/// <summary>
/// 创建主键
/// </summary>
/// <param name="Generator"></param>
public virtual void CreatePrimaryKey(IPKGenerator Generator)
{
AbstractEntity Entity = m_Entity as AbstractEntity;
//创建主键
if (Generator == null)
{
throw new MappingException("创建主键生成器失败，主键生成器必须实现Draco.DB.ORM.AutoSQL.PKGenerator.IPKGenerator接口，请检查映射文件中主键生成器的配置信息!");
}
Hashtable Next = Generator.GeneratNextPrimaryKey(m_Mapping);
if (Next != null && Next.Count > 0)
{
foreach (string PropertyName in Next.Keys)
{
object NextValue = Next[PropertyName];
PropertyInfo Property = Entity.GetType().GetProperty(PropertyName);
if (Property != null)
{
object _value = Convert.ChangeType(NextValue, Property.PropertyType);
Property.SetValue(Entity, _value, null);
}
}
}
}
/// <summary>
/// 插入记录
/// </summary>
/// <returns></returns>
public int Insert()
{
string SQL = "";
IDataParameter[] paras = null;
if (!m_SQLBuilder.CheckePrimaryKey())
{
//没有设定主键，就先确认主键
IPKGenerator Generator = m_SQLBuilder.CreatePKGenerator(m_Handle);
m_SQLBuilder.CreatePrimaryKey(Generator);
}
SQL = m_SQLBuilder.CreateInsertSQL(out paras);
ToLogout(SQL, paras);
int i = m_Handle.ExecuteNonQuery(SQL, paras);
m_SQLBuilder.ProcessOutputParameters(paras);
return(i);
}
/// <summary>
/// 获取主键生成器
/// </summary>
/// <param name="PKGeneratorName">主键生成器名称</param>
/// <param name="DbHandle"></param>
/// <returns></returns>
public static IPKGenerator GetPKGenerator(string PKGeneratorName, IDataBaseHandler DbHandle)
{
if (String.IsNullOrEmpty(PKGeneratorName))
{
throw new ArgumentNullException("PKGeneratorName can not be empty!");
}
if (m_PKGTable.ContainsKey(PKGeneratorName))
{
IPKGenerator PKG = m_PKGTable[PKGeneratorName] as IPKGenerator;
if (PKG != null && PKG.IsReusable)
{
return(PKG);
}
}
IPKGenerator NewPKG = CreatePKGenerator(PKGeneratorName, DbHandle);
m_PKGTable[PKGeneratorName] = NewPKG;
return(NewPKG);
}
/// <summary>
/// 构建主键生成器
/// </summary>
/// <param name="DbHandle"></param>
/// <returns></returns>
public virtual IPKGenerator CreatePKGenerator(IDataBaseHandler DbHandle)
{
if (String.IsNullOrEmpty(m_Mapping.Generator))
{
throw new MappingException("主键生成器配置为空，请检查映射文件中主键生成器的配置信息!");
}
IPKGenerator Generator = null;
try
{
Generator = PKGeneratorFactory.GetPKGenerator(m_Mapping.Generator, DbHandle);
}
catch (Exception ex)
{
throw new MappingException("创建主键生成器失败，请检查映射文件中主键生成器的配置信息!详细信息:" + ex.ToString());
}
if (Generator == null)
{
throw new MappingException("创建主键生成器失败，主键生成器必须实现Draco.DB.ORM.PKGenerator.IPKGenerator接口，请检查映射文件中主键生成器的配置信息!");
}
return(Generator);
}
