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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) 2002-2008, 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.
 *
 * Created on November 3, 2003, 12:00 PM
 */

package org.geotools.styling;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Objects;
import org.geotools.data.DataStore;
import org.geotools.util.Utilities;
import org.opengis.feature.simple.SimpleFeatureType;

/**
 * DJB: on inlinefeature support: The inline features also lets you "sort of" make your WMS into a
 * WFS-T.
 *
 * I was going to implement this after SLD POST on monday, but I was expecting the definition in
 * the spec to be a bit "nicer". Right now its just:
 *
 * 
 * {@code      }
 * 
 *
 * (the spec hasnt been finalized)
 *
 * 
I guess if we make some assumptions about the data coming in - ie. every feature is the same
 * type, and its simple (no nesting, no , and no attributes), then we can parse ones that
 * look like:
 *
 * 
 * {@code  David Blasby  ... GML ...  }
 * 
 *
 * I'm not the best at reading .xsd, but I think that means you can stick in ANY GML Feature. If
 * so, its way too general.
 *
 * 
My plan was to parse the first Feature (or, the given schema if there is one) to find out all
 * the property names (and which one(s) are the geometry) and make a FeatureType. (I'd assume all
 * the properties were strings)
 *
 * 
Then, make a MemoryDataStore and put the features in it. I can pass this off to the lite
 * renderer as normal.
 *
 * @author jamesm
 */
public class UserLayerImpl extends StyledLayerImpl implements UserLayer {

    /**
     * the (memory) datastore that will contain the inline features. The initial implementation has
     * this as a MemoryDataStore with one FeatureType in it. You should ensure that you dont keep
     * references to it around so it can be GCed.
     */
    private DataStore inlineFeatureDatastore = null;

    private SimpleFeatureType inlineFeatureType = null;
    RemoteOWS remoteOWS;
    List