Module bus.pager

Package org.miaixz.bus.pager.dialect.replace

Class RegexWithNolock

java.lang.Object

org.miaixz.bus.pager.dialect.replace.RegexWithNolock

All Implemented Interfaces:

ReplaceSql

public class RegexWithNolock
extends Object
implements ReplaceSql

Implements ReplaceSql to handle SQL Server's `with(nolock)` hint using regular expressions. It temporarily replaces `with(nolock)` with a placeholder for SQL parsing and then restores it.

Since:

Java 17+

Author:

Kimi Liu

Field Summary

Fields

Modifier and Type	Field	Description
protected String	WITHNOLOCK	Placeholder for `with(nolock)` during SQL parsing.

Constructor Summary

Constructors

Constructor	Description
RegexWithNolock()

Method Summary

Modifier and Type	Method	Description
String	replace(String sql)	Replaces `with(nolock)` clauses in the SQL with a temporary placeholder.
String	restore(String sql)	Restores the `with(nolock)` clauses in the SQL from their temporary placeholders.

Methods inherited from class java.lang.Object

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

Field Details

WITHNOLOCK

protected String WITHNOLOCK

Placeholder for `with(nolock)` during SQL parsing.

Constructor Details

RegexWithNolock

public RegexWithNolock()

Method Details

replace

public String replace(String sql)

Replaces `with(nolock)` clauses in the SQL with a temporary placeholder. This is done to prevent parsing errors with SQL parsers that do not understand `with(nolock)`.

Specified by:

replace in interface ReplaceSql

Parameters:

sql - the original SQL string

Returns:

the SQL string with `with(nolock)` replaced by a placeholder

restore

public String restore(String sql)

Restores the `with(nolock)` clauses in the SQL from their temporary placeholders. This is called after SQL parsing and modification.

Specified by:

restore in interface ReplaceSql

Parameters:

sql - the SQL string with placeholders

Returns:

the SQL string with `with(nolock)` restored