public IOperation Build()
{
Debug.Assert(_canBuild, ErrorMessages.InvalidOperation);
var operation = new MergeableOperation <T>(_function, _new, _prev, _mergeJudge)
{
Message = _name
};
return(_eventEventBinder.BindEvents(operation));
}
/// <summary>
/// 2つのオペレーションをマージしたオペレーションを作成
/// 失敗した場合はOperation.Emptyが返却される
/// </summary>
public static IOperation MakeMerged(MergeableOperation prevOperation, MergeableOperation postOperation, bool checkKey = true)
{
if (checkKey)
{
if (postOperation.MergeJudge.CanMerge(prevOperation.MergeJudge))
{
return(new MergeableOperation(postOperation._rollForward, prevOperation._rollBack, postOperation.MergeJudge));
}
return(Extensions.Operation.Empty);
}
return(new MergeableOperation(postOperation._rollForward, prevOperation._rollBack, postOperation.MergeJudge));
}
public MergeableBuilder(MergeableOperation operation) : base(operation)
{
_mergeableOperation = operation;
}