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.*;


Represents a basic, non-backpressured Observable source base interface, consumable via an Observer. 
Type parameters:
  • <T> – the element type
Since:2.0
/**
 * Represents a basic, non-backpressured {@link Observable} source base interface,
 * consumable via an {@link Observer}.
 *
 * @param <T> the element type
 * @since 2.0
 */
public interface ObservableSource<T> {

    
Subscribes the given Observer to this ObservableSource instance.

Params:
  • observer – the Observer, not null
Throws:
/**
     * Subscribes the given Observer to this ObservableSource instance.
     * @param observer the Observer, not null
     * @throws NullPointerException if {@code observer} is null
     */
    void subscribe(@NonNull Observer<? super T> observer);
}