why do hibernate session provide optinal method for developers to decide whether cache the object in order to improve the performance of bulk operation ----------------------------------------------------------------------------------------------------------------------------------------------------------- Key: HHH-1155 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1155 Project: Hibernate Core Issue Type: New Feature Components: core Environment: any version Reporter: Rock Tian Attachments: sample .txt Original Estimate: 8h Remaining Estimate: 8h when we process bulk operation such as save or find,the Session will cache the object,but you will find that it will cosume too much memory and result in "..out of memory".provided we can decide whether to cache the object when use the method,and don'nt cache the object,it will be no problem.if don'nt ,we have to evict object in every while,JVM will become stableless and the speed of operation is slow.