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;

Represents the options for applying backpressure to a source sequence.
/**
 * Represents the options for applying backpressure to a source sequence.
 */
public enum BackpressureStrategy {
    
OnNext events are written without any buffering or dropping.
Downstream has to deal with any overflow.
Useful when one applies one of the custom-parameter onBackpressureXXX operators.
/**
     * OnNext events are written without any buffering or dropping.
     * Downstream has to deal with any overflow.
     * <p>Useful when one applies one of the custom-parameter onBackpressureXXX operators.
     */
    MISSING,
    
Signals a MissingBackpressureException in case the downstream can't keep up.
/**
     * Signals a MissingBackpressureException in case the downstream can't keep up.
     */
    ERROR,
    
Buffers all onNext values until the downstream consumes it.
/**
     * Buffers <em>all</em> onNext values until the downstream consumes it.
     */
    BUFFER,
    
Drops the most recent onNext value if the downstream can't keep up.
/**
     * Drops the most recent onNext value if the downstream can't keep up.
     */
    DROP,
    
Keeps only the latest onNext value, overwriting any previous value if the
downstream can't keep up.
/**
     * Keeps only the latest onNext value, overwriting any previous value if the
     * downstream can't keep up.
     */
    LATEST
}