Micronaut中的自定义作用域

import io.micronaut.context.scope.CustomScope;
import io.micronaut.inject.BeanDefinition;
import jakarta.inject.Singleton;

import java.lang.annotation.Annotation;
import java.util.HashMap;
import java.util.Map;

public class CustomScopeImpl implements CustomScope<CustomScopeAnnotation> {

    private Map<String, Object> scopedObjects = new HashMap<>();

    @Override
    public Class<? extends Annotation> getAnnotationType() {
        return CustomScopeAnnotation.class;
    }

    @Override
    public <T> T getScopedObject(BeanDefinition<T> beanDefinition, BeanCreation<T> beanCreation) {
        String beanName = beanDefinition.getBeanType().getName();
        return (T) scopedObjects.computeIfAbsent(beanName, key -> beanCreation.create(beanDefinition));
    }

    @Override
    public <T> T removeScopedObject(BeanDefinition<T> beanDefinition) {
        String beanName = beanDefinition.getBeanType().getName();
        return (T) scopedObjects.remove(beanName);
    }
}

import jakarta.inject.Singleton;

@CustomScopeAnnotation
@Singleton
public class MyScopedBean {
    // ...
}