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package mil.nga.geopackage.attributes;

import mil.nga.geopackage.BoundingBox;
import mil.nga.geopackage.GeoPackageException;
import mil.nga.geopackage.contents.Contents;
import mil.nga.geopackage.db.GeoPackageConnection;
import mil.nga.geopackage.user.UserDao;
import mil.nga.proj.Projection;

/**
 * Attributes DAO for reading attributes user data tables
 * 
 * @author osbornb
 * @since 1.2.1
 */
public class AttributesDao extends
		UserDao {

	/**
	 * Attributes connection
	 */
	private final AttributesConnection attributesDb;

	/**
	 * Constructor
	 * 
	 * @param database
	 *            database
	 * @param db
	 *            db connection
	 * @param table
	 *            attributes table
	 */
	public AttributesDao(String database, GeoPackageConnection db,
			AttributesTable table) {
		super(database, db, new AttributesConnection(db), table);

		this.attributesDb = (AttributesConnection) getUserDb();
		if (table.getContents() == null) {
			throw new GeoPackageException(AttributesTable.class.getSimpleName()
					+ " " + table.getTableName() + " has null "
					+ Contents.class.getSimpleName());
		}
	}

	/**
	 * {@inheritDoc}
	 * 
	 * Not supported for Attributes
	 */
	@Override
	public BoundingBox getBoundingBox() {
		throw new GeoPackageException(
				"Bounding Box not supported for Attributes");
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public BoundingBox getBoundingBox(Projection projection) {
		throw new GeoPackageException(
				"Bounding Box not supported for Attributes");
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public AttributesRow newRow() {
		return new AttributesRow(getTable());
	}

	/**
	 * Get the Attributes connection
	 * 
	 * @return attributes connection
	 */
	public AttributesConnection getAttributesDb() {
		return attributesDb;
	}

}