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Date: Fri, 5 Mar 2010 13:42:50 +0100
From: =?UTF-8?B?SsOpcsO0bWU=?= Rocheteau <jerome.rocheteau@univ-nantes.fr>
To: uima-user@incubator.apache.org
Subject: Re: FeaturePath's built-in function "coveredText()"
Message-ID: <20100305134250.7c6c8cb8@pnix>
In-Reply-To: <20100128144214.3224798b@pnix>
References: <20100128144214.3224798b@pnix>
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Hi,

I reply to my own mail; it could be useful for others.=20

I don't use the built-in function of the FeaturePath interface.
Instead, I define a class CoveredTextConstraint that inherits=20
from FSMatchConstraint as follows:=20

import org.apache.uima.cas.FSMatchConstraint;
import org.apache.uima.cas.FeatureStructure;
import org.apache.uima.jcas.tcas.Annotation;

public class CoveredTextConstraint implements FSMatchConstraint {
=09
	private String coveredText;

	private void setCoveredText(String coveredText) {
		this.coveredText =3D coveredText;
	}
=09
	private String getCoveredText() {
		return this.coveredText;
	}
=09
	public CoveredTextConstraint(String coveredText) {
		this.setCoveredText(coveredText);
	}

	public boolean match(FeatureStructure fs) {
		if (fs instanceof Annotation) {
			Annotation a =3D (Annotation) fs;
			String coveredText =3D a.getCoveredText();
			return coveredText.equals(this.getCoveredText());
		}
		return false;
	}

}

An instance of this class is created by defining the required covered text =
within its
constructor. The method 'boolean match(FeatureStructure)' checks if this fe=
ature
structure is an instance of the class uima.tcas.Annotation, then gets its c=
overed text and=20
return true if and only if the latter is exactly the same as that of the re=
quired
one. That's all.

You can use this class as follows:

CoveredTextConstraint aCoveredTextConstraint =3D new CoveredTextConstraint(=
" ... ");
FSIterator<Annotation> anIterator =3D cas.getAnnotationIndex().iterator();
FSIterator<Annotation> anotherIterator =3D
  aCas.createFilteredIterator(anIterator,aCoveredTextConstraint);
...

HTH
J=C3=A9r=C3=B4me

Thu, 28 Jan 2010 14:42:14 +0100,
J=C3=A9r=C3=B4me Rocheteau <jerome.rocheteau@univ-nantes.fr> a =C3=A9crit :

> Hello,
>=20
> I'd like to known how to use the built-in function "coveredText()" descri=
bed in the
> API of the FeaturePath interface? For example, I'd like to select annotat=
ions of
> type uima.tcas.Annotation covering the text "UIMA". How can I do that?
>=20
> Thanks in advance,
> J=C3=A9r=C3=B4me