*/
public final static Observable concat(Observable t1, Observable t2, Observable t3, Observable t4) {
return concat(just(t1, t2, t3, t4));
}
/**
* Returns an Observable that emits the items emitted by five Observables, one after the other, without
* interleaving them.
*
*
*
*
Scheduler:
*
{@code concat} does not operate by default on a particular {@link Scheduler}.
*
*
* @param t1
* an Observable to be concatenated
* @param t2
* an Observable to be concatenated
* @param t3
* an Observable to be concatenated
* @param t4
* an Observable to be concatenated
* @param t5
* an Observable to be concatenated
* @return an Observable that emits items emitted by the five source Observables, one after the other,
* without interleaving them
* @see ReactiveX operators documentation: Concat
*/
public final static Observable concat(Observable t1, Observable t2, Observable t3, Observable t4, Observable t5) {
return concat(just(t1, t2, t3, t4, t5));
}
/**
* Returns an Observable that emits the items emitted by six Observables, one after the other, without
* interleaving them.
*
*
*
*
Scheduler:
*
{@code concat} does not operate by default on a particular {@link Scheduler}.
*
*
* @param t1
* an Observable to be concatenated
* @param t2
* an Observable to be concatenated
* @param t3
* an Observable to be concatenated
* @param t4
* an Observable to be concatenated
* @param t5
* an Observable to be concatenated
* @param t6
* an Observable to be concatenated
* @return an Observable that emits items emitted by the six source Observables, one after the other,
* without interleaving them
* @see ReactiveX operators documentation: Concat
*/
public final static Observable concat(Observable t1, Observable t2, Observable t3, Observable t4, Observable t5, Observable t6) {
return concat(just(t1, t2, t3, t4, t5, t6));
}
/**
* Returns an Observable that emits the items emitted by seven Observables, one after the other, without
* interleaving them.
*
*
*
*
Scheduler:
*
{@code concat} does not operate by default on a particular {@link Scheduler}.
*
*
* @param t1
* an Observable to be concatenated
* @param t2
* an Observable to be concatenated
* @param t3
* an Observable to be concatenated
* @param t4
* an Observable to be concatenated
* @param t5
* an Observable to be concatenated
* @param t6
* an Observable to be concatenated
* @param t7
* an Observable to be concatenated
* @return an Observable that emits items emitted by the seven source Observables, one after the other,
* without interleaving them
* @see ReactiveX operators documentation: Concat
*/
public final static Observable concat(Observable t1, Observable t2, Observable t3, Observable t4, Observable t5, Observable t6, Observable t7) {
return concat(just(t1, t2, t3, t4, t5, t6, t7));
}
/**
* Returns an Observable that emits the items emitted by eight Observables, one after the other, without
* interleaving them.
*
*
*
*
Scheduler:
*
{@code concat} does not operate by default on a particular {@link Scheduler}.
*
*
* @param t1
* an Observable to be concatenated
* @param t2
* an Observable to be concatenated
* @param t3
* an Observable to be concatenated
* @param t4
* an Observable to be concatenated
* @param t5
* an Observable to be concatenated
* @param t6
* an Observable to be concatenated
* @param t7
* an Observable to be concatenated
* @param t8
* an Observable to be concatenated
* @return an Observable that emits items emitted by the eight source Observables, one after the other,
* without interleaving them
* @see ReactiveX operators documentation: Concat
*/
public final static Observable concat(Observable t1, Observable t2, Observable t3, Observable t4, Observable t5, Observable t6, Observable t7, Observable t8) {
return concat(just(t1, t2, t3, t4, t5, t6, t7, t8));
}
/**
* Returns an Observable that emits the items emitted by nine Observables, one after the other, without
* interleaving them.
*
*
*
*
Scheduler:
*
{@code concat} does not operate by default on a particular {@link Scheduler}.
*
*
* @param t1
* an Observable to be concatenated
* @param t2
* an Observable to be concatenated
* @param t3
* an Observable to be concatenated
* @param t4
* an Observable to be concatenated
* @param t5
* an Observable to be concatenated
* @param t6
* an Observable to be concatenated
* @param t7
* an Observable to be concatenated
* @param t8
* an Observable to be concatenated
* @param t9
* an Observable to be concatenated
* @return an Observable that emits items emitted by the nine source Observables, one after the other,
* without interleaving them
* @see ReactiveX operators documentation: Concat
*/
public final static Observable concat(Observable t1, Observable t2, Observable t3, Observable t4, Observable t5, Observable t6, Observable t7, Observable t8, Observable t9) {
return concat(just(t1, t2, t3, t4, t5, t6, t7, t8, t9));
}
/**
* Returns an Observable that calls an Observable factory to create an Observable for each new Observer
* that subscribes. That is, for each subscriber, the actual Observable that subscriber observes is
* determined by the factory function.
*
*
*
* The defer Observer allows you to defer or delay emitting items from an Observable until such time as an
* Observer subscribes to the Observable. This allows an {@link Observer} to easily obtain updates or a
* refreshed version of the sequence.
*
*
Scheduler:
*
{@code defer} does not operate by default on a particular {@link Scheduler}.
*
*
* @param observableFactory
* the Observable factory function to invoke for each {@link Observer} that subscribes to the
* resulting Observable
* @param
* the type of the items emitted by the Observable
* @return an Observable whose {@link Observer}s' subscriptions trigger an invocation of the given
* Observable factory function
* @see ReactiveX operators documentation: Defer
*/
public final static Observable defer(Func0> observableFactory) {
return create(new OnSubscribeDefer(observableFactory));
}
/** An empty observable which just emits onCompleted to any subscriber. */
private static final Observable
* 
* 
* 
* 
* 
*