Application: gvSIG desktop

package org.gvsig.data.vectorial;

import java.util.Iterator;

import org.gvsig.data.IObservable;

import org.gvsig.data.vectorial.visitor.IFeaturesVisitor;

import org.gvsig.exceptions.BaseException;

public abstract class AbstractFeatureCollection implements IFeatureCollection{

        protected boolean modified=false;

        public void update(IObservable obsevable, Object notification) {

                if (modified){

                        return;

                }

                String type = ((IFeatureStoreNotification)notification).getType();

                if (type.equalsIgnoreCase(IFeatureStoreNotification.AFTER_INSERT) ||

                                type.equalsIgnoreCase(IFeatureStoreNotification.AFTER_DELETE) ||

                                type.equalsIgnoreCase(IFeatureStoreNotification.AFTER_UPDATE)){

                        modified=true;

                }

        }

        /*

         * (non-Javadoc)

         * @see org.gvsig.data.vectorial.visitor.IFeaturesVisitable#accept(org.gvsig.data.vectorial.visitor.IFeaturesVisitor)

         */

        public void accept(IFeaturesVisitor visitor) throws BaseException {

                Iterator iterator=iterator();

                while (iterator.hasNext()) {

                        IFeature feature = (IFeature) iterator.next();

                        visitor.visit(feature);

                }

        }

}