binder-snippets-1.java

package io.reactivex;

import io.reactivex.annotations.*;

/**
 * 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.
     * @param observer the Observer, not null
     * @throws NullPointerException if {@code observer} is null
     */
    void subscribe(@NonNull Observer<? super T> observer);
}