X++ Attributes

Hossein.K

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Microsoft Dynamics AX supports attributes being assigned to X++ code. This
allows for a rich set of metadata to be built. It describes methods and types that
are defined within X++ code.
Attributes are defined as classes that are derived from the SysAttribute class.
The following code for the SampleAttribute class is an example of an attribute
class:public class SampleAttribute extends SysAttribute
{
str sMetadata; // A field in classDeclaration.
public str GetMetadata()
{
return sMetadata;
}
public void new(str _sMetadata)
{
super();
sMetadata = _sMetadata;
}
}Attributes can then be used on other classes and methods. The following example
shows the structure of a new Attribute class, AuthorAttribute:class AuthorAttribute extends SysAttribute
{
str author;
public str Author()
{
return author;
}
public void new(str _author)
{
super();
author = _author;
}
}
In the following example, AuthorAttribute is used to decorate other classes and
methods:[AuthorAttribute("Isaac")]
public class MyClass()
{
...
}
[AuthorAttribute("Isaac")]
void MyMethod()
{
...
}

Best Regards,
Hossein Karimi