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Null Property persisted with value Zero [message #639638]

Wed, 17 November 2010 10:15

Mauro Flores

Messages: 84
Registered: September 2009
Location: Brasil

Member

Is there a way to configure eclipselink in order to persist numeric properties with content NULL as column with value ZERO ?
That's a requirement of a legacy database/application.

Thanks, Mauro.

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Re: Null Property persisted with value Zero [message #639981 is a reply to message #639638]

Thu, 18 November 2010 15:35

James Sutherland

Messages: 1939
Registered: July 2009
Location: Ottawa, Canada

Senior Member

The easiest way is to just change your object's type to a primitive, i.e. int instead of Integer, then it will never be null, or default the value in your constructor.

You could also configure a conversion for the specific mapping using a Converter. Or you could enable it for all mappings using a default null value for the type.

In a SessionCustomizer you can set the default null value,
i.e.

session.getLogin().setDefaultNullValue(Integer.class, 0);

James : Wiki : Book : Blog : Twitter

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