/// <summary>
/// 与指定的上一个数据动作建立关联
/// </summary>
/// <param name="lastAction"></param>
protected virtual void Contact(DataAction lastAction)
{
this.Last = lastAction;
if (lastAction != null)
{
this.Head = lastAction.Head;
}
}
protected virtual void ContactNext(DataAction nextAction)
{
this.Next = nextAction;
}
protected DataAction(DataAction lastAction) : this()
{
this.Contact(lastAction);
}
internal FilterAction(Expression <Func <T, Boolean> > condition, FilterCombinationType combinationType = FilterCombinationType.AndAlso, DataAction lastAction = null)
{
this.Condition = condition;
this.CombinationType = combinationType;
}