Open-Session-In-View

<br /><br /> <filter><br /> <filter-name>hibernateFilter</filter-name><br /> <filter-class><br /> org.springframework.orm.hibernate3.support.OpenSessionInViewFilter<br /> </filter-class><br /> <init-param><br /> <param-name>singleSession</param-name><br /> <param-value>true</param-value><br /> </init-param><br /><br /> <filter-mapping><br /> <filter-name>hibernateFilter</filter-name><br /> <url-pattern>/*</url-pattern><br /> </filter-mapping><br /><br />

Servlet 2.3 Filter that binds a Hibernate Session to the thread for the entire processing of the request. Intended for the "Open Session in View" pattern, i.e. to allow for lazy loading in web views despite the original transactions already being completed.

NOTE: This filter will by default not flush the Hibernate Session, with the flush mode set to FlushMode.NEVER. It assumes to be used in combination with service layer transactions that care for the flushing: The active transaction manager will temporarily change the flush mode to FlushMode.AUTO during a read-write transaction, with the flush mode reset to FlushMode.NEVER at the end of each transaction. If you intend to use this filter without transactions, consider changing the default flush mode (through the "flushMode" property).