Examples of org.apache.cayenne.access.DataContext.deleteObjects()

org.apache.cayenne.access.DataContext.deleteObjects()

Schedules all objects in the collection for deletion on the next commit of this DataContext. Object's persistence state is changed to PersistenceState.DELETED; objects related to this object are processed according to delete rules, i.e. relationships can be unset ("nullify" rule), deletion operation is cascaded (cascade rule).

"Nullify" delete rule side effect: passing a collection representing to-many relationship with nullify delete rule may result in objects being removed from collection.

@since 1.2


                SelectQuery query = new SelectQuery(Customer.class);
                List<Customer> list = dataContext.performQuery(query);


                if (list.size() < 60) {
                    dataContext.deleteObjects(list);


                    loadCustomers(dataContext);


                    dataContext.commitChanges();
                }


                SelectQuery query = new SelectQuery(Customer.class);
                List list = dataContext.performQuery(query);


                if (list.size() < 60) {
                    dataContext.deleteObjects(list);


                    loadCustomers(dataContext);


                    dataContext.commitChanges();
                }


                SelectQuery query = new SelectQuery(Customer.class);
                List<Customer> list = dataContext.performQuery(query);


                if (list.size() < 60) {
                    dataContext.deleteObjects(list);


                    loadCustomers(dataContext);


                    dataContext.commitChanges();
                }

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