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jTDS is an open source 100% pure Java (type 4) JDBC 3.0 driver for Microsoft SQL Server (6.5, 7, 2000, 2005, 2008, 2012) and Sybase ASE (10, 11, 12, 15). jTDS is based on FreeTDS and is currently the fastest production-ready JDBC driver for SQL Server and Sybase. jTDS is 100% JDBC 3.0 compatible, supporting forward-only and scrollable/updateable ResultSets and implementing all the DatabaseMetaData and ResultSetMetaData methods.

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// jTDS JDBC Driver for Microsoft SQL Server and Sybase
// Copyright (C) 2004 The jTDS Project
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
package net.sourceforge.jtds.jdbc;

import java.sql.Savepoint;
import java.sql.SQLException;

/**
 * Savepoint implementation class.
 *
 * @author Brian Heineman
 * @version $Id: SavepointImpl.java,v 1.5 2005/04/28 14:29:27 alin_sinpalean Exp $
 */
class SavepointImpl implements Savepoint {
    private final int id;
    private final String name;

    /**
     * Constructs a savepoint with a specific identifier.
     *
     * @param id a savepoint identifier
     */
    SavepointImpl(int id) {
        this(id, null);
    }

    /**
     * Constructs a savepoint with a specific identifier and name.
     *
     * @param id a savepoint identifier
     * @param name the savepoint name
     */
    SavepointImpl(int id, String name) {
        this.id = id;
        this.name = name;
    }

    public int getSavepointId() throws SQLException {
        if (name != null) {
            throw new SQLException(Messages.get("error.savepoint.named"), "HY024");
        }

        return id;
    }

    public String getSavepointName() throws SQLException {
        if (name == null) {
            throw new SQLException(Messages.get("error.savepoint.unnamed"), "HY024");
        }

        return name;
    }

    /**
     * Returns the savepoint id.  This will not throw an exception for
     * named savepoints as would {@link #getSavepointId}.
     *
     * @return the savepoint id
     */
    int getId() {
        return id;
    }
}