com.base4j.mybatis.sql.template.SqlTemplateFactory Maven / Gradle / Ivy
package com.base4j.mybatis.sql.template;
import com.base4j.mybatis.config.datasource.IdentityDialect;
import com.base4j.mybatis.config.mybatis.MybatisConfig;
import com.base4j.mybatis.tool.SpringContextHelper;
import java.util.HashMap;
import java.util.Map;
/**
* SqlTemplate创建工场
* Created by panlc on 2017-03-20.
*/
public class SqlTemplateFactory {
private SqlTemplateFactory() {
}
private static Map templateCache = new HashMap();
/**
* 获取sqlTemplate
*
* @param sqlSessionFactoryBeanName sqlSessionFactory名称
* @return sql生成模板
*/
public static AbstractSqlTemplate getSqlTemplate(String sqlSessionFactoryBeanName) {
if (!templateCache.containsKey(sqlSessionFactoryBeanName)) {
templateCache.put(sqlSessionFactoryBeanName, createSqlTemplate(sqlSessionFactoryBeanName));
}
return templateCache.get(sqlSessionFactoryBeanName);
}
/**
* 创建sqlTemplate
*
* @param sqlSessionFactoryBeanName sqlSession在Spring窗口中的id
* @return sql生成模板
*/
private static AbstractSqlTemplate createSqlTemplate(String sqlSessionFactoryBeanName) {
String dialect = getDialect(sqlSessionFactoryBeanName);
IdentityDialect identityDialect;
try {
identityDialect = IdentityDialect.valueOf(dialect);
} catch (Exception e) {
throw new IllegalArgumentException("not supported dialect : " + dialect);
}
return identityDialect.getSqlTemplate();
}
/**
* 根据sqlSessionFactory名称获取对应数据库类型
* @param sqlSessionFactoryBeanName sqlSession在Spring窗口中的id
* @return 生成的xml文件内容
*/
private static String getDialect(String sqlSessionFactoryBeanName) {
MybatisConfig mybatisConfig = SpringContextHelper.getBeanById("mybatisConfig");
return mybatisConfig.getSqlSessionDialect(sqlSessionFactoryBeanName);
}
}