Module bus.pager

Package org.miaixz.bus.pager.parsing

Class DefaultOrderBySqlParser

java.lang.Object

org.miaixz.bus.pager.parsing.DefaultOrderBySqlParser

All Implemented Interfaces:

OrderBySqlParser

public class DefaultOrderBySqlParser
extends Object
implements OrderBySqlParser

Default implementation of OrderBySqlParser for handling Order by clauses.

Since:

Java 17+

Author:

Kimi Liu

Constructor Summary

Constructors

Constructor	Description
DefaultOrderBySqlParser()

Method Summary

Modifier and Type	Method	Description
String	converToOrderBySql(String sql, String orderBy)	Converts a SQL statement to include an ORDER BY clause.
static List<net.sf.jsqlparser.statement.select.OrderByElement>	extraOrderBy(net.sf.jsqlparser.statement.select.Select select)	Extracts the ORDER BY elements from a SELECT statement and sets the default order by to null.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

DefaultOrderBySqlParser

public DefaultOrderBySqlParser()

Method Details

extraOrderBy

public static List<net.sf.jsqlparser.statement.select.OrderByElement> extraOrderBy(net.sf.jsqlparser.statement.select.Select select)

Extracts the ORDER BY elements from a SELECT statement and sets the default order by to null.

Parameters:

select - the SELECT statement

Returns:

the list of OrderByElements

converToOrderBySql

public String converToOrderBySql(String sql,
 String orderBy)

Converts a SQL statement to include an ORDER BY clause. If the original SQL contains an ORDER BY clause with parameters, it throws a PageException. If parsing fails, it falls back to appending the ORDER BY clause directly.

Specified by:

converToOrderBySql in interface OrderBySqlParser

Parameters:

sql - the original SQL statement

orderBy - the ORDER BY clause to be added

Returns:

the modified SQL statement with the ORDER BY clause