访问带注释的字段 [英] Access annotated fields
问题描述
我为我的项目制作了一个自定义注释,该注释仅用于字段,即
@MyAnnotation int myVariable
我有另一个类,它将负责根据变量值执行某些操作。项目有一个未确定数量的类,其中包含注释。如何使用我的注释处理器访问它们以访问值?
我可以检查每个类的注释变量,但不修改值,因为它不是一个对象。
关于如何做的任何建议?
提前致谢!! :)
INT getMyVariable(美孚富)抛出:IllegalArgumentException - ,IllegalAccessException {
for(Field f:foo.getClass()。getDeclaredFields()){
/ **
*确保'MyAnnotation'的RetentionPolicy为RUNTIME。
* /
if(f.isAnnotationPresent(MyAnnotation.class)){
return f.getInt(foo);
}
}
返回-1;
}
I made a custom Annotation for my project which will be used only with fields, that is
@MyAnnotation int myVariable
I have another class which will be in charge of performing some actions according to the variables values.The project has an undetermined number of classes with annotations included. How can I access them using my annotations processor in order to access the values?
I can check the annotated variables going though each class, but not modifying the value since is not an object.
any suggestion on how to do it?
Thanks in advance!! :)
int getMyVariable(Foo foo) throws IllegalArgumentException, IllegalAccessException{
for(Field f:foo.getClass().getDeclaredFields()){
/**
* Ensure the RetentionPolicy of 'MyAnnotation' is RUNTIME.
*/
if(f.isAnnotationPresent(MyAnnotation.class)){
return f.getInt(foo);
}
}
return -1;
}
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