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    • rx.internal.operators.OperatorIgnoreElements 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;

public class OperatorIgnoreElements implements Operator {

    static final class Holder {
        static final OperatorIgnoreElements INSTANCE = new OperatorIgnoreElements();
    }

    @SuppressWarnings("unchecked")
    public static  OperatorIgnoreElements instance() {
        return (OperatorIgnoreElements) Holder.INSTANCE;
    }

    OperatorIgnoreElements() {
        // singleton
    }

    @Override
    public Subscriber call(final Subscriber child) {
        Subscriber parent = new Subscriber() {

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

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

            @Override
            public void onNext(T t) {
                // ignore element
            }

        };
        child.add(parent);
        return parent;
    }

}
    
    
    
    

    




    
    
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