herefelement is the final element inside a<constructor-arg/>or<property/>definition

element. Here you set the value of the specified property of a bean to be a reference to another bean (a

collaborator) managed by the container. The referenced bean is a dependency of the bean whose property

will be set, and it is initialized on demand as needed before the property is set. (If the collaborator is a

singleton bean, it may be initialized already by the container.) All references are ultimately a reference to

another object. Scoping and validation depend on