CODEWITHSUNDEEP
javajpapersistence.xml
Jannis Alexakis
Jannis Alexakis

Reputation: 1319

Change values in persistence.xml from within the program

Is it possible to change values in persistence.xml from within the program that is using it ? If yes, i would appreciate some hints or/and links to read.

Upvotes: 1

Views: 1515

Answers (2)

Bart van Heukelom
Bart van Heukelom

Reputation: 44084

Yes

    // connect to database
    log.info("Connecting to database @ " + dbUrl + " using " + dbUser + "/" + dbPass);
    emf = Persistence.createEntityManagerFactory("manager", Maps.create(
            "javax.persistence.jdbc.user", dbUser,
            "javax.persistence.jdbc.password", dbPass,
            "javax.persistence.jdbc.url", dbUrl
    ));

Upvotes: 4

DataNucleus
DataNucleus

Reputation: 15577

not part of jpa spec, so no. some implementations may allow some updates ... e.g dayanucleus http://www.datanucleus.org/products/accessplatform_3_0/jpa/persistence_unit.html but what do u want to change?

Upvotes: 0

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