org.springframework.core.PriorityOrdered Maven / Gradle / Ivy
/*
* Copyright 2002-2015 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.core;
/**
* Extension of the {@link Ordered} interface, expressing a priority
* ordering: order values expressed by {@code PriorityOrdered} objects
* always apply before same order values expressed by plain
* {@link Ordered} objects.
*
* This is primarily a special-purpose interface, used for objects where
* it is particularly important to recognize prioritized objects
* first, without even obtaining the remaining objects. A typical example:
* prioritized post-processors in a Spring
* {@link org.springframework.context.ApplicationContext}.
*
*
Note: {@code PriorityOrdered} post-processor beans are initialized in
* a special phase, ahead of other post-processor beans. This subtly
* affects their autowiring behavior: they will only be autowired against
* beans which do not require eager initialization for type matching.
*
* @author Juergen Hoeller
* @since 2.5
* @see org.springframework.beans.factory.config.PropertyOverrideConfigurer
* @see org.springframework.beans.factory.config.PropertyPlaceholderConfigurer
*/
public interface PriorityOrdered extends Ordered {
}