标准与脱附标准有何区别? 我们何时应该达到标准,何时应该达到脱节的标准?
I am facing a weird problem and it seems to be c3p0 related. I am starting two instances of an app in the same java vm which interact with each other. After some operations "APPARENT DEADLOCK" ...
标准与脱附标准有何区别? 我们何时应该达到标准,何时应该达到脱节的标准?
。 允许你在没有<条码>的条码>的情况下创建查询。 然后,你可以任意进行搜查。
事实上,你在使用<条码>后附标准条码>时,应仔细考虑使用另一届或新的届会(无声和届会的设立)。
它们对于加入条件、次选举和在本届会议之外进行询问最为有用。
另一种共同使用是重新使用代码。 许多开发商宣布它们为static
。 查询并使用不同的<代码>DAO加以执行。
采用《标准》与标准完全相同,但你可以在没有机会出席本届会议的情况下,初步确定和确定你的询问。 当问询时间到来时,你必须将其转换成一个可执行的查询系统:getExecutableCriteria(session)
。
如果你提出复杂的问题,可能的话,通过多步骤的进程,这样做是有用的,因为你不需要进入任何地方的会议。 在你处理问题时,你只需要会议的最后一步。
在座右边,德塔兰克谢斯使用标准表,如果你打电话<条码>,则采用相同的等级。
-Detached criteria is very good alternate when the hibernate session is not present.
- 标准是在线的,这意味着它使用届会类别物体。 但是,由于doesn t需要一个会议,因此离散的标准是站不住脚的。
-Then the detach criteria allow code reusability.
public static void main(String [] args) throws Exception {
AnnotationConfiguration cfg = new AnnotationConfiguration();
cfg.configure("hibernate.cfg.xml");
SessionFactory factory = cfg.buildSessionFactory();
Session session = factory.openSession();
System.out.println("By using criteria");
Criteria cr=session.createCriteria(Student.class);
cr.add(Restrictions.eq("gender", "male"));
cr.addOrder(Order.asc("stud_id"));
List<Student> res=((Criteria) cr).list();
for(int i=0;i<res.size();i++)
{
System.out.print( res.get(i).getStud_id()+" ");
System.out.println(res.get(i).getName());
}
System.out.println("
By using Detached criteria");
DetachedCriteria dcr = DetachedCriteria.forClass(Student.class).add(Property.forName("gender").eq("male"));
dcr.addOrder(Order.desc("stud_id"));
List<Student> results = dcr.getExecutableCriteria(session).list();
for(int i=0;i<results.size();i++)
{
System.out.print( results.get(i).getStud_id()+" ");
System.out.println(results.get(i).getName());
}
I am facing a weird problem and it seems to be c3p0 related. I am starting two instances of an app in the same java vm which interact with each other. After some operations "APPARENT DEADLOCK" ...
We can speed up a hibernate app easyly with 2nd level cache using infinispan or ehcache/terracotta,... but ibatis only have a simple interface to implement for caching. And hibernate knows more ...
I m relatively new to hibernate and was wondering if someone could help me out. While I have no issues implementing a normal join on multiple columns in hibernate using the @JoinColumns tag, I m ...
I have a 2 entities in a One-To-Many relationship: OfficeView.java: public class OfficeView implements java.io.Serializable { private Integer officeId; private String addr1; private ...
I wrote a Hibernate interceptor : public class MyInterceptor extends EmptyInterceptor { private boolean isCanal=false; public boolean onSave(Object entity, Serializable arg1, Object[] arg2, String[]...
Methods invoked: 1. Struts Action 2. Service class method (annotated by @Transactional) 3. Xfire webservice call Everything including struts (DelegatingActionProxy) and transactions is configured ...
I have an integration test in my Grails application that fails when I try to save an entity of type Member invitingMember.save(flush: true) This raises the following exception org.hibernate....
Is it possible to implement the following query using Criteria API? select order from ORDER as order,ITEM as item where item.itemID like ITM_01 and item in elements(order.items)