在AspectJ中实现关系方面,我可以通过以下方式关联两种类型的对象(请参阅下面的代码示例)。我想将此概念转移到.net。 你能指点我的.net weaver实现,这将允许我这样做或类似吗?
关系方面由Pearce& Sons设计。高贵。在此处阅读有关概念和实施的更多信息:http://homepages.ecs.vuw.ac.nz/~djp/RAL/index.html
我是AOP的新手,我从AspectJ中获取的知识有限。我已经确定设计受益于AspectJ支持intertype声明和泛型类型的能力,以及能够在“方面”单元内对编织规则和建议进行分组。
使用(简化)关系方面关联学生和课程对象的示例:
public class Course02 {
public String title;
public Course02(String title) {this.title = title; }
}
public class Student02 {
public String name;
public Student02(String name) {this.name = name; }
}
public aspect Attends02 extends SimpleStaticRel02<Student02, Course02> {}
public abstract aspect SimpleStaticRel02<FROM,TO>{
public static interface Fwd{}
public static interface Bwd{}
declare parents : FROM implements Fwd;
declare parents : TO implements Bwd;
final private HashSet Fwd.fwd = new HashSet();
final private HashSet Bwd.bwd = new HashSet();
public boolean add(FROM _f, TO _t) {
Fwd f = (Fwd) _f;
Bwd t = (Bwd) _t;
f.fwd.add(_t); // from adder to i fwd hashset
return t.bwd.add(_f); // to adder from i bwd hashset
}
public void printFwdCount(FROM _f)
{
Fwd f = (Fwd) _f;
System.out.println("Count forward is: " + f.fwd.size());
}
public void printBwdCount(TO _t)
{
Bwd b = (Bwd) _t;
System.out.println("Count backward is: " + b.bwd.size());
}
}
public class TestDriver {
public TestDriver() {
Course02 comp205 = new Course02("comp205");
Course02 comp206 = new Course02("comp206");
Student02 Joe = new Student02("Joe");
Student02 Andreas = new Student02("Andreas");
Attends02.aspectOf().add(Joe, comp205);
Attends02.aspectOf().add(Joe, comp206);
Attends02.aspectOf().printFwdCount(Andreas);
Attends02.aspectOf().printFwdCount(Joe);
Attends02.aspectOf().printBwdCount(comp206);
}
public static void main(String[] args) {
new TestDriver();
}
}