hibernate Lazy strategy can be used in:
<class> tag, it can be true / false
Tags can <PROPERTY> values true / false type of necessary tools to enhance <set> <list> can tag values true / false / extra
<many-to-one> <one-to-one> can be single-ended correlation values false / proxy / noproxy

lazy concept:
Only when the real object will be required to create the object, for hibernate, only really want to use Sql time before issuing the statement
Hibernate support lazy strategy session open only in the state, in order to ensure that the lazy strategy Hibernate application of OpenSessionInView model put forward in the spring in the spring, we give an implementation OpenSessionInViewFilter
<class> tag on the lazy strategy does not affect the characteristics of a collection of lazy, nor will it affect the <many-to-one>
<one-one-one> single-ended correlation on the lazy, it will only affect the general property