Is there a spring property to lazy-init all beans that spring framework loads ?
I know about these properties
- lazy-init="true"
- default-lazy-init="true"
however there are multiple spring config xml files and some are packaged within jar so dont have liberty to change neither <bean> nor <beans> tag.
Any other way to tackle this via configuration ? or programatically ?
Short of extending the Spring bean loader, none that I know of.
You caN also use @Lazy annotation, but it is the same as you mentioned above.
According to java doc this should work ( though it looks not nice)
if (context.getBeanFactory() instanceof DefaultListableBeanFactory)
{
((DefaultListableBeanFactory) context.getBeanFactory()).setAllowEagerClassLoading(false);
}
I've implemented this on my company, had to extend some classes of spring tough. It wasn't easy, but we gained about 20s on every tomcat startup. Unfortunately, for privacy clauses, I can't show the code, but take a look at ClassPathBeanDefinitionScanner,DefaultBeanDefinitionDocumentReader,ContextNamespaceHandler and ComponentScanBeanDefinitionParser classes.
Starting with Spring Boot 2 you can use the spring.main.lazy-initialization property to configure lazy initialization across the whole application.
Setting the property value to true means that all the beans in the application will use lazy initialization.
in application.yaml
spring:
main:
lazy-initialization: true
or in application.properties
spring.main.lazy-initialization=true
