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rx.android.lifecycle.OperatorSubscribeUntil Maven / Gradle / Ivy
/**
* 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.android.lifecycle;
import rx.Observable;
import rx.Subscriber;
import rx.observers.SerializedSubscriber;
/**
* Returns an Observable that emits the items from the source Observable until another Observable
* emits an item.
*
* Unlike takeUntil, this choose to unsubscribe the parent rather than calling onComplete().
*/
final class OperatorSubscribeUntil implements Observable.Operator {
private final Observable extends R> other;
public OperatorSubscribeUntil(final Observable extends R> other) {
this.other = other;
}
@Override
public Subscriber super T> call(final Subscriber super T> child) {
final Subscriber parent = new SerializedSubscriber(child);
other.unsafeSubscribe(new Subscriber(child) {
@Override
public void onCompleted() {
parent.unsubscribe();
}
@Override
public void onError(Throwable e) {
parent.onError(e);
}
@Override
public void onNext(R t) {
parent.unsubscribe();
}
});
return parent;
}
}