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[protege-discussion] empty frame value
tar at ISI.EDU
Thu Jun 19 12:11:56 PDT 2008
On Jun 19, 2008, at 10:45 AM, Len Yabloko wrote:
> For example, if some algorithm implemented with Protege API needs to
> decide when some slot value can be overwritten. The rule could be:
> if value was never set, then it can be set only once, next time it
> can not be set until it is reset to 'empty'. Normally setting value
> to null would do that, but Protege does not allow it (I get
> Assertion when set slot value to null).
Try Frame.removeOwnSlotValue instead.
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