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From Michael Gentry <>
Subject Re: Convert Oracle Type NUMBER to java.lang.Boolean
Date Mon, 22 Apr 2013 12:40:13 GMT
Hi Markus,

I've always found booleans to be a little odd to work with, especially when
you have allows null.  You could always define your own TRUE/FALSE enum (or
ExtendedEnumeration) as 1 and 0 respectively and then do:


Keep in mind if your deleted property allows nulls, though, then false !=


On Mon, Apr 22, 2013 at 4:51 AM, Markus Reich

> Hi,
> I've a problem with using boolean values in my cayenne class.
> In Oracle DB the field has type NUMBER and contains only 0 or 1 as value.
> Now I thought I can map this to a Boolean?
> I came to this because it also works when I select with an Expression:
> ExpressionFactory.matchExp(MiiPickingcontainer.DELETED_PROPERTY, false));
> But when I make a check with getDeleted()==false, it doesn't work as
> getDeleted() always returns false?
> What would be the best approach to transform a Oracle NUMBER to a Boolean?
> Markus

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