/*
* Copyright 2012-2017 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
*
* 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 org.springframework.boot.devtools.restart;
import java.net.URL;
/**
* Strategy interface used to initialize a {@link Restarter}.
*
* @author Phillip Webb
* @since 1.3.0
* @see DefaultRestartInitializer
*/
@FunctionalInterface
public interface RestartInitializer {
/**
* {@link RestartInitializer} that doesn't return any URLs.
*/
RestartInitializer NONE = new RestartInitializer() {
@Override
public URL[] getInitialUrls(Thread thread) {
return null;
}
};
/**
* Return the initial set of URLs for the {@link Restarter} or {@code null} if no
* initial restart is required.
* @param thread the source thread
* @return initial URLs or {@code null}
*/
URL[] getInitialUrls(Thread thread);
}