i have a complicated object with a large number of children, each child
possibly having their own large number of children. what would be great
in OpenJPA is if you could, say, detach an object and run a command
which would null all @Id and @Version fields in the detached Object and
all its descendants. i suppose it has to be done manually though...
On 27/07/18 15:52, Albert Lee wrote:
If the java object implements Serializable or Clonable, you can
writeObject/readObject to clone to a new entity. The new object will be
detached and you can reset the id and version as you wish.
On Fri, Jul 27, 2018 at 8:39 AM, Matthew Broadhead <
matthew.broadh...@nbmlaw.co.uk.invalid> wrote:
i don't think it would clear the id and version fields? do you mean using
SerializationUtils clone?
https://commons.apache.org/proper/commons-lang/apidocs/org/
apache/commons/lang3/SerializationUtils.html
On 27/07/18 15:09, Albert Lee wrote:
If the entity is serializable have you try writing it out and read it back
to a new object?
On Fri, Jul 27, 2018, 6:05 AM Matthew Broadhead
<matthew.broadh...@nbmlaw.co.uk.invalid> wrote:
is there a way to deep clone a JPA object automatically? i.e. to copy
all the parameters and children but clear the id and version fields?
i saw that it is possible to do em.detach(object); and then reset the id
and version but by the time i have done that i may as well have written
a full copy function.
