net.hasor.db.jdbc.lambda.segment.SqlKeyword Maven / Gradle / Ivy
/*
* Copyright 2002-2005 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.hasor.db.jdbc.lambda.segment;
/**
* SQL 查询相关的关键字。
* @version : 2020-10-31
* @author 赵永春 ([email protected])
*/
public enum SqlKeyword implements Segment {
AND("AND"),//
OR("OR"),//
IN("IN"),//
NOT("NOT"),//
LIKE("LIKE"),//
EQ("="),//
NE("<>"),//
GT(">"),//
GE(">="),//
LT("<"),//
LE("<="),//
IS_NULL("IS NULL"),//
IS_NOT_NULL("IS NOT NULL"),//
BETWEEN("BETWEEN"),//
//
GROUP_BY("GROUP BY"),//
HAVING("HAVING"),//
ORDER_BY("ORDER BY"),//
EXISTS("EXISTS"),//
SELECT("SELECT"),//
COLUMNS("*"),//
FROM("FROM"),//
WHERE("WHERE"),//
EMPTY(""),//
LEFT("("), //
RIGHT(")") //
;
//
private final String sqlString;
SqlKeyword(String sqlString) {
this.sqlString = sqlString;
}
@Override
public String getSqlSegment() {
return this.sqlString;
}
}