In basic aggregation relationships , the lifecycle of a 在基本的聚合關系中,
Figure 12 shows an example of an aggregation relationship between a car and a wheel 圖12顯示車和輪胎間的聚合關系的例子。
The aggregation relationship becomes an ereference in the psm ecore model 所示的例子中,聚合關系變成了psm ecore模型中的ereference 。
In an aggregation relationship , the child class instance can outlive its parent class 在一個聚合關系中,子類實例可以比父類存在更長的時間。
An association with an aggregation relationship indicates that one class is a part of another class 有聚合關系的關聯指出,某個類是另外某個類的一部分。
This was not possible in uml 1 . x , because the notation set limited you to showing only the aggregation relationships that a class had 這在uml 1 . x中是不可能的,因為記號限制你只能顯示一個類所擁有的聚合關系。
In this task , you learn how to define member properties for attributes , to specify aggregation relationships between them . for more information , see 在該任務中,將了解如何定義屬性的成員屬性,以指定它們之間的聚合關系。
The orders object has an aggregation relationship with orderitem , and orderitem has an aggregation relationship with ordersubitem , as shown in the datagraph in Orders物件與orderitem物件之間存在聚集關系, orderitem物件與ordersubitem物件之間也存在聚集關系,如
To represent an aggregation relationship , you draw a solid line from the parent class to the part class , and draw an unfilled diamond shape on the parent class s association end 為了表現一個聚合關系,你畫一條從父類到部分類的實線,并在父類的關聯末端畫一個未填充棱形。
The composition aggregation relationship is just another form of the aggregation relationship , but the child class s instance lifecycle is dependent on the parent class s instance lifecycle 組合聚合關系是聚合關系的另一種形式,但是子類實例的生命周期依賴于父類實例的生命周期。