https://github.com/ReactiveX/RxJava: Reactive Extensions for Java
  • David Karnok 
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.

/**
 * 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;

import io.reactivex.annotations.*;
import org.reactivestreams.Publisher;


Interface to compose Flowables.

Type parameters:
  • <Upstream> – the upstream value type
  • <Downstream> – the downstream value type
/**
 * Interface to compose Flowables.
 *
 * @param <Upstream> the upstream value type
 * @param <Downstream> the downstream value type
 */
public interface FlowableTransformer<Upstream, Downstream> {
    
Applies a function to the upstream Flowable and returns a Publisher with
optionally different element type.

Params:
  • upstream – the upstream Flowable instance
Returns:the transformed Publisher instance
/**
     * Applies a function to the upstream Flowable and returns a Publisher with
     * optionally different element type.
     * @param upstream the upstream Flowable instance
     * @return the transformed Publisher instance
     */
    @NonNull
    Publisher<Downstream> apply(@NonNull Flowable<Upstream> upstream);
}