/**
* 判断数据库表是否存在(只适用于DB2)
*
* @param schema
* @param tableName
* @return true:存在；false:不存在
* @author LiuKun
* @throws SQLException
* @created 2012-8-9 下午7:29:24
*/
@Transactional
public Boolean existTableForDB2(String schema, String tableName) {
if (Validator.isEmpty(schema)) {
throw new RuntimeException("schema为空！");
}
if (Validator.isEmpty(tableName)) {
throw new RuntimeException("tableName为空！");
}
String sql = " SELECT NAME FROM SYSIBM.SYSTABLES WHERE CREATOR = ? AND NAME = ? ";
List<Map<String, Object>> mapList =
executeQuery(sql, null, schema.toUpperCase(), tableName.toUpperCase());
if (Validator.isNotEmpty(mapList)) {
return Boolean.TRUE;
} else {
return Boolean.FALSE;
}
}
/**
* 检测某个属性值是否存在
*
* @param clazz
* @param propertyName
* @param value
* @return
* @author LiuKun
* @created 2012-7-28 上午11:36:02
*/
@Transactional
public <E extends Entity> Boolean checkExist(Class<E> clazz, String propertyName, Object value) {
List<E> list = findByProperty(clazz, propertyName, value);
if (Validator.isEmpty(list)) {
return Boolean.FALSE;
} else {
return Boolean.TRUE;
}
}
/**
* 判断数据库表是否存在
*
* @param tableName
* @return true:存在；false:不存在
* @author LiuKun
* @throws SQLException
* @created 2012-8-9 下午7:29:24
*/
@Transactional
public Boolean existTable(String tableName) {
if (Validator.isEmpty(tableName)) {
throw new RuntimeException("数据库表名为空！");
}
Boolean flag = Boolean.FALSE;
try {
flag = getBaseDao().existTable(tableName);
} catch (SQLException e) {
throw new RuntimeException(e);
}
return flag;
}