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MissingBackpressureException.java
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/*
* 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.rxjava3.exceptions;
/**
* Indicates that an operator attempted to emit a value but the downstream wasn't ready for it.
*/
public final class MissingBackpressureException extends RuntimeException {
private static final long serialVersionUID = 8517344746016032542L;
/**
* The default error message.
* <p>
* This can happen if the downstream doesn't call {@link org.reactivestreams.Subscription#request(long)}
* in time or at all.
* @since 3.1.6
*/
public static final String DEFAULT_MESSAGE = "Could not emit value due to lack of requests";
/**
* Constructs a MissingBackpressureException without message or cause.
*/
public MissingBackpressureException() {
// no message
}
/**
* Constructs a MissingBackpressureException with the given message but no cause.
* @param message the error message
*/
public MissingBackpressureException(String message) {
super(message);
}
/**
* Constructs a new {@code MissingBackpressureException} with the
* default message {@value #DEFAULT_MESSAGE}.
* @return the new {@code MissingBackpressureException} instance.
* @since 3.1.6
*/
public static MissingBackpressureException createDefault() {
return new MissingBackpressureException(DEFAULT_MESSAGE);
}
}