org.apache.bookkeeper.client.SpeculativeRequestExecutor Maven / Gradle / Ivy
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*
* Licensed to the Apache Software Foundation (ASF) under one
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* to you 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,
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*/
package org.apache.bookkeeper.client;
import com.google.common.util.concurrent.ListenableFuture;
/**
* Define an executor for issuing speculative requests.
*
* If the implementation can issue a speculative read, it should return true
* to indicate a speculative request should be issued. Otherwise, return false.
*
* @since 4.5
*/
public interface SpeculativeRequestExecutor {
/**
* Issues a speculative request and indicates if more speculative
* requests should be issued.
*
* @return whether more speculative requests should be issued
*/
ListenableFuture issueSpeculativeRequest();
}