public static SchemaOpr Instance()
{
if (null == m_opr)
{
m_opr = new SchemaOpr();
}
return(m_opr);
}
public SchemaEntityOpr(Entity ent)
{
if (null != ent && ent.Schema.GUID == SchemaOpr.Instance().schema.GUID)
{
m_sch = ent.Schema;
m_entity = ent;
}
}
public SchemaEntityOpr(Element ele)
{
if (false == GetEntityFrom(ele))
{
m_sch = SchemaOpr.Instance().schema;
m_entity = new Entity(m_sch);
}
}
/// <summary>
/// 创建基于该表结构的ent
/// </summary>
/// <returns></returns>
static public Entity CreateEntity()
{
if (SchemaOpr.Instance().IsValid())
{
Entity ent = new Entity(SchemaOpr.Instance().schema);
return(ent);
}
//
return(null);
}
/// <summary>
/// 从element获取扩展存储
/// </summary>
/// <param name="ele"></param>
/// <returns></returns>
public bool GetEntityFrom(Element ele)
{
Entity ent = ele.GetEntity(SchemaOpr.Instance().schema);
if (ent.IsValid())
{
m_sch = ent.Schema;
m_entity = ent;
return(true);
}
//
return(false);
}