find all the entities

FriedDust · **Posted:** Sun Jan 18, 2009 8:14 am

Dear all,

how can I get all the classes annotated with @Entity?
all I could think of is scan all the classes and check it with isAnnotationPresent().. isnt there any easy way to do this??

-FriedDust

man4j · **Joined:** Fri Jan 09, 2009 4:31 am **Posts:** 9

maybe ...getSessionFactory().getStatistics().getEntityNames() ?

FriedDust · **Posted:** Sun Jan 18, 2009 10:25 am

thanks for the reply man4j.

Im using JPA + Hibernate + Tomcat + Spring
I tried this code,

Code:

Session sess  = ((Session) getJpaTemplate().getEntityManagerFactory().createEntityManager().getDelegate());
            
System.out.println("--< " + sess.getStatistics().getEntityKeys());

it returns an empty set.

I have even set the generate_statistics = true

Code:

<property name="jpaProperties">
      <value>
        hibernate.generate_statistics=true
        hibernate.archive.autodetection=class 
        </value>
    </property>

any help??

FriedDust · **Posted:** Sun Jan 18, 2009 10:31 am

im sorry, i found out the problem.

I did sess.getStatistics() instead of ess.getSessionFactory().getStatistics()

:-)

nimo23 · **Posted:** Sun Jan 18, 2009 11:24 am

all entites are derived from Object-Class:

So you can say in HQL:

"from Object"

(Please rate, I have no points anymore)

FriedDust · **Posted:** Mon Jan 19, 2009 12:08 am

nimo23 wrote:

all entites are derived from Object-Class:

So you can say in HQL:

"from Object"

(Please rate, I have no points anymore)

sorry nimo23,
your code didnt work. it throws org.hibernate.hql.ast.QuerySyntaxException

nimo23 · **Posted:** Mon Jan 19, 2009 5:15 am

do this HQL-Query:

"from java.lang.Object o"