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The main module contains the GeoTools public interfaces that are used by other GeoTools modules (and GeoTools applications). Where possible we make use industry standard terms as provided by OGC and ISO standards. The formal GeoTools public api consists of gt-metadata, jts and the gt-main module. The main module contains the default implementations that are available provided to other GeoTools modules using our factory system. Factories are obtained from an appropriate FactoryFinder, giving applications a chance configure the factory used using the Factory Hints facilities. FilterFactory ff = CommonFactoryFinder.getFilterFactory(); Expression expr = ff.add( expression1, expression2 ); If you find yourself using implementation specific classes chances are you doing it wrong: Expression expr = new AddImpl( expression1, expressiom2 );

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/*
 *    GeoTools - The Open Source Java GIS Toolkit
 *    http://geotools.org
 *
 *    (C) 2005-2008, Open Source Geospatial Foundation (OSGeo)
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation;
 *    version 2.1 of the License.
 *
 *    This library is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *    Lesser General Public License for more details.
 */
package org.geotools.styling;

import org.opengis.filter.expression.Expression;

/** Contains label shield hack. */
public interface TextSymbolizer2 extends TextSymbolizer {
    /**
     * The nonstandard-SLD graphic element supports putting little graphical-bits onto labels.
     * Useful for things like interstate road shields or labeled logos
     *
     * @return - the Graphic object to be rendered under the label text
     */
    public Graphic getGraphic();

    /**
     * The nonstandard-SLD graphic element supports putting little graphical-bits onto labels.
     * Useful for things like interstate road shields or labeled logos
     *
     * @param graphic - the Graphic object which will be rendered under the label text
     */
    public void setGraphic(Graphic graphic);

    /**
     * Abstract is used by text oriented renderers such as KML and RSS to specify an abstract (RSS)
     * or a snippet (KML)
     */
    public Expression getSnippet();

    public void setSnippet(Expression expression);

    /**
     * Description is used by text oriented renders such as KML and RSS to specify a feature's
     * description
     */
    public Expression getFeatureDescription();

    public void setFeatureDescription(Expression description);

    /** Other text can be used to allow open ended extensions on text oriented output formats */
    public OtherText getOtherText();

    public void setOtherText(OtherText otherText);
}