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unidirection @OneToOne+FetchType.LAZY not working [message #1805352]

Fri, 12 April 2019 09:57

Evan Huang

Messages: 1
Registered: April 2019

Junior Member

Hi,
I have got some problem with this when I try using unidirectional @OneToOne and FetchType = Lazy like a blow , the result is unexpected
Order table:
@OneToOne(fetch=FetchType.LAZY, cascade = CascadeType.ALL)
@JoinColumn(name="ORDER_DETAIL_ID")
private OrderDetail orderDetail;

after I query the data of Order, OrderDatil's data query auto. Does anyone know this issue? or is there any example?

Thanks a lot

[Updated on: Tue, 16 April 2019 01:35]

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Re: unidirection @OneToOne+FetchType.LAZY not working [message #1805885 is a reply to message #1805352]

Fri, 26 April 2019 14:17

Chris Delahunt

Messages: 1330
Registered: July 2009

Senior Member

Not sure exactly what you mean, are you saying that lazy on a OneToOne and other non-collection type mappings isn't working, or is it only this one uni-directional oneToOne mapping? Is the query happening while the order instance is being built and before it is returned from the query, or is something triggering it after?

First guess is that you might not have enabled weaving/bytecode enhancement which is required for lazy non-collection type mappings. See https://www.eclipse.org/eclipselink/documentation/2.4/concepts/app_dev007.htm for details.

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