Package org.datanucleus.api.jpa

Class JPAReplicationManager

  • public class JPAReplicationManager
extends Object
    Manager to control the replication of objects from one datastore to another. Allow replication of specified objects, or all objects of particular types. Supports a series of properties defining the replication behaviour.

    • Field Detail

      • properties

        protected Properties properties
        Properties defining the replication process.

    • Constructor Detail

      • JPAReplicationManager

        public JPAReplicationManager​(javax.persistence.EntityManagerFactory emf1,
                             javax.persistence.EntityManagerFactory emf2)
        Constructor for replicating between source and target EMF.
        Parameters:
        emf1 - EMF source
        emf2 - EMF target

    • Method Detail

      • setProperty

        public void setProperty​(String key,
                        String value)
        Method to set a property for replication.
        Parameters:
        key - Property key
        value - Property value

      • getProperties

        public Properties getProperties()
        Accessor for the replication properties. Supported properties include
        • datanucleus.replicateObjectGraph - whether we replicate the object graph from an object. if this is set we attempt to replicate the graph from this object. Otherwise just the object and its near neighbours.
        Returns:
        Replication properties

      • getBooleanProperty

        protected boolean getBooleanProperty​(String key)

      • replicate

        public void replicate​(Class... types)
        Method to perform the replication for all objects of the specified types.
        Parameters:
        types - Classes to replicate

      • replicate

        public void replicate​(String... classNames)
        Method to perform the replication for all objects of the specified class names.
        Parameters:
        classNames - Classes to replicate

      • replicate

        public void replicate​(Object... oids)
        Method to perform the replication of the objects defined by the supplied identities.
        Parameters:
        oids - Identities of the objects to replicate

      • replicateInTarget

        protected void replicateInTarget​(Object... detachedObjects)
        Method to replicate the provided detached objects in the target datastore.
        Parameters:
        detachedObjects - The detached objects (from the source datastore)