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package org.gvsig.fmap.dal.feature.impl.featureSet;

import java.util.ArrayList;

import java.util.Collections;

import java.util.Iterator;

import java.util.List;

import org.gvsig.fmap.dal.feature.impl.DefaultFeature;

public class OrderedIterator extends DefaultIterator {

        OrderedIterator(DefaultFeatureSet featureSet, Iterator iterator, long index) {

                super(featureSet);

                // FIXME QUE PASA CON SIZE > Integer.MAX_VALUE ?????

                if (featureSet.orderedData == null) {

                        List data = new ArrayList();

                        Object item;

                        while (iterator.hasNext()) {

                                item = iterator.next();

                                if (item instanceof DefaultFeature) {

                                        data.add(((DefaultFeature) item).getData());

                                } else {

                                        data.add(item);

                                }

                        }

                        Collections.sort(data, new FeatureDataComparator(featureSet.store,

                                        featureSet.query.getOrder()));

                        featureSet.orderedData = data;

                }

                if (index < Integer.MAX_VALUE) {

                        this.iterator = featureSet.orderedData.listIterator((int) index);

                } else {

                        this.iterator = featureSet.orderedData.iterator();

                        this.skypto(index);

                }

        }

}