使用EntityManager时将分离的实体传递给Pesist

Question

I Have two entity's mapped with one to many relationship.I am persist two objects In Database with Id 1,2

with same type

scenario 1. I am Trying to remove Id '1' with getEntityManager.remove(object1) its show the

detached entity passed to persist for Child entity..even DB record found.

scenario 2. when I am Trying to remove Id '2' with getEntityManager.remove(object2) its deleting the record 2 .

this Exception occur only for before enter record with same time.

after I am close and re open the page I am remove the ID 1,2 from Db its successfully worked.

Answer 1

com.manam.mobee.persist.entity.MobeeLabelTemplate#null

Inspect the mobeeLabel.getMobeeLabelTemplates() inside the deleteLabel() and make sure they have the id .

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Edit:

You need the id in the objects to update and delete. Before deleting mobeeLabel, perform a findById and then remove it. There should be some non-inserted mobeeLabelTemplates (or not updated - ids out of sync with the db). Try something like this:

MobeeLabel freshMobeeToDelete = (MobeeLabel) getEntityManager().find(MobeeLabel.class, mobeeLabel.getId());
getEntityManager().remove(freshMobeeToDelete);