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Session: How to Evict Single Entity from a Session
We can clear all session operations and stop tracking of all entities by the using clear method, but sometimes there is need to only to do a cleanup only for one entity. For this purpose
evict was introduced.
<T> void evict(T entity);
|entity||T||Instance of an entity that will be evicted|
Employee employee1 = new Employee(); employee1.setFirstName("John"); employee1.setLastName("Doe"); Employee employee2 = new Employee(); employee2.setFirstName("Joe"); employee2.setLastName("Shmoe"); session.store(employee1); session.store(employee2); session.advanced().evict(employee1); session.saveChanges(); // only 'Joe Shmoe' will be saved
Employee employee = session.load(Employee.class, "employees/1-A");//loading from serer employee = session.load(Employee.class, "employees/1-A"); // no server call session.advanced().evict(employee); employee = session.load(Employee.class, "employees/1-A"); // loading form server