1 /*

     2  * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 package java.sql;

    27 

    28 

    29 /**

    30  * Enumeration for pseudo/hidden column usage.

    31  *

    32  * @since 1.7

    33  * @see DatabaseMetaData#getPseudoColumns

    34  */

    35 public enum PseudoColumnUsage {

    36 

    37     /**

    38      * The pseudo/hidden column may only be used in a SELECT list.

    39      */

    40     SELECT_LIST_ONLY,

    41 

    42     /**

    43      * The pseudo/hidden column may only be used in a WHERE clause.

    44      */

    45     WHERE_CLAUSE_ONLY,

    46 

    47     /**

    48      * There are no restrictions on the usage of the pseudo/hidden columns.

    49      */

    50     NO_USAGE_RESTRICTIONS,

    51 

    52     /**

    53      * The usage of the pseudo/hidden column cannot be determined.

    54      */

    55     USAGE_UNKNOWN

    56 

    57 }