Siguenza wrote:
Is it the same with StringArray, FloatArray, StringList...?
No UIMA support for them ?
I was trying to use these defined types but didn't found out how to
use them in AE...
Hi. It is not that there is _no_ UIMA support for FSLists; in fact the
UIMA API gives you all the functionality you need for these structures.
However, it just gives you only the basic capabilities, no complicated
operations like adding a new element to the end of a list (as Thilo
mentioned); if you want to do something more complicated, you need to
code it yourself using the basic capabilities that are included in the
API. For example, if you have a Feature Structure named "mySmurf" that
you want to add to the end of an existing non-empty FSList called
mySmurfs that is in myJcas:
NonEmptyFSList currentSmurfs = (NonEmptyFSList) mySmurfs;
while (!(currentSmurfs.getTail() instanceof EmptyFSList))
currentSmurfs = (NonEmptyFSList) currentSmurfs.getTail();
NonEmptyFSList newSmurfs = new NonEmptyFSList(myJcas);
newSmurfs.setHead(mySmurf);
newSmurfs.setTail(currentSmurfs.getTail());
currentSmurfs.setTail(newSmurfs);
I haven't tested the snippet above so there may be bugs; however, you
can see the basic idea.
For most purposes, it is easier and more efficient to use an FSArray,
especially since the UIMA API's for them have more convenient methods
(see the Javadocs for details). However, if you don't know in advance
how many items your collection will have, an FSArray can be a huge
nuisance because when you add an element you have to create a new
FSArray that's one larger than the previous one and copy everything in
the old one over to the new one. In that case, an FSList may be a
better choice.
