Model elements：一個模型元素。XDE中提供了一個簡單的編程模型，可以通過對模型元素API的調(diào)用（比如得到一個類的所有公有方法）來完成給位復(fù)雜的代碼定制。和模式聯(lián)系在一起的時候，Model Elements類型的參數(shù)可以是模式中的一個模版參數(shù)，在模式展開的時候，會用具體的模版參數(shù)值來替換這個代碼模版中參數(shù)。
＜% // assume: myClass is "this" Class with debug Operation function debugStatements(myClass) { var attributeCollection = myClass.GetAttributeCollection(); var attributeCollection1= Interfaces.queryInterface(attributeCollection, "com.rational.rms.IRMSElementCollection"); var attributeCount = attributeCollection.getCount(); debugStatements = ""; for (i=1; i＜=attributeCount; i++) { var rmsAttribute = attributeCollection1.GetElementAt(i); var attrName = rmsAttribute.getName(); %＞ System.out.＜% } } //assume: myOperation is debug operation function debugOperation(myOperation) { var thisOperation = Interfaces.queryInterface(myOperation, "com.rational.uml70.IUMLOperation"); var thisClass = thisOperation.GetContainer(); var myClass = Interfaces.queryInterface(thisClass, "com.rational.uml70.IUMLClass"); debugStatements(myClass); } var myOperation = Interfaces.queryInterface(thisElement, "com.rational.uml70.IUMLOperation"); debugOperation(myOperation); // end %＞
