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package top.lshaci.framework.web.service;

/**
 * This use for get, set, remove the submit key


 *
 * 1.0.7:This method getAndSet add parameter timeout
 *
 * @author lshaci
 * @since 1.0.5
 * @version 1.0.9
 */
public interface PreventRepeat {

    String VALUE = "true";

    /**
     * 判断 key 是否存在
     *
     * @param key the submit key
     * @param timeout the operation timeout
     * @return the last value; if null, is the first submit
     */
    boolean exists(String key, long timeout);

    /**
     * Remove the value of the submit key
     *
     * @param key  the submit key
     */
    void remove(String key);
}