001/* 
002 * JKNIV, SQLegance keeping queries maintainable.
003 * 
004 * Copyright (C) 2017, the original author or authors.
005 *
006 * This library is free software; you can redistribute it and/or
007 * modify it under the terms of the GNU Lesser General Public
008 * License as published by the Free Software Foundation; either
009 * version 2.1 of the License.
010 * 
011 * This library is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014 * Lesser General Public License for more details.
015 * 
016 * You should have received a copy of the GNU Lesser General Public
017 * License along with this library; if not, write to the Free Software Foundation, Inc., 
018 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
019 */
020package net.sf.jkniv.sqlegance.dialect;
021
022/**
023 * Database SQL vendor features support.
024 * 
025 * @author Alisson Gomes
026 * @since 0.6.0
027 */
028public enum SqlFeatureSupport
029{
030    UNKNOW,
031    /** Native syntax of SQL vendor support some form of limiting query results? */
032    LIMIT,
033    /** Native syntax of SQL vendor support some form of offset query results? */
034    LIMIT_OFF_SET,
035    /** Native syntax of SQL vendor support some form of enumerate the rows results? */
036    ROWNUM,
037    /** supports holdability at the connection level */
038    CONN_HOLDABILITY,
039    /** supports holdability at the statement level */
040    STMT_HOLDABILITY,
041    /** a page selected to mark the reader's place */
042    BOOKMARK_QUERY,
043    /** check if database needs a new round trip to get total of records */
044    PAGING_ROUNDTRIP,
045    /** Mechanism for generating unique identification */
046    SEQUENCE
047    
048    /* breaks the query results into pages */
049    //PAGE_QUERY,
050    /* allow random jumps between pages */
051    //OFFSET_QUERY
052    //SET_HOLDABILITY,
053    //CLOSE_CURSORS_AT_COMMIT
054    ;
055    
056}