01: /* Copyright (C) 2004 - 2007 db4objects Inc. http://www.db4o.com
02:
03: This file is part of the db4o open source object database.
04:
05: db4o is free software; you can redistribute it and/or modify it under
06: the terms of version 2 of the GNU General Public License as published
07: by the Free Software Foundation and as clarified by db4objects' GPL
08: interpretation policy, available at
09: http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
10: Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
11: Suite 350, San Mateo, CA 94403, USA.
12:
13: db4o is distributed in the hope that it will be useful, but WITHOUT ANY
14: WARRANTY; without even the implied warranty of MERCHANTABILITY or
15: FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16: for more details.
17:
18: You should have received a copy of the GNU General Public License along
19: with this program; if not, write to the Free Software Foundation, Inc.,
20: 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21: package com.db4o.db4ounit.common.reflect.custom;
22:
23: import com.db4o.foundation.*;
24:
25: /**
26: * Models an external storage model to which db4o have to be adapted to.
27: *
28: * This particular one is a tuple based persistence mechanism modeled after the GigaSpaces
29: * persistence API.
30: *
31: * There are only two types of fields supported: string and int which are mapped
32: * to java.lang.String and java.lang.Integer.
33: */
34: public interface PersistenceProvider {
35:
36: void initContext(PersistenceContext context);
37:
38: void closeContext(PersistenceContext context);
39:
40: void purge(String url);
41:
42: void createEntryClass(PersistenceContext context, String className,
43: String[] fieldNames, String[] fieldTypes);
44:
45: void createIndex(PersistenceContext context, String className,
46: String fieldName);
47:
48: void dropIndex(PersistenceContext context, String className,
49: String fieldName);
50:
51: void dropEntryClass(PersistenceContext context, String className);
52:
53: void insert(PersistenceContext context, PersistentEntry entry);
54:
55: void update(PersistenceContext context, PersistentEntry entry);
56:
57: int delete(PersistenceContext context, String className, Object uid);
58:
59: Iterator4 select(PersistenceContext context,
60: PersistentEntryTemplate template);
61: }
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