java - EclipseLink JPA 2.1 User supplied connection -

i use eclipselink jpa engine. using subclass of java.sql.connection , know if can force eclipselink use connection. set connection object programmatically.

something like

myconnection conn = new myconnection(jdbc_url, usr, pwd); entitymanagerfactory factory = persistence.createentitymanagerfactory(conn); 

you can set custom connection programatically using following code:

map properties = new hashmap();  // configure internal eclipselink connection pool properties.put(jdbc_driver, "oracle.jdbc.oracledriver"); properties.put(jdbc_url, "jdbc:oracle:thin:@localhost:1521:orcl"); properties.put(jdbc_user, "user-name"); properties.put(jdbc_password, "password"); persistence.createentitymanagerfactory("unit-name", properties); 

i found answer here after quick google search:

http://eclipse.1072660.n5.nabble.com/defining-persistence-xml-programatically-td2536.html

i dont believe there way force eclipselink connect using java.sql.connection; not out of box @ least. make simple utility method pass in said connection , build properties map described above.

public map convertconnectiontoproperties(connection conn) {     // mapping      return themap; } 

if take @ this link see

persistence.java

createentitymanagerfactory(string persistenceunitname)  createentitymanagerfactory(string persistenceunitname, map properties)  

that can take parameters. put; asking isn't possible without taking connection object , adjust return complies createentitymanagerfactory can take in.

class myconnection {      // code here      public map converttomap() {         // mapping          return themap;     }      public string getpersistenceunitname() {         return "some-name";     } } 

and utilize this:

myconnection conn = new myconnection(jdbc_url, usr, pwd); entitymanagerfactory factory = persistence.createentitymanagerfactory(conn.getpersistenceunitname(), conn.converttomap());