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package org.gvsig.fmap.dal;

import java.util.List;

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

/**

 * DataServerExplorer is an abstraction for any type of data server. It allows

 * connecting to the server and browsing its contents.

 *

 * More specifically, this interface provides a list of the available data

 * stores in a server.

 */

public interface DataServerExplorer {

        /**

         * Returns the DataServerExplorer's name

         *

         * @return String containing this DataServerExplorer's name

         */

        public String getName();

        /**

         * Indicates whether this DataServerExplorer can create a new DataStore in the

         * server.

         *

         * @return true if this DataServerExplorer can be created or false otherwise.

         */

        public boolean canAdd();

        /**

         * Indicates whether this DataServerExplorer can create a new DataStore in the

         * server.

         * 

         * @param parameters

         *            , an instance of DataStoreParameters.

         * 

         * @return true if this DataServerExplorer can be created or false otherwise.

         * @throws DataException

         */

        public boolean canAdd(String storeName)

                        throws DataException;

        /**

         * Provides a list of available stores in the server.

         *

         * @return list of DataStoreParameters

         *

         * @throws DataException

         */

        public List list() throws DataException;

        /**

         * Creates new DataStore in this server.

         * 

         * @param parameters

         *            , an instance of DataStoreParameters from

         *            {@link DataServerExplorer#getAddParameters(String)} that describes

         *            the new DataStore.

         * @param overwrite

         *            if the store already exists

         * 

         * @return true if the DataStoreParameters were successfully added, false

         *         otherwise.

         * 

         * @throws DataException

         */

        public boolean add(NewDataStoreParameters parameters, boolean overwrite)

                        throws DataException;

        /**

         * Removes a store from the server given its DataStoreParameters. If the

         * store is a file then this method deletes the file, if it is a table in a

         * database then this method drops the table, and so on.

         *

         * @param parameters

         * @throws DataException

         */

        void remove(DataStoreParameters parameters) throws DataException;

        /**

         * Given the store's name, returns its parameters for creation.

         * 

         * @param storeName

         * @return

         * @throws DataException

         */

        public NewDataStoreParameters getAddParameters(String storeName)

                        throws DataException;

        /**

         * Frees the resources used by this DataServerExplorer.

         *

         * @throws DataException

         */

        public void dispose() throws DataException;

        /**

         * Returns this DataServerExplorer parameters

         *

         * @return an instance of DataServerExplorerParameters containing this

         *         DataServerExplorer parameters.

         */

        public DataServerExplorerParameters getParameters();

}