Well, I think you mean DuplicatorFilterVisitor.
But: I don't know, how to use it...

There is no method to copy a Filter...

Or is...

DuplicatorFilterVisitor dfv = new DuplicatorFilterVisitor(ff);
dfv.visit( myFilter );
Filter filterCopy = (Filter)dfv.copy( myFilter );

... the way?


Justin Deoliveira schrieb:
> Hi Martin,
> 
> Check out the org.geotools.filter.visitor.DuplicatingFilterVisitor
> class. That should do the trick for you.
> 
> -Justin
> 
> Martin Schmitz wrote:
>> Hello everybody,
>>
>> is there a method to clone a Filter object?
>>
>> I "prepare" a Filter and apply it to several FeatureSources.
>> Thereby I recognized, that sometimes also the results of FURTHER created 
>> sub-collections changes, when changing the expressions of the Filter object!
>>
>> For several reasons I can not recreate the complete Filter before 
>> calling FeatureSource.getFeatures( filter ). At the calling point my 
>> program doesn't have any information about the filer.
>> So the easiest way seems to be to clone the given filter object.
>> But how?
>>
>> Thanks for help...
>>
>> Martin
>>
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> 

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