/**
* Copyright (c) 2016-present, RxJava Contributors.
*
* 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 io.reactivex.internal.operators.observable;
import io.reactivex.
Observable;
import io.reactivex.
Observer;
import io.reactivex.internal.disposables.
EmptyDisposable;
import io.reactivex.internal.fuseable.
ScalarCallable;
public final class
ObservableEmpty extends
Observable<
Object> implements
ScalarCallable<
Object> {
public static final
Observable<
Object>
INSTANCE = new
ObservableEmpty();
private
ObservableEmpty() {
}
@
Override
protected void
subscribeActual(
Observer<? super
Object>
o) {
EmptyDisposable.
complete(
o);
}
@
Override
public
Object call() {
return null; // null scalar is interpreted as being empty
}
}