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package org.gvsig.fmap.dal.feature.spi.memory;

import org.gvsig.fmap.dal.exception.DataException;

import org.gvsig.fmap.dal.feature.DisposableIterator;

import org.gvsig.fmap.dal.feature.FeatureQuery;

import org.gvsig.fmap.dal.feature.FeatureType;

import org.gvsig.fmap.dal.feature.spi.FeatureSetProvider;

public class MemoryFeatureSet implements FeatureSetProvider {

        AbstractMemoryStoreProvider store;

        public MemoryFeatureSet(AbstractMemoryStoreProvider store,

                        FeatureQuery query, FeatureType featureType) {

                this.store = store;

                /*

                 * Nota: Como no sabe filtrar ni ordenar ignora el query.

                 */

        }

        public boolean canFilter() {

                return false;

        }

        public boolean canOrder() {

                return false;

        }

        public boolean canIterateFromIndex() {

                return true;

        }

        public DisposableIterator fastIterator(long index) throws DataException {

                return store.dataIterator(index);

        }

        public DisposableIterator fastIterator() throws DataException {

                return store.dataIterator();

        }

        public long getSize() throws DataException {

                return store.getDataSize();

        }

        public boolean isEmpty() throws DataException {

                return store.getDataSize() < 1;

        }

        public DisposableIterator iterator() throws DataException {

                return store.dataIterator();

        }

        public DisposableIterator iterator(long index) throws DataException {

                return store.dataIterator(index);

        }

        public void dispose() {

                store = null;

        }

}