Skip to:

  1. Skip to Jira Navigation
  2. Skip to Side Navigation
  3. Skip to Main Content

Accessing collection of children in ILifecycle.OnLoad, session.Merge results in "illegal access to loading collection"

Description

An entity implements ILifecycle. In OnLoad, it accesses a collection of child entities (eg. with foreach). Usually this works, because OnLoad is called after initializing everything.

Except when calling session.Merge on the detached entity. Then it results in

NHibernate.LazyInitializationException : illegal access to loading collection

The same happens when registering a PostLoad event handler that accesses the children. It was just easier to reproduce with ILifecycle.

I created a test that reproduces it. (Should be stored to NHibernate.Test\Classic to work out of the box.)

Environment

None

Attachments

1

Activity

Show:

weggi February 5, 2013 at 11:56 AM

I have the same problem.
When I build the relation for one-to-many.I access the children set,it results in NHibernate.LazyInitializationException : illegal access to loading collection.the code is follow:
private void FixupDepartment(Department2 previousValue)
{
if (previousValue != null && previousValue.Persons.Contains(this))
{
previousValue.Persons.Remove(this);
}

if (Department != null)
{
// problem
if (!Department.Persons.Contains(this))
{
Department.Persons.Add(this);
}
if (idDepartment != Department.ID)
{
idDepartment = Department.ID;
}
}
}
when Department access the Persons for it,It will happen.

Details

Assignee

Reporter

Labels

Components

Affects versions

Priority

Who's Looking?

Open Who's Looking?

Created October 26, 2012 at 7:15 AM
Updated February 5, 2013 at 11:56 AM
Who's Looking?