Andrea Aime wrote:
> Hi,
> I've written down a first version of the Feature paging + query
> capabilities proposal as a base for further discussion:
> http://docs.codehaus.org/display/GEOTOOLS/Feature+paging+and+Query+capabilities
>
> (If you did not hear about it, it basically tries to add support
> for paging thru features in a datastore and also tries to add
> support for query capabilities as a way to state what parts of
> query are supported, and what aren't).
>
> The proposal is not finalized, thought seems like a good starting
> point for discussion. Please provide feedback.
>
Thanks Andrea that is a very clear write up.
I think the QueryCapabilities class will need an implementation with a
no argument constructor and "setters" allowing implementors set one up.
The setters could be a "single use" if you want; they are only their to
be called once ...
Single use normal java beans setter:
> class QueryCapabilities {
> Boolean isReprojectionSupported = null;
> public QueryCapabilities(){
> }
> public boolean isReprojectionSupported(){
> return isReprojectionSupported != null && isReprojectionSupported;
> }
> public void setReprojectionSupported(boolean isSupported ){
> if( isReprojectionSupported != null ) throw new IllegalStateException();
> isReprojectionSupported = isSupported;
> }
> ...
> }
>
Or "set"
class QueryCapabilities {
boolean isReprojectionSupported = false;
public QueryCapabilities(){
}
public boolean isReprojectionSupported(){
return isReprojectionSupported;
}
public boolean isReprojectionSupported(){
return isReprojectionSupported != null && isReprojectionSupported;
}
public void setReprojectionSupported(){
isReprojectionSupported = true;
}
...
}
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