org.springframework.scheduling.annotation.AsyncConfigurer Maven / Gradle / Ivy
/*
* Copyright 2002-2017 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
*
* 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.scheduling.annotation;
import java.util.concurrent.Executor;
import org.springframework.aop.interceptor.AsyncUncaughtExceptionHandler;
import org.springframework.lang.Nullable;
/**
* Interface to be implemented by @{@link org.springframework.context.annotation.Configuration
* Configuration} classes annotated with @{@link EnableAsync} that wish to customize the
* {@link Executor} instance used when processing async method invocations or the
* {@link AsyncUncaughtExceptionHandler} instance used to process exception thrown from
* async method with {@code void} return type.
*
* Consider using {@link AsyncConfigurerSupport} providing default implementations for
* both methods if only one element needs to be customized. Furthermore, backward compatibility
* of this interface will be insured in case new customization options are introduced
* in the future.
*
*
See @{@link EnableAsync} for usage examples.
*
* @author Chris Beams
* @author Stephane Nicoll
* @since 3.1
* @see AbstractAsyncConfiguration
* @see EnableAsync
* @see AsyncConfigurerSupport
*/
public interface AsyncConfigurer {
/**
* The {@link Executor} instance to be used when processing async
* method invocations.
*/
@Nullable
default Executor getAsyncExecutor() {
return null;
}
/**
* The {@link AsyncUncaughtExceptionHandler} instance to be used
* when an exception is thrown during an asynchronous method execution
* with {@code void} return type.
*/
@Nullable
default AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler() {
return null;
}
}