Quadcap Embeddable Database

com/quadcap/sql/RenameCursor.java

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package com.quadcap.sql;

/* Copyright 1999 - 2003 Quadcap Software.  All rights reserved.
 *
 * This software is distributed under the Quadcap Free Software License.
 * This software may be used or modified for any purpose, personal or
 * commercial.  Open Source redistributions are permitted.  Commercial
 * redistribution of larger works derived from, or works which bundle
 * this software requires a "Commercial Redistribution License"; see
 * http://www.quadcap.com/purchase.
 *
 * Redistributions qualify as "Open Source" under  one of the following terms:
 *   
 *    Redistributions are made at no charge beyond the reasonable cost of
 *    materials and delivery.
 *
 *    Redistributions are accompanied by a copy of the Source Code or by an
 *    irrevocable offer to provide a copy of the Source Code for up to three
 *    years at the cost of materials and delivery.  Such redistributions
 *    must allow further use, modification, and redistribution of the Source
 *    Code under substantially the same terms as this license.
 *
 * Redistributions of source code must retain the copyright notices as they
 * appear in each source code file, these license terms, and the
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 * The Software is provided on an "AS IS" basis.  No warranty is
 * provided that the Software is free of defects, or fit for a
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 */

import java.util.Vector;

import java.sql.SQLException;

import com.quadcap.util.Debug;

/**
 * Cursor performs the name-mapping function associated with the
 * <code>SELECT</code> clause.
 *
 * @author Stan Bailes
 */
public class RenameCursor extends FilterCursor {
    public RenameCursor(Session session, Cursor cursor, String cname, 
                        Vector gitems)
        throws SQLException
    {
        super(session);
        cname = session.getConnection().resolveName(cname);
        setName(cname);
        setCursor(cursor);
        for (int i = 1; i <= cursor.getColumnCount(); i++) {
            Column col = cursor.getColumn(i);
            String gname = gitems == null ? "" : gitems.elementAt(i-1).toString();
            String name = qual + (gitems == null ? col.getShortName() : gname);
            addColumn(new Column(name, col));
        }
    }

}