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Spring Retry provides an abstraction around retrying failed operations, with an emphasis on declarative control of the process and policy-based behaviour that is easy to extend and customize. For instance, you can configure a plain POJO operation to retry if it fails, based on the type of exception, and with a fixed or exponential backoff.

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/*
 * Copyright 2006-2007 the original author or authors.
 *
 * 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
 *
 *      https://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 org.springframework.retry.backoff;

/**
 * A interface which can be mixed in by {@link BackOffPolicy}s indicating that they sleep
 * when backing off.
 *
 * @param  the type of the policy itself
 */
public interface SleepingBackOffPolicy> extends BackOffPolicy {

	/**
	 * Clone the policy and return a new policy which uses the passed sleeper.
	 * @param sleeper Target to be invoked any time the backoff policy sleeps
	 * @return a clone of this policy which will have all of its backoff sleeps routed
	 * into the passed sleeper
	 */
	T withSleeper(Sleeper sleeper);

}