org.apache.rocketmq.shaded.ch.qos.logback.core.sift.Discriminator Maven / Gradle / Ivy
/**
* Logback: the reliable, generic, fast and flexible logging framework.
* Copyright (C) 1999-2015, QOS.ch. All rights reserved.
*
* This program and the accompanying materials are dual-licensed under
* either the terms of the Eclipse Public License v1.0 as published by
* the Eclipse Foundation
*
* or (per the licensee's choosing)
*
* under the terms of the GNU Lesser General Public License version 2.1
* as published by the Free Software Foundation.
*/
package org.apache.rocketmq.shaded.ch.qos.logback.core.sift;
import org.apache.rocketmq.shaded.ch.qos.logback.core.spi.LifeCycle;
/**
* Implement this interface in order to compute a discriminating value for a
* given event of type <E>.
*
* The returned value can depend on any data available at the time of the
* call, including data contained within the currently running thread.
*
* @author Ceki Gülcü
*
* @param
*/
public interface Discriminator extends LifeCycle {
/**
* Given event 'e' return a discriminating value.
*
* @param e
* @return
*/
String getDiscriminatingValue(E e);
/**
* The key or variable name under which the discriminating value should be
* exported into the host environment.
*
* @return
*/
String getKey();
}