Module bus.pager

Package org.miaixz.bus.pager.dialect.auto

Class Early

java.lang.Object

org.miaixz.bus.pager.dialect.auto.Early

All Implemented Interfaces:

AutoDialect<String>

public class Early
extends Object
implements AutoDialect<String>

Early version default implementation for auto-detecting database dialects. This approach involves obtaining a connection to extract the JDBC URL, which is highly generic but can be less performant and may lead to issues if connections are not properly closed.

Since:

Java 17+

Author:

Kimi Liu

Field Summary

Fields

Modifier and Type	Field	Description
static final AutoDialect<String>	DEFAULT	Default instance of the Early auto-dialect.

Constructor Summary

Constructors

Constructor	Description
Early()

Method Summary

Modifier and Type	Method	Description
AbstractPaging	extractDialect(String dialectKey, org.apache.ibatis.mapping.MappedStatement ms, DataSource dataSource, Properties properties)	Extracts and returns the appropriate AbstractPaging dialect based on the extracted JDBC URL.
String	extractDialectKey(org.apache.ibatis.mapping.MappedStatement ms, DataSource dataSource, Properties properties)	Extracts the dialect key (JDBC URL) from the DataSource by obtaining a connection.

Methods inherited from class java.lang.Object

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

Field Details

DEFAULT

public static final AutoDialect<String> DEFAULT

Default instance of the Early auto-dialect.

Constructor Details

Early

public Early()

Method Details

extractDialectKey

public String extractDialectKey(org.apache.ibatis.mapping.MappedStatement ms,
 DataSource dataSource,
 Properties properties)

Extracts the dialect key (JDBC URL) from the DataSource by obtaining a connection. This method is generic but can be less efficient due to connection handling.

Specified by:

extractDialectKey in interface AutoDialect<String>

Parameters:

ms - the MappedStatement being executed

dataSource - the DataSource associated with the MappedStatement

properties - the configuration properties, including "closeConn" to control connection closing

Returns:

the JDBC URL as the dialect key

Throws:

org.miaixz.bus.core.lang.exception.PageException - if a SQLException occurs while getting the connection or its metadata

extractDialect

public AbstractPaging extractDialect(String dialectKey,
 org.apache.ibatis.mapping.MappedStatement ms,
 DataSource dataSource,
 Properties properties)

Extracts and returns the appropriate AbstractPaging dialect based on the extracted JDBC URL.

Specified by:

extractDialect in interface AutoDialect<String>

Parameters:

dialectKey - the JDBC URL obtained from extractDialectKey(org.apache.ibatis.mapping.MappedStatement, javax.sql.DataSource, java.util.Properties)

ms - the MappedStatement being executed

dataSource - the DataSource associated with the MappedStatement

properties - the configuration properties

Returns:

an instance of AbstractPaging representing the determined dialect

Throws:

org.miaixz.bus.core.lang.exception.PageException - if the database type cannot be automatically obtained or if dialect instantiation fails