although you already respond with an ok.
i just want underline what Martin said, because a list has much more 
features. and i guess alsmost everybody uses these nice features?

But It may be possible to add a second method - if one prefers to get a 
collection :)

stefan

Sunburned Surveyor schrieb:
> O.K.
> 
> SS
> 
> On 4/27/07, *Martin Davis* <[EMAIL PROTECTED] 
> <mailto:[EMAIL PROTECTED]>> wrote:
> 
>     SS,
> 
>     It's easy to change the FC interface methods return value from List to
>     Collection n the JUMP CVS codebase.
> 
>     But you risk breaking a lot of external plugins which have been coded to
>     the current interface.  I don't really see a pressing need to do this,
>     so I would vote against it.
> 
>     Sunburned Surveyor wrote:
>      > Martin,
>      >
>      > This makes perfect sense. Thank you for the clarification. If no one
>      > has an objection I will make a not of it in the Javadoc API. I might
>      > also see if I can refactor the FeatureCollection interface to use
>      > java.util.Collection on the other two methods. This will give me some
>      > practice with Refactoring. (I won't commit these changes to the CVS
>      > until I know it works and I've had a chance to talk to the other
>      > developers.)
>      >
>      > SS
>      >
>      > On 4/27/07, *Martin Davis* <[EMAIL PROTECTED]
>     <mailto:[EMAIL PROTECTED]>
>      > <mailto:[EMAIL PROTECTED]
>     <mailto:[EMAIL PROTECTED]>>> wrote:
>      >
>      >     The fact that getFeatures and query return a List is probably an
>      >     undesirable widening of the API.  For maximum flexibility for
>      >     implementors, they should all return Collection.  This was
>     just an
>      >     oversight in the original design.
>      >
>      >     The reason that remove(Envelope) returns a collection of the
>     removed
>      >     features while the others don't is that in the other two
>     methods the
>      >     caller already knows which features are the ones which are to be
>      >     removed.  In the case of remove(Envelope) the only way to know
>      >     what has
>      >     happened is to get the method to report which features it
>     removed.
>      >
>      >     Sunburned Surveyor wrote:
>      >     > I've been working on my FeatureCache and I've got a couple of
>      >     > questions about the FeatureCollection interface.
>      >     >
>      >     > Three of the methods of the interface return instances of
>      >     > java.util.Collection. The getFeatures() method and the query()
>      >     methods
>      >     > return instances of java.util.List, while the remove() method
>      >     returns
>      >     > an instance that implements the java.util.Collection
>     interface. I am
>      >     > wondering why these three methods don't consistently return
>      >     instances
>      >     > of java.util.List or instances of java.util.Collection. Why
>     is the
>      >     > return value of the remove() method different from the
>     other two
>      >     methods?
>      >     >
>      >     > I also noted that there are three methods that perform
>     removal of
>      >     > Feature objects from the FeatureCollection, but only one of
>     these
>      >     > methods, the remove(Envelope env) method, returns the Feature
>      >     objects
>      >     > removed as an instance of java.util.Collection. The
>     remove(Feature
>      >     > feature) method and the removeAll(Collection features)
>     method do
>      >     not
>      >     > return the Features removed. Is there a reason why this
>     behavior is
>      >     > not consistent?
>      >     >
>      >     > I'm just curious. It seems the Vivid Solutions team always had
>      >     reasons
>      >     > for doing things that aren't readily apparent because of my
>     lack of
>      >     > programming experience.
>      >     >
>      >     > Thank you an advance for any clarification.
>      >     >
>      >     > The Sunburned Surveyor
>      >     >
>      >    
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>      >     --
>      >     Martin Davis
>      >     Senior Technical Architect
>      >     Refractions Research, Inc.
>      >     (250) 383-3022
>      >
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>     --
>     Martin Davis
>     Senior Technical Architect
>     Refractions Research, Inc.
>     (250) 383-3022
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