/* // $Id: //guest/julian_hyde/saffron/src/main/saffron/Connection.java#1 $ // Saffron preprocessor and data engine // Copyright (C) 2002 Julian Hyde <julian.hyde@mail.com> // // This library is free software; you can redistribute it and/or // modify it under the terms of the GNU Library General Public // License as published by the Free Software Foundation; either // version 2 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 // Library General Public License for more details. // // You should have received a copy of the GNU Library 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. // // See the COPYING file located in the top-level-directory of // the archive of this library for complete text of license. */ package saffron; /** * A <code>Connection</code> is an object from which {@link Table}s can be * accessed. Every class which implements <code>Connection</code> must * implement the <em>public static</em> method <code>Schema getSchema()</code>. * * @author jhyde * @since 10 November, 2001 * @version $Id: //guest/julian_hyde/saffron/src/main/saffron/Connection.java#1 $ **/ public interface Connection { /** * Returns the schema underlying this connection. Non-abstract classes * implementing this interface must also provide <code>public static Schema * getSchemaStatic()</code>. **/ Schema getSchema(); /** * In theory, this method returns the contents of <code>tableName</code> as * an array; in practice, it is a placeholder recognized by the optimizer * to do something much more efficient. This involves calling <code>{@link * Schema#getTableForMember}(tableName).{@link Table#toRel}(cluster, * exp)</code>. **/ Object contentsAsArray(String tableName); } // End Connection.java
# | Change | User | Description | Committed | |
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#2 | 1474 | Julian Hyde |
saffron: Aggregations are working. Renamed 'aggregator' to 'aggregation'. |
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#1 | 1467 | Julian Hyde |
saffron: First saffron check-in; incorporate my changes to openjava. |