pjs/grendel/storage/intertwingle/DB.java

45 строки
1.5 KiB
Java

/* -*- Mode: java; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is the Grendel mail/news client.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are Copyright (C) 1997
* Netscape Communications Corporation. All Rights Reserved.
*
* Created: Terry Weissman <terry@netscape.com>, 26 Sep 1997.
*/
package grendel.storage.intertwingle;
import java.io.IOException;
import java.util.Enumeration;
/** An interface to a RDF-ish database. */
public interface DB {
public void assert(String name, String slot, String value)
throws IOException;
public void unassert(String name, String slot, String value)
throws IOException;
public String findFirst(String name, String slot, boolean reverse)
throws IOException;
public Enumeration findAll(String name, String slot, boolean reverse)
throws IOException;
public boolean isAsserted(String name, String slot, String value)
throws IOException;
};