com.alipay.sofa.ark.spi.service.PriorityOrdered Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file 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, 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 com.alipay.sofa.ark.spi.service;
/**
* {@code PriorityOrdered} is an interface that can be implemented by objects that
* should be ordered.
*
* @author qilong.zql
* @since 0.4.0
*/
public interface PriorityOrdered {
/**
* Useful constant for the highest precedence value.
* @see java.lang.Integer#MIN_VALUE
*/
int HIGHEST_PRECEDENCE = Integer.MIN_VALUE;
/**
* Useful constant for the lowest precedence value.
* @see java.lang.Integer#MAX_VALUE
*/
int LOWEST_PRECEDENCE = Integer.MAX_VALUE;
/**
* Default priority
*/
int DEFAULT_PRECEDENCE = 100;
/**
* Get the order value of this object. Higher values are interpreted as lower
* priority. As a consequence, the object with the lowest value has the highest
* priority.
* @return
*/
int getPriority();
}