2 Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; version 2 of the License.
8 This program is distributed in the hope that it will be useful,
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 GNU General Public License for more details.
13 You should have received a copy of the GNU General Public License
14 along with this program; if not, write to the Free Software
15 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 package com.mysql.clusterj.core.store;
23 public interface Index {
25 /** Is this index unique?
27 * @return true if the index is unique
29 public boolean isUnique();
31 /** Get the external name of the index,
32 * i.e the name used to create the index.
36 public String getName();
38 /** Get the actual name of the index,
39 * e.g. idx_name_hash$unique.
41 * @return the actual name of the index
43 public String getInternalName();
45 /** Get the names of the columns in this index, in the order
46 * they are declared in the KEY clause of the CREATE TABLE
49 * @return the column names
51 public String[] getColumnNames();