Return-Path: 
 <user-return-5348-apmail-uima-user-archive=uima.apache.org@uima.apache.org>
X-Original-To: apmail-uima-user-archive@www.apache.org
Delivered-To: apmail-uima-user-archive@www.apache.org
Received: from mail.apache.org (hermes.apache.org [140.211.11.3])
	by minotaur.apache.org (Postfix) with SMTP id 7DE89109BE
	for <apmail-uima-user-archive@www.apache.org>;
 Mon, 30 Sep 2013 07:36:06 +0000 (UTC)
Received: (qmail 61568 invoked by uid 500); 30 Sep 2013 07:35:57 -0000
Delivered-To: apmail-uima-user-archive@uima.apache.org
Received: (qmail 60643 invoked by uid 500); 30 Sep 2013 07:35:53 -0000
Mailing-List: contact user-help@uima.apache.org; run by ezmlm
Precedence: bulk
List-Help: <mailto:user-help@uima.apache.org>
List-Unsubscribe: <mailto:user-unsubscribe@uima.apache.org>
List-Post: <mailto:user@uima.apache.org>
List-Id: <user.uima.apache.org>
Reply-To: user@uima.apache.org
Delivered-To: mailing list user@uima.apache.org
Received: (qmail 60610 invoked by uid 99); 30 Sep 2013 07:35:45 -0000
Received: from minotaur.apache.org (HELO minotaur.apache.org) (140.211.11.9)
    by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 30 Sep 2013 07:35:45 +0000
Received: from localhost (HELO [10.0.1.20]) (127.0.0.1)
  (smtp-auth username rec, mechanism plain)
  by minotaur.apache.org (qpsmtpd/0.29) with ESMTP;
 Mon, 30 Sep 2013 07:35:45 +0000
Content-Type: text/plain; charset=windows-1252
Mime-Version: 1.0 (Mac OS X Mail 6.6 \(1510\))
Subject: Re: UIMA Feature
From: Richard Eckart de Castilho <rec@apache.org>
In-Reply-To: 
 <CAHx4_t5Li-GrR3PrBnzdaa2-HHTKxBS1=y4MRzmiM_3ScqH6UQ@mail.gmail.com>
Date: Mon, 30 Sep 2013 09:35:42 +0200
Content-Transfer-Encoding: quoted-printable
Message-Id: <F9FD224F-1E31-40FE-8FAE-A964FF6512C3@apache.org>
References: 
 <CAHx4_t5Li-GrR3PrBnzdaa2-HHTKxBS1=y4MRzmiM_3ScqH6UQ@mail.gmail.com>
To: user@uima.apache.org
X-Mailer: Apple Mail (2.1510)

That's an interesting question. This should work:

Create a type:=20

ElementList {
  FSArray<TOP> elements;
}

In the type where you want to create the ArrayList<ArrayList> feature,
add a this:

=85 {
  FSArray<ElementList> elements;
}

When you say ArrayList<ArrayList>, this can also be written as

ArrayList<ArrayList> ->=20
ArrayList<ArrayList<X>>, X =3D Object ->
ArrayList<Y>, Y =3D ArrayList<X>, X =3D Object

In Java, this Y can be anonymous, but in UIMA, afaik we need to make it
explicit. Mind there is no "Object" in UIMA, the equivalent is "TOP":

FSArray<Y>, Y =3D ElementList =3D FSArray<X>, X =3D TOP

You should be able to replace FSArray with FSList if you prefer that.

-- Richard

On 30.09.2013, at 06:33, harshal patni <patni.harshal@gmail.com> wrote:

> Hi,
>   I am trying to create a feature within my TypeSystemDescriptor. I =
would
> like to create a feature of type ArrayList<ArrayList> "ArrayList of
> Arraylist". Is it possible to create this feature? How would we do =
that?
>=20
> Harshal