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    • rx.internal.operators.OperatorSerialize Maven / Gradle / Ivy

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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.internal.operators;

import rx.Observable.Operator;
import rx.Subscriber;
import rx.observers.SerializedSubscriber;

public final class OperatorSerialize implements Operator {
    /** Lazy initialization via inner-class holder. */
    static final class Holder {
        /** A singleton instance. */
        static final OperatorSerialize INSTANCE = new OperatorSerialize();
    }
    /**
     * @param  the value type
     * @return a singleton instance of this stateless operator.
     */
    @SuppressWarnings({ "unchecked" })
    public static  OperatorSerialize instance() {
        return (OperatorSerialize)Holder.INSTANCE;
    }
    
    OperatorSerialize() { 
        // singleton
    }
    
    @Override
    public Subscriber call(final Subscriber s) {
        return new SerializedSubscriber(new Subscriber(s) {

            @Override
            public void onCompleted() {
                s.onCompleted();
            }

            @Override
            public void onError(Throwable e) {
                s.onError(e);
            }

            @Override
            public void onNext(T t) {
                s.onNext(t);
            }

        });
    }

}
    
    
    
    

    




    
    
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