/**
* 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.internal.operators;
import rx.
Observable.
Operator;
import rx.
Subscriber;
/**
* Hides the identity of another observable.
*
* @param <T>
* the return value type of the wrapped observable.
*/
public final class
OperatorAsObservable<T> implements
Operator<T, T> {
/** Lazy initialization via inner-class holder. */
static final class
Holder {
/** A singleton instance. */
static final
OperatorAsObservable<
Object>
INSTANCE = new
OperatorAsObservable<
Object>();
}
/**
* @param <T> the value type
* @return a singleton instance of this stateless operator.
*/
@
SuppressWarnings("unchecked")
public static <T>
OperatorAsObservable<T>
instance() {
return (
OperatorAsObservable<T>)
Holder.
INSTANCE;
}
OperatorAsObservable() {
// singleton
}
@
Override
public
Subscriber<? super T>
call(
Subscriber<? super T>
s) {
return
s;
}
}