Externalize Named Queries in JPA

Externalize Named Queries in JPA 

Main XML file 

 
  java:/someDS
  
  META-INF/myproject/sample.xml
        

sample.xml (having named query)

 
  
   SELECT 
    website
   FROM 
    Website website
   WHERE
    website.userId = :userId
  
 
 
  
   ...