com.github.pagehelper.dialect.auto

Class DefaultAutoDialect

java.lang.Object

com.github.pagehelper.dialect.auto.DefaultAutoDialect

All Implemented Interfaces:

AutoDialect<String>

public class DefaultAutoDialect
extends Object
implements AutoDialect<String>

最初的默认实现，获取连接再获取 url，这种方式通用性强，但是性能低，处理不好关闭连接时容易出问题

Author:

liuzh

Field Summary

Fields

Modifier and Type	Field and Description
static AutoDialect<String>	DEFAULT

Constructor Summary

Constructors

Constructor and Description
DefaultAutoDialect()

Method Summary

Modifier and Type	Method and Description
AbstractHelperDialect	extractDialect(String dialectKey, org.apache.ibatis.mapping.MappedStatement ms, DataSource dataSource, Properties properties) 提取 dialect
String	extractDialectKey(org.apache.ibatis.mapping.MappedStatement ms, DataSource dataSource, Properties properties) 获取用于缓存 AutoDialect.extractDialect(K, org.apache.ibatis.mapping.MappedStatement, javax.sql.DataSource, java.util.Properties) 方法返回值的 key，当返回 null 时不缓存，返回值时先判断是否已存在，不存在时调用 AutoDialect.extractDialect(K, org.apache.ibatis.mapping.MappedStatement, javax.sql.DataSource, java.util.Properties) 再缓存

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT

public static final AutoDialect<String> DEFAULT

Constructor Detail

DefaultAutoDialect

public DefaultAutoDialect()

Method Detail

extractDialectKey

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

Description copied from interface: AutoDialect

获取用于缓存 AutoDialect.extractDialect(K, org.apache.ibatis.mapping.MappedStatement, javax.sql.DataSource, java.util.Properties) 方法返回值的 key，当返回 null 时不缓存，返回值时先判断是否已存在，不存在时调用 AutoDialect.extractDialect(K, org.apache.ibatis.mapping.MappedStatement, javax.sql.DataSource, java.util.Properties) 再缓存

Specified by:

extractDialectKey in interface AutoDialect<String>

Returns:

extractDialect

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

Description copied from interface: AutoDialect

提取 dialect

Specified by:

extractDialect in interface AutoDialect<String>

Returns: