io.micronaut.context.annotation.Bean Maven / Gradle / Ivy
/*
* Copyright 2017-2020 original 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 io.micronaut.context.annotation;
import static java.lang.annotation.RetentionPolicy.RUNTIME;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;
/**
* Annotation used to configure a bean. Typically used in conjunction with {@link Factory}.
*
*
* @Factory
* public class MyFactory {
*
* @Bean
* public MyBean myBean() {
* // create the bean
* }
* }
*
* @see Factory
* @author Graeme Rocher
* @since 1.0
*/
@Documented
@Retention(RUNTIME)
@Target({ElementType.METHOD, ElementType.ANNOTATION_TYPE, ElementType.TYPE, ElementType.FIELD})
public @interface Bean {
/**
* @return The method to invoke to destroy the bean
*/
String preDestroy() default "";
/**
* @return Limits the types exposed by this been to the given type or types.
* @since 3.0.0
*/
Class[] typed() default {};
}