/// <summary>
/// 按照关键字段查找对象
/// </summary>
/// <param name="tx"></param>
/// <param name="criteria"></param>
/// <returns></returns>
public T GetEntity(DbTransaction tx, Criteria criteria)
{
T entity;
entity = (T)(ORMapping.FindEntity(tx, EntityType, TableName, criteria));
return(entity);
}
/// <summary>
/// 按照关键字段查找对象
/// </summary>
/// <param name="tx"></param>
/// <param name="keyValue"></param>
/// <param name="keyValues"></param>
/// <returns></returns>
public T GetEntity(DbTransaction tx, object keyValue, params object[] keyValues)
{
T entity;
IExpression exp = GetKeysExpression(keyValue, keyValues);
entity = (T)(ORMapping.FindEntity(tx, EntityType, TableName, new Criteria(exp)));
return(entity);
}
/// <summary>
/// 按照关键字段查找对象
/// </summary>
/// <param name="criteria"></param>
/// <returns></returns>
public T GetEntity(Criteria criteria)
{
T entity;
using (DbConnection cn = NewConnection())
{
cn.Open();
entity = (T)(ORMapping.FindEntity(cn, EntityType, TableName, criteria));
}
return(entity);
}
/// <summary>
/// 按照关键字段查找对象
/// </summary>
/// <param name="keyValue"></param>
/// <param name="keyValues"></param>
/// <returns></returns>
public T GetEntity(object keyValue, params object[] keyValues)
{
T entity;
IExpression exp = GetKeysExpression(keyValue, keyValues);
using (DbConnection cn = NewConnection())
{
cn.Open();
entity = (T)(ORMapping.FindEntity(cn, EntityType, TableName, new Criteria(exp)));
}
return(entity);
}
