tak to bohuzel netusim, nemam s timhle praktickou ani teoretickou
zkusenost :(
Ivan Polák wrote:
interceptor je namapovany takto:
<bean id="urlMapping"
class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property name="interceptors">
<list>
<ref bean="openSessionInViewInterceptor"/>
</list>
</property>
<property name="mappings">
....
</property>
</bean>
Tomas Vojtech wrote / napísal(a):
napada me zkusit nastavit singleSession na true
jinak by chtelo upresnit kdy se tento interceptor pouziva, je
naveseny na metody servisnich trid? v pripade ze je naveseny na
volani servisni metody a na kolekci sahate az mimo tu metodu tak bude
session nejspis zavrena
Ivan Polák wrote:
toto pouzivam:
<beans>
<bean name="openSessionInViewInterceptor"
class="org.springframework.orm.hibernate3.support.OpenSessionInViewInterceptor">
<property name="sessionFactory">
<ref bean="sessionFactory"/>
</property>
<property name="singleSession">
<value>false</value>
</property>
</bean>
</beans>
Tomas Vojtech wrote / napísal(a):
V dobe kdy se pokousite ziskat data z kolekce je jiz session
uzavrena a proto to skonci vyjimkou, v pripade webove aplikace by
to melo vyresit pouziti filtru, ktery na zacatku requestu otevre
session a uzavre ji az na konci zpracovani, takze pak je session
otevrena celou dobu zpracovani a nemelo by to padat, v pripade
pouziti springu je mozne pouzit OpenSessionInViewFilter ktery toto
dela
Ivan Polák wrote:
zdravim,
pouzivam hibernate a v objekte A mam List objektov typu B:
@OneToMany(mappedBy = "objektB", fetch = FetchType.LAZY, cascade =
CascadeType.ALL)
@JoinColumn(name = "fk_b_id")
private List<B> objektyB;
ako vidiet hore pouzivam Lazy loading, ked nacitam objekt A:
A objektA = objektAManager.getA(id-cko);
natahujem objekt pomocou funkcie:
getHibernateTemplate().get
teda je jasne ze List objektov premenna objektyB nie je nacitany.
ako dosiahnem nacitanie "dotiahnutie" aj premennych typu List
(pripadne inych collections) v objekte A.
vypisuje to nasledovnu chybu:
org.hibernate.LazyInitializationException: failed to lazily
initialize a collection of role:
com.freightservice.model.Shipper.shipperLicenceCertificateParameters,
no session or session was closed
dakujem
Ivan
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signature database 2886 (20080219) __________
The message was checked by ESET Smart Security.
http://www.eset.com
__________ Information from ESET Smart Security, version of virus
signature database 2886 (20080219) __________
The message was checked by ESET Smart Security.
http://www.eset.com
