cn.gtmap.estateplat.core.support.mybatis.page.dialect

Class Dialect

java.lang.Object

cn.gtmap.estateplat.core.support.mybatis.page.dialect.Dialect

Direct Known Subclasses:

MySQLDialect, OracleDialect, OracleOrderDialect, SqlServerDialect

public abstract class Dialect
extends Object

Date Created 2014-2-18.

Version:

1.0

Author:

loafer[zjh527@gmail.com]

Constructor Summary

Constructors

Constructor and Description
Dialect()

Method Summary

Methods

Modifier and Type	Method and Description
String	getCountString(String sql) 将sql包装成统计总数SQL
abstract String	getLimitString(String sql, int offset, int limit) 将sql包装成数据库支持的特有查询语句
abstract boolean	supportsLimit() 数据库本身是否支持分页查询

Methods inherited from class java.lang.Object

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

Constructor Detail

Dialect

public Dialect()

Method Detail

supportsLimit

public abstract boolean supportsLimit()

数据库本身是否支持分页查询

Returns:

true 支持分页查询

getLimitString

public abstract String getLimitString(String sql,
                    int offset,
                    int limit)

将sql包装成数据库支持的特有查询语句

Parameters:

sql - SQL语句

offset - 开始位置

limit - 每页显示的记录数

Returns:

数据库专属分页查询sql

getCountString

public String getCountString(String sql)

将sql包装成统计总数SQL

Parameters:

sql - SQL语句

Returns:

统计总数SQL