Question

Is there a way to externalize HQL named queries to an external file. I have too many named queries and using @NamedQueries and @NamedQuery at the head of my entities classes is hurting.

Is there a way to externalize to several files?

Answer 1

You can put the queries into package-info.java class, in, say, root package of your domain objects. However, you must use Hibernate’s own @NamedQueries and @NamedQuery annotations, rather than those from javax.persistence.

Example package-info.java file:

@org.hibernate.annotations.NamedQueries({     @org.hibernate.annotations.NamedQuery(         name = 'foo.findAllUsers',          query='from Users')  })   package com.foo.domain; 

Then, you have to add the package to your AnnotationConfiguration. I use Spring, so there it’s a matter of setting annonatedPackages property:

<bean id='sessionFactory'  class='org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean'> <property name='annotatedClasses'>       <list>       ...       </list> </property> <property name='annotatedPackages'>   <list>       <value>com.foo.domain</value>   </list> </property> 

You can also put type and filter definitions in the same file as well.